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ec0bc1dbec477c28e31a3d5ce192071ec2435bcf
nats-server/test/jetstream_test.go
Derek Collison ec0bc1dbec First pass account configuration for jetstream 
Signed-off-by: Derek Collison <derek@nats.io>
2020-05-19 14:21:27 -07:00

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// Copyright 2019-2020 The NATS Authors
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package test
import (
"encoding/json"
"fmt"
"log"
"math/rand"
"net/url"
"os"
"path/filepath"
"reflect"
"runtime"
"sort"
"strconv"
"strings"
"sync"
"testing"
"time"
"github.com/nats-io/nats-server/v2/server"
"github.com/nats-io/nats-server/v2/server/sysmem"
"github.com/nats-io/nats.go"
"github.com/nats-io/nuid"
)
func TestJetStreamBasicNilConfig(t *testing.T) {
s := RunRandClientPortServer()
defer s.Shutdown()
if err := s.EnableJetStream(nil); err != nil {
t.Fatalf("Expected no error, got %v", err)
}
if !s.JetStreamEnabled() {
t.Fatalf("Expected JetStream to be enabled")
}
if s.SystemAccount() == nil {
t.Fatalf("Expected system account to be created automatically")
}
// Grab our config since it was dynamically generated.
config := s.JetStreamConfig()
if config == nil {
t.Fatalf("Expected non-nil config")
}
// Check dynamic max memory.
hwMem := sysmem.Memory()
if hwMem != 0 {
// Make sure its about 75%
est := hwMem / 4 * 3
if config.MaxMemory != est {
t.Fatalf("Expected memory to be 80 percent of system memory, got %v vs %v", config.MaxMemory, est)
}
}
// Check store path, should be tmpdir.
expectedDir := filepath.Join(os.TempDir(), server.JetStreamStoreDir)
if config.StoreDir != expectedDir {
t.Fatalf("Expected storage directory of %q, but got %q", expectedDir, config.StoreDir)
}
// Make sure it was created.
stat, err := os.Stat(config.StoreDir)
if err != nil {
t.Fatalf("Expected the store directory to be present, %v", err)
}
if stat == nil || !stat.IsDir() {
t.Fatalf("Expected a directory")
}
}
func RunBasicJetStreamServer() *server.Server {
opts := DefaultTestOptions
opts.Port = -1
opts.JetStream = true
return RunServer(&opts)
}
func RunJetStreamServerOnPort(port int) *server.Server {
opts := DefaultTestOptions
opts.Port = port
opts.JetStream = true
return RunServer(&opts)
}
func clientConnectToServer(t *testing.T, s *server.Server) *nats.Conn {
nc, err := nats.Connect(s.ClientURL(), nats.Name("JS-TEST"), nats.ReconnectWait(5*time.Millisecond), nats.MaxReconnects(-1))
if err != nil {
t.Fatalf("Failed to create client: %v", err)
}
return nc
}
func clientConnectWithOldRequest(t *testing.T, s *server.Server) *nats.Conn {
nc, err := nats.Connect(s.ClientURL(), nats.UseOldRequestStyle())
if err != nil {
t.Fatalf("Failed to create client: %v", err)
}
return nc
}
func TestJetStreamEnableAndDisableAccount(t *testing.T) {
s := RunBasicJetStreamServer()
defer s.Shutdown()
// Global in simple setup should be enabled already.
if !s.GlobalAccount().JetStreamEnabled() {
t.Fatalf("Expected to have jetstream enabled on global account")
}
if na := s.JetStreamNumAccounts(); na != 1 {
t.Fatalf("Expected 1 account, got %d", na)
}
if err := s.GlobalAccount().DisableJetStream(); err != nil {
t.Fatalf("Did not expect error on disabling account: %v", err)
}
if na := s.JetStreamNumAccounts(); na != 0 {
t.Fatalf("Expected no accounts, got %d", na)
}
// Make sure we unreserved resources.
if rm, rd, err := s.JetStreamReservedResources(); err != nil {
t.Fatalf("Unexpected error requesting jetstream reserved resources: %v", err)
} else if rm != 0 || rd != 0 {
t.Fatalf("Expected reserved memory and store to be 0, got %v and %v", server.FriendlyBytes(rm), server.FriendlyBytes(rd))
}
acc, _ := s.LookupOrRegisterAccount("$FOO")
if err := acc.EnableJetStream(nil); err != nil {
t.Fatalf("Did not expect error on enabling account: %v", err)
}
if na := s.JetStreamNumAccounts(); na != 1 {
t.Fatalf("Expected 1 account, got %d", na)
}
if err := acc.DisableJetStream(); err != nil {
t.Fatalf("Did not expect error on disabling account: %v", err)
}
if na := s.JetStreamNumAccounts(); na != 0 {
t.Fatalf("Expected no accounts, got %d", na)
}
// We should get error if disabling something not enabled.
acc, _ = s.LookupOrRegisterAccount("$BAR")
if err := acc.DisableJetStream(); err == nil {
t.Fatalf("Expected error on disabling account that was not enabled")
}
// Should get an error for trying to enable a non-registered account.
acc = server.NewAccount("$BAZ")
if err := acc.EnableJetStream(nil); err == nil {
t.Fatalf("Expected error on enabling account that was not registered")
}
}
func TestJetStreamAddStream(t *testing.T) {
cases := []struct {
name string
mconfig *server.StreamConfig
}{
{name: "MemoryStore",
mconfig: &server.StreamConfig{
Name: "foo",
Retention: server.LimitsPolicy,
MaxAge: time.Hour,
Storage: server.MemoryStorage,
Replicas: 1,
}},
{name: "FileStore",
mconfig: &server.StreamConfig{
Name: "foo",
Retention: server.LimitsPolicy,
MaxAge: time.Hour,
Storage: server.FileStorage,
Replicas: 1,
}},
}
for _, c := range cases {
t.Run(c.name, func(t *testing.T) {
s := RunBasicJetStreamServer()
defer s.Shutdown()
mset, err := s.GlobalAccount().AddStream(c.mconfig)
if err != nil {
t.Fatalf("Unexpected error adding stream: %v", err)
}
defer mset.Delete()
nc := clientConnectToServer(t, s)
defer nc.Close()
nc.Publish("foo", []byte("Hello World!"))
nc.Flush()
state := mset.State()
if state.Msgs != 1 {
t.Fatalf("Expected 1 message, got %d", state.Msgs)
}
if state.Bytes == 0 {
t.Fatalf("Expected non-zero bytes")
}
nc.Publish("foo", []byte("Hello World Again!"))
nc.Flush()
state = mset.State()
if state.Msgs != 2 {
t.Fatalf("Expected 2 messages, got %d", state.Msgs)
}
if err := mset.Delete(); err != nil {
t.Fatalf("Got an error deleting the stream: %v", err)
}
})
}
}
func TestJetStreamConsumerWithStartTime(t *testing.T) {
subj := "my_stream"
cases := []struct {
name string
mconfig *server.StreamConfig
}{
{"MemoryStore", &server.StreamConfig{Name: subj, Storage: server.MemoryStorage}},
{"FileStore", &server.StreamConfig{Name: subj, Storage: server.FileStorage}},
}
for _, c := range cases {
t.Run(c.name, func(t *testing.T) {
s := RunBasicJetStreamServer()
defer s.Shutdown()
if config := s.JetStreamConfig(); config != nil {
defer os.RemoveAll(config.StoreDir)
}
fsCfg := &server.FileStoreConfig{BlockSize: 100}
mset, err := s.GlobalAccount().AddStreamWithStore(c.mconfig, fsCfg)
if err != nil {
t.Fatalf("Unexpected error adding stream: %v", err)
}
defer mset.Delete()
nc := clientConnectToServer(t, s)
defer nc.Close()
toSend := 250
for i := 0; i < toSend; i++ {
sendStreamMsg(t, nc, subj, fmt.Sprintf("MSG: %d", i+1))
}
time.Sleep(10 * time.Millisecond)
startTime := time.Now()
for i := 0; i < toSend; i++ {
sendStreamMsg(t, nc, subj, fmt.Sprintf("MSG: %d", i+1))
}
if msgs := mset.State().Msgs; msgs != uint64(toSend*2) {
t.Fatalf("Expected %d messages, got %d", toSend*2, msgs)
}
o, err := mset.AddConsumer(&server.ConsumerConfig{
Durable: "d",
DeliverPolicy: server.DeliverByStartTime,
OptStartTime: &startTime,
AckPolicy: server.AckExplicit,
})
if err != nil {
t.Fatalf("Unexpected error: %v", err)
}
msg, err := nc.Request(o.RequestNextMsgSubject(), nil, time.Second)
if err != nil {
t.Fatalf("Unexpected error: %v", err)
}
sseq, dseq, _ := o.ReplyInfo(msg.Reply)
if dseq != 1 {
t.Fatalf("Expected delivered seq of 1, got %d", dseq)
}
if sseq != uint64(toSend+1) {
t.Fatalf("Expected to get store seq of %d, got %d", toSend+1, sseq)
}
})
}
}
// Test for https://github.com/nats-io/jetstream/issues/143
func TestJetStreamConsumerWithMultipleStartOptions(t *testing.T) {
subj := "my_stream"
cases := []struct {
name string
mconfig *server.StreamConfig
}{
{"MemoryStore", &server.StreamConfig{Name: subj, Subjects: []string{"foo.>"}, Storage: server.MemoryStorage}},
{"FileStore", &server.StreamConfig{Name: subj, Subjects: []string{"foo.>"}, Storage: server.FileStorage}},
}
for _, c := range cases {
t.Run(c.name, func(t *testing.T) {
s := RunBasicJetStreamServer()
defer s.Shutdown()
if config := s.JetStreamConfig(); config != nil {
defer os.RemoveAll(config.StoreDir)
}
mset, err := s.GlobalAccount().AddStream(c.mconfig)
if err != nil {
t.Fatalf("Unexpected error adding stream: %v", err)
}
defer mset.Delete()
nc := clientConnectToServer(t, s)
defer nc.Close()
obsReq := server.CreateConsumerRequest{
Stream: subj,
Config: server.ConsumerConfig{
Durable: "d",
DeliverPolicy: server.DeliverLast,
FilterSubject: "foo.22",
AckPolicy: server.AckExplicit,
},
}
req, err := json.Marshal(obsReq)
if err != nil {
t.Fatalf("Unexpected error: %v", err)
}
_, err = nc.Request(fmt.Sprintf(server.JetStreamCreateConsumerT, subj, "d"), req, time.Second)
if err != nil {
t.Fatalf("Unexpected error: %v", err)
}
nc.Close()
s.Shutdown()
})
}
}
func TestJetStreamConsumerMaxDeliveries(t *testing.T) {
cases := []struct {
name string
mconfig *server.StreamConfig
}{
{"MemoryStore", &server.StreamConfig{Name: "MY_WQ", Storage: server.MemoryStorage}},
{"FileStore", &server.StreamConfig{Name: "MY_WQ", Storage: server.FileStorage}},
}
for _, c := range cases {
t.Run(c.name, func(t *testing.T) {
s := RunBasicJetStreamServer()
defer s.Shutdown()
mset, err := s.GlobalAccount().AddStream(c.mconfig)
if err != nil {
t.Fatalf("Unexpected error adding stream: %v", err)
}
defer mset.Delete()
nc := clientConnectToServer(t, s)
defer nc.Close()
// Queue up our work item.
sendStreamMsg(t, nc, c.mconfig.Name, "Hello World!")
sub, _ := nc.SubscribeSync(nats.NewInbox())
defer sub.Unsubscribe()
nc.Flush()
maxDeliver := 5
ackWait := 10 * time.Millisecond
o, err := mset.AddConsumer(&server.ConsumerConfig{
DeliverSubject: sub.Subject,
AckPolicy: server.AckExplicit,
AckWait: ackWait,
MaxDeliver: maxDeliver,
})
if err != nil {
t.Fatalf("Expected no error, got %v", err)
}
defer o.Delete()
// Wait for redeliveries to pile up.
checkFor(t, 250*time.Millisecond, 10*time.Millisecond, func() error {
if nmsgs, _, _ := sub.Pending(); err != nil || nmsgs != maxDeliver {
return fmt.Errorf("Did not receive correct number of messages: %d vs %d", nmsgs, maxDeliver)
}
return nil
})
// Now wait a bit longer and make sure we do not have more than maxDeliveries.
time.Sleep(2 * ackWait)
if nmsgs, _, _ := sub.Pending(); err != nil || nmsgs != maxDeliver {
t.Fatalf("Did not receive correct number of messages: %d vs %d", nmsgs, maxDeliver)
}
})
}
}
func TestJetStreamPullConsumerDelayedFirstPullWithReplayOriginal(t *testing.T) {
cases := []struct {
name string
mconfig *server.StreamConfig
}{
{"MemoryStore", &server.StreamConfig{Name: "MY_WQ", Storage: server.MemoryStorage}},
{"FileStore", &server.StreamConfig{Name: "MY_WQ", Storage: server.FileStorage}},
}
for _, c := range cases {
t.Run(c.name, func(t *testing.T) {
s := RunBasicJetStreamServer()
defer s.Shutdown()
mset, err := s.GlobalAccount().AddStream(c.mconfig)
if err != nil {
t.Fatalf("Unexpected error adding stream: %v", err)
}
defer mset.Delete()
nc := clientConnectToServer(t, s)
defer nc.Close()
// Queue up our work item.
sendStreamMsg(t, nc, c.mconfig.Name, "Hello World!")
o, err := mset.AddConsumer(&server.ConsumerConfig{
Durable: "d",
AckPolicy: server.AckExplicit,
ReplayPolicy: server.ReplayOriginal,
})
if err != nil {
t.Fatalf("Expected no error, got %v", err)
}
defer o.Delete()
// Force delay here which triggers the bug.
time.Sleep(250 * time.Millisecond)
if _, err = nc.Request(o.RequestNextMsgSubject(), nil, time.Second); err != nil {
t.Fatalf("Unexpected error: %v", err)
}
})
}
}
func TestJetStreamAddStreamMaxMsgSize(t *testing.T) {
cases := []struct {
name string
mconfig *server.StreamConfig
}{
{name: "MemoryStore",
mconfig: &server.StreamConfig{
Name: "foo",
Retention: server.LimitsPolicy,
MaxAge: time.Hour,
Storage: server.MemoryStorage,
MaxMsgSize: 22,
Replicas: 1,
}},
{name: "FileStore",
mconfig: &server.StreamConfig{
Name: "foo",
Retention: server.LimitsPolicy,
MaxAge: time.Hour,
Storage: server.FileStorage,
MaxMsgSize: 22,
Replicas: 1,
}},
}
for _, c := range cases {
t.Run(c.name, func(t *testing.T) {
s := RunBasicJetStreamServer()
defer s.Shutdown()
mset, err := s.GlobalAccount().AddStream(c.mconfig)
if err != nil {
t.Fatalf("Unexpected error adding stream: %v", err)
}
defer mset.Delete()
nc := clientConnectToServer(t, s)
defer nc.Close()
if _, err := nc.Request("foo", []byte("Hello World!"), time.Second); err != nil {
t.Fatalf("Unexpected error: %v", err)
}
tooBig := []byte("1234567890ABCDEFGHIJKLMNOPQRSTUVWXYZ")
resp, err := nc.Request("foo", tooBig, time.Second)
if err != nil {
t.Fatalf("Unexpected error: %v", err)
}
if string(resp.Data) != "-ERR 'message size exceeds maximum allowed'" {
t.Fatalf("Expected to get an error for maximum message size, got %q", resp.Data)
}
})
}
}
func TestJetStreamAddStreamCanonicalNames(t *testing.T) {
s := RunBasicJetStreamServer()
defer s.Shutdown()
acc := s.GlobalAccount()
expectErr := func(_ *server.Stream, err error) {
t.Helper()
if err == nil || !strings.Contains(err.Error(), "can not contain") {
t.Fatalf("Expected error but got none")
}
}
expectErr(acc.AddStream(&server.StreamConfig{Name: "foo.bar"}))
expectErr(acc.AddStream(&server.StreamConfig{Name: "foo.bar."}))
expectErr(acc.AddStream(&server.StreamConfig{Name: "foo.*"}))
expectErr(acc.AddStream(&server.StreamConfig{Name: "foo.>"}))
expectErr(acc.AddStream(&server.StreamConfig{Name: "*"}))
expectErr(acc.AddStream(&server.StreamConfig{Name: ">"}))
expectErr(acc.AddStream(&server.StreamConfig{Name: "*>"}))
}
func TestJetStreamAddStreamBadSubjects(t *testing.T) {
s := RunBasicJetStreamServer()
defer s.Shutdown()
// Client for API requests.
nc := clientConnectToServer(t, s)
defer nc.Close()
expectAPIErr := func(cfg server.StreamConfig) {
t.Helper()
req, err := json.Marshal(cfg)
if err != nil {
t.Fatalf("Unexpected error: %v", err)
}
resp, _ := nc.Request(fmt.Sprintf(server.JetStreamCreateStreamT, cfg.Name), req, time.Second)
if string(resp.Data) != "-ERR 'malformed subject'" {
t.Fatalf("Did not get proper err response: %q", resp.Data)
}
}
expectAPIErr(server.StreamConfig{Name: "S", Subjects: []string{"foo.bar."}})
expectAPIErr(server.StreamConfig{Name: "S", Subjects: []string{".."}})
expectAPIErr(server.StreamConfig{Name: "S", Subjects: []string{".*"}})
expectAPIErr(server.StreamConfig{Name: "S", Subjects: []string{".>"}})
}
func TestJetStreamAddStreamOverlappingSubjects(t *testing.T) {
mconfig := &server.StreamConfig{
Name: "ok",
Subjects: []string{"foo", "bar", "baz.*", "foo.bar.baz.>"},
Storage: server.MemoryStorage,
}
s := RunBasicJetStreamServer()
defer s.Shutdown()
acc := s.GlobalAccount()
mset, err := acc.AddStream(mconfig)
if err != nil {
t.Fatalf("Unexpected error adding stream: %v", err)
}
defer mset.Delete()
expectErr := func(_ *server.Stream, err error) {
t.Helper()
if err == nil || !strings.Contains(err.Error(), "subjects overlap") {
t.Fatalf("Expected error but got none")
}
}
// Test that any overlapping subjects will fail.
expectErr(acc.AddStream(&server.StreamConfig{Name: "foo"}))
expectErr(acc.AddStream(&server.StreamConfig{Name: "a", Subjects: []string{"baz", "bar"}}))
expectErr(acc.AddStream(&server.StreamConfig{Name: "b", Subjects: []string{">"}}))
expectErr(acc.AddStream(&server.StreamConfig{Name: "c", Subjects: []string{"baz.33"}}))
expectErr(acc.AddStream(&server.StreamConfig{Name: "d", Subjects: []string{"*.33"}}))
expectErr(acc.AddStream(&server.StreamConfig{Name: "e", Subjects: []string{"*.>"}}))
expectErr(acc.AddStream(&server.StreamConfig{Name: "f", Subjects: []string{"foo.bar", "*.bar.>"}}))
}
func sendStreamMsg(t *testing.T, nc *nats.Conn, subject, msg string) {
t.Helper()
resp, _ := nc.Request(subject, []byte(msg), 100*time.Millisecond)
if resp == nil {
t.Fatalf("No response, possible timeout?")
}
if string(resp.Data) != server.OK {
t.Fatalf("Expected a JetStreamPubAck, got %q", resp.Data)
}
}
func expectOKResponse(t *testing.T, m *nats.Msg) {
t.Helper()
if m == nil {
t.Fatalf("No response, possible timeout?")
}
if string(m.Data) != server.OK {
t.Fatalf("Expected a JetStreamPubAck, got %q", m.Data)
}
}
func TestJetStreamBasicAckPublish(t *testing.T) {
cases := []struct {
name string
mconfig *server.StreamConfig
}{
{"MemoryStore", &server.StreamConfig{Name: "foo", Storage: server.MemoryStorage, Subjects: []string{"foo.*"}}},
{"FileStore", &server.StreamConfig{Name: "foo", Storage: server.FileStorage, Subjects: []string{"foo.*"}}},
}
for _, c := range cases {
t.Run(c.name, func(t *testing.T) {
s := RunBasicJetStreamServer()
defer s.Shutdown()
mset, err := s.GlobalAccount().AddStream(c.mconfig)
if err != nil {
t.Fatalf("Unexpected error adding stream: %v", err)
}
defer mset.Delete()
nc := clientConnectToServer(t, s)
defer nc.Close()
for i := 0; i < 50; i++ {
sendStreamMsg(t, nc, "foo.bar", "Hello World!")
}
state := mset.State()
if state.Msgs != 50 {
t.Fatalf("Expected 50 messages, got %d", state.Msgs)
}
})
}
}
func TestJetStreamNoAckStream(t *testing.T) {
cases := []struct {
name string
mconfig *server.StreamConfig
}{
{"MemoryStore", &server.StreamConfig{Name: "foo", Storage: server.MemoryStorage, NoAck: true}},
{"FileStore", &server.StreamConfig{Name: "foo", Storage: server.FileStorage, NoAck: true}},
}
for _, c := range cases {
t.Run(c.name, func(t *testing.T) {
s := RunBasicJetStreamServer()
defer s.Shutdown()
// We can use NoAck to suppress acks even when reply subjects are present.
mset, err := s.GlobalAccount().AddStream(c.mconfig)
if err != nil {
t.Fatalf("Unexpected error adding stream: %v", err)
}
defer mset.Delete()
nc := clientConnectToServer(t, s)
defer nc.Close()
if _, err := nc.Request("foo", []byte("Hello World!"), 25*time.Millisecond); err != nats.ErrTimeout {
t.Fatalf("Expected a timeout error and no response with acks suppressed")
}
state := mset.State()
if state.Msgs != 1 {
t.Fatalf("Expected 1 message, got %d", state.Msgs)
}
})
}
}
func TestJetStreamCreateConsumer(t *testing.T) {
cases := []struct {
name string
mconfig *server.StreamConfig
}{
{"MemoryStore", &server.StreamConfig{Name: "foo", Storage: server.MemoryStorage, Subjects: []string{"foo", "bar"}}},
{"FileStore", &server.StreamConfig{Name: "foo", Storage: server.FileStorage, Subjects: []string{"foo", "bar"}}},
}
for _, c := range cases {
t.Run(c.name, func(t *testing.T) {
s := RunBasicJetStreamServer()
defer s.Shutdown()
mset, err := s.GlobalAccount().AddStream(c.mconfig)
if err != nil {
t.Fatalf("Unexpected error adding stream: %v", err)
}
defer mset.Delete()
// Check for basic errors.
if _, err := mset.AddConsumer(nil); err == nil {
t.Fatalf("Expected an error for no config")
}
// No deliver subject, meaning its in pull mode, work queue mode means it is required to
// do explicit ack.
if _, err := mset.AddConsumer(&server.ConsumerConfig{}); err == nil {
t.Fatalf("Expected an error on work queue / pull mode without explicit ack mode")
}
// Check for delivery subject errors.
// Literal delivery subject required.
if _, err := mset.AddConsumer(&server.ConsumerConfig{DeliverSubject: "foo.*"}); err == nil {
t.Fatalf("Expected an error on bad delivery subject")
}
// Check for cycles
if _, err := mset.AddConsumer(&server.ConsumerConfig{DeliverSubject: "foo"}); err == nil {
t.Fatalf("Expected an error on delivery subject that forms a cycle")
}
if _, err := mset.AddConsumer(&server.ConsumerConfig{DeliverSubject: "bar"}); err == nil {
t.Fatalf("Expected an error on delivery subject that forms a cycle")
}
if _, err := mset.AddConsumer(&server.ConsumerConfig{DeliverSubject: "*"}); err == nil {
t.Fatalf("Expected an error on delivery subject that forms a cycle")
}
// StartPosition conflicts
now := time.Now()
if _, err := mset.AddConsumer(&server.ConsumerConfig{
DeliverSubject: "A",
OptStartSeq: 1,
OptStartTime: &now,
}); err == nil {
t.Fatalf("Expected an error on start position conflicts")
}
if _, err := mset.AddConsumer(&server.ConsumerConfig{
DeliverSubject: "A",
OptStartTime: &now,
}); err == nil {
t.Fatalf("Expected an error on start position conflicts")
}
// Non-Durables need to have subscription to delivery subject.
delivery := nats.NewInbox()
if _, err := mset.AddConsumer(&server.ConsumerConfig{DeliverSubject: delivery}); err == nil {
t.Fatalf("Expected an error on unsubscribed delivery subject")
}
// Pull-based consumers are required to be durable since we do not know when they should
// be cleaned up.
if _, err := mset.AddConsumer(&server.ConsumerConfig{AckPolicy: server.AckExplicit}); err == nil {
t.Fatalf("Expected an error on pull-based that is non-durable.")
}
nc := clientConnectToServer(t, s)
defer nc.Close()
sub, _ := nc.SubscribeSync(delivery)
defer sub.Unsubscribe()
nc.Flush()
// Filtered subjects can not be AckAll.
if _, err := mset.AddConsumer(&server.ConsumerConfig{
DeliverSubject: delivery,
FilterSubject: "foo",
AckPolicy: server.AckAll,
}); err == nil {
t.Fatalf("Expected an error on partitioned consumer with ack policy of all")
}
// This should work..
o, err := mset.AddConsumer(&server.ConsumerConfig{DeliverSubject: delivery})
if err != nil {
t.Fatalf("Expected no error with registered interest, got %v", err)
}
if err := mset.DeleteConsumer(o); err != nil {
t.Fatalf("Expected no error on delete, got %v", err)
}
})
}
}
func TestJetStreamBasicDeliverSubject(t *testing.T) {
cases := []struct {
name string
mconfig *server.StreamConfig
}{
{"MemoryStore", &server.StreamConfig{Name: "MSET", Storage: server.MemoryStorage, Subjects: []string{"foo.*"}}},
{"FileStore", &server.StreamConfig{Name: "MSET", Storage: server.FileStorage, Subjects: []string{"foo.*"}}},
}
for _, c := range cases {
t.Run(c.name, func(t *testing.T) {
s := RunBasicJetStreamServer()
defer s.Shutdown()
mset, err := s.GlobalAccount().AddStream(c.mconfig)
if err != nil {
t.Fatalf("Unexpected error adding stream: %v", err)
}
defer mset.Delete()
nc := clientConnectToServer(t, s)
defer nc.Close()
toSend := 100
sendSubj := "foo.bar"
for i := 1; i <= toSend; i++ {
sendStreamMsg(t, nc, sendSubj, strconv.Itoa(i))
}
state := mset.State()
if state.Msgs != uint64(toSend) {
t.Fatalf("Expected %d messages, got %d", toSend, state.Msgs)
}
// Now create an consumer. Use different connection.
nc2 := clientConnectToServer(t, s)
defer nc2.Close()
sub, _ := nc2.SubscribeSync(nats.NewInbox())
defer sub.Unsubscribe()
nc2.Flush()
o, err := mset.AddConsumer(&server.ConsumerConfig{DeliverSubject: sub.Subject})
if err != nil {
t.Fatalf("Expected no error with registered interest, got %v", err)
}
defer o.Delete()
// Check for our messages.
checkMsgs := func(seqOff int) {
t.Helper()
checkFor(t, 250*time.Millisecond, 10*time.Millisecond, func() error {
if nmsgs, _, _ := sub.Pending(); err != nil || nmsgs != toSend {
return fmt.Errorf("Did not receive correct number of messages: %d vs %d", nmsgs, toSend)
}
return nil
})
// Now let's check the messages
for i := 0; i < toSend; i++ {
m, _ := sub.NextMsg(time.Second)
// JetStream will have the subject match the stream subject, not delivery subject.
if m.Subject != sendSubj {
t.Fatalf("Expected original subject of %q, but got %q", sendSubj, m.Subject)
}
// Now check that reply subject exists and has a sequence as the last token.
if seq := o.SeqFromReply(m.Reply); seq != uint64(i+seqOff) {
t.Fatalf("Expected sequence of %d , got %d", i+seqOff, seq)
}
// Ack the message here.
m.Respond(nil)
}
}
checkMsgs(1)
// Now send more and make sure delivery picks back up.
for i := toSend + 1; i <= toSend*2; i++ {
sendStreamMsg(t, nc, sendSubj, strconv.Itoa(i))
}
state = mset.State()
if state.Msgs != uint64(toSend*2) {
t.Fatalf("Expected %d messages, got %d", toSend*2, state.Msgs)
}
checkMsgs(101)
checkSubEmpty := func() {
if nmsgs, _, _ := sub.Pending(); err != nil || nmsgs != 0 {
t.Fatalf("Expected sub to have no pending")
}
}
checkSubEmpty()
o.Delete()
// Now check for deliver last, deliver new and deliver by seq.
o, err = mset.AddConsumer(&server.ConsumerConfig{DeliverSubject: sub.Subject, DeliverPolicy: server.DeliverLast})
if err != nil {
t.Fatalf("Expected no error with registered interest, got %v", err)
}
defer o.Delete()
m, err := sub.NextMsg(time.Second)
if err != nil {
t.Fatalf("Did not get expected message, got %v", err)
}
// All Consumers start with sequence #1.
if seq := o.SeqFromReply(m.Reply); seq != 1 {
t.Fatalf("Expected sequence to be 1, but got %d", seq)
}
// Check that is is the last msg we sent though.
if mseq, _ := strconv.Atoi(string(m.Data)); mseq != 200 {
t.Fatalf("Expected messag sequence to be 200, but got %d", mseq)
}
checkSubEmpty()
o.Delete()
// Make sure we only got one message.
if m, err := sub.NextMsg(5 * time.Millisecond); err == nil {
t.Fatalf("Expected no msg, got %+v", m)
}
checkSubEmpty()
o.Delete()
// Now try by sequence number.
o, err = mset.AddConsumer(&server.ConsumerConfig{DeliverSubject: sub.Subject, DeliverPolicy: server.DeliverByStartSequence, OptStartSeq: 101})
if err != nil {
t.Fatalf("Expected no error with registered interest, got %v", err)
}
defer o.Delete()
checkMsgs(1)
// Now do push based queue-subscribers
sub, _ = nc2.QueueSubscribeSync("_qg_", "dev")
defer sub.Unsubscribe()
nc2.Flush()
o, err = mset.AddConsumer(&server.ConsumerConfig{DeliverSubject: sub.Subject})
if err != nil {
t.Fatalf("Expected no error with registered interest, got %v", err)
}
defer o.Delete()
// Since we sent another batch need check to be looking for 2x.
toSend *= 2
checkMsgs(1)
})
}
}
func workerModeConfig(name string) *server.ConsumerConfig {
return &server.ConsumerConfig{Durable: name, AckPolicy: server.AckExplicit}
}
func TestJetStreamBasicWorkQueue(t *testing.T) {
cases := []struct {
name string
mconfig *server.StreamConfig
}{
{"MemoryStore", &server.StreamConfig{Name: "MY_MSG_SET", Storage: server.MemoryStorage, Subjects: []string{"foo", "bar"}}},
{"FileStore", &server.StreamConfig{Name: "MY_MSG_SET", Storage: server.FileStorage, Subjects: []string{"foo", "bar"}}},
}
for _, c := range cases {
t.Run(c.name, func(t *testing.T) {
s := RunBasicJetStreamServer()
defer s.Shutdown()
mset, err := s.GlobalAccount().AddStream(c.mconfig)
if err != nil {
t.Fatalf("Unexpected error adding stream: %v", err)
}
defer mset.Delete()
// Create basic work queue mode consumer.
oname := "WQ"
o, err := mset.AddConsumer(workerModeConfig(oname))
if err != nil {
t.Fatalf("Expected no error with registered interest, got %v", err)
}
defer o.Delete()
if o.NextSeq() != 1 {
t.Fatalf("Expected to be starting at sequence 1")
}
nc := clientConnectToServer(t, s)
defer nc.Close()
// Now load up some messages.
toSend := 100
sendSubj := "bar"
for i := 0; i < toSend; i++ {
sendStreamMsg(t, nc, sendSubj, "Hello World!")
}
state := mset.State()
if state.Msgs != uint64(toSend) {
t.Fatalf("Expected %d messages, got %d", toSend, state.Msgs)
}
getNext := func(seqno int) {
t.Helper()
nextMsg, err := nc.Request(o.RequestNextMsgSubject(), nil, time.Second)
if err != nil {
t.Fatalf("Unexpected error for seq %d: %v", seqno, err)
}
if nextMsg.Subject != "bar" {
t.Fatalf("Expected subject of %q, got %q", "bar", nextMsg.Subject)
}
if seq := o.SeqFromReply(nextMsg.Reply); seq != uint64(seqno) {
t.Fatalf("Expected sequence of %d , got %d", seqno, seq)
}
}
// Make sure we can get the messages already there.
for i := 1; i <= toSend; i++ {
getNext(i)
}
// Now we want to make sure we can get a message that is published to the message
// set as we are waiting for it.
nextDelay := 50 * time.Millisecond
go func() {
time.Sleep(nextDelay)
nc.Request(sendSubj, []byte("Hello World!"), 100*time.Millisecond)
}()
start := time.Now()
getNext(toSend + 1)
if time.Since(start) < nextDelay {
t.Fatalf("Received message too quickly")
}
// Now do same thing but combine waiting for new ones with sending.
go func() {
time.Sleep(nextDelay)
for i := 0; i < toSend; i++ {
nc.Request(sendSubj, []byte("Hello World!"), 50*time.Millisecond)
time.Sleep(time.Millisecond)
}
}()
for i := toSend + 2; i < toSend*2+2; i++ {
getNext(i)
}
})
}
}
func TestJetStreamSubjectFiltering(t *testing.T) {
cases := []struct {
name string
mconfig *server.StreamConfig
}{
{"MemoryStore", &server.StreamConfig{Name: "MSET", Storage: server.MemoryStorage, Subjects: []string{"foo.*"}}},
{"FileStore", &server.StreamConfig{Name: "MSET", Storage: server.FileStorage, Subjects: []string{"foo.*"}}},
}
for _, c := range cases {
t.Run(c.name, func(t *testing.T) {
s := RunBasicJetStreamServer()
defer s.Shutdown()
mset, err := s.GlobalAccount().AddStream(c.mconfig)
if err != nil {
t.Fatalf("Unexpected error adding stream: %v", err)
}
defer mset.Delete()
nc := clientConnectToServer(t, s)
defer nc.Close()
toSend := 50
subjA := "foo.A"
subjB := "foo.B"
for i := 0; i < toSend; i++ {
sendStreamMsg(t, nc, subjA, "Hello World!")
sendStreamMsg(t, nc, subjB, "Hello World!")
}
state := mset.State()
if state.Msgs != uint64(toSend*2) {
t.Fatalf("Expected %d messages, got %d", toSend*2, state.Msgs)
}
delivery := nats.NewInbox()
sub, _ := nc.SubscribeSync(delivery)
defer sub.Unsubscribe()
nc.Flush()
o, err := mset.AddConsumer(&server.ConsumerConfig{DeliverSubject: delivery, FilterSubject: subjB})
if err != nil {
t.Fatalf("Expected no error with registered interest, got %v", err)
}
defer o.Delete()
// Now let's check the messages
for i := 1; i <= toSend; i++ {
m, err := sub.NextMsg(time.Second)
if err != nil {
t.Fatalf("Unexpected error: %v", err)
}
// JetStream will have the subject match the stream subject, not delivery subject.
// We want these to only be subjB.
if m.Subject != subjB {
t.Fatalf("Expected original subject of %q, but got %q", subjB, m.Subject)
}
// Now check that reply subject exists and has a sequence as the last token.
if seq := o.SeqFromReply(m.Reply); seq != uint64(i) {
t.Fatalf("Expected sequence of %d , got %d", i, seq)
}
// Ack the message here.
m.Respond(nil)
}
if nmsgs, _, _ := sub.Pending(); err != nil || nmsgs != 0 {
t.Fatalf("Expected sub to have no pending")
}
})
}
}
func TestJetStreamWorkQueueSubjectFiltering(t *testing.T) {
cases := []struct {
name string
mconfig *server.StreamConfig
}{
{"MemoryStore", &server.StreamConfig{Name: "MY_MSG_SET", Storage: server.MemoryStorage, Subjects: []string{"foo.*"}}},
{"FileStore", &server.StreamConfig{Name: "MY_MSG_SET", Storage: server.FileStorage, Subjects: []string{"foo.*"}}},
}
for _, c := range cases {
t.Run(c.name, func(t *testing.T) {
s := RunBasicJetStreamServer()
defer s.Shutdown()
mset, err := s.GlobalAccount().AddStream(c.mconfig)
if err != nil {
t.Fatalf("Unexpected error adding stream: %v", err)
}
defer mset.Delete()
nc := clientConnectToServer(t, s)
defer nc.Close()
toSend := 50
subjA := "foo.A"
subjB := "foo.B"
for i := 0; i < toSend; i++ {
sendStreamMsg(t, nc, subjA, "Hello World!")
sendStreamMsg(t, nc, subjB, "Hello World!")
}
state := mset.State()
if state.Msgs != uint64(toSend*2) {
t.Fatalf("Expected %d messages, got %d", toSend*2, state.Msgs)
}
oname := "WQ"
o, err := mset.AddConsumer(&server.ConsumerConfig{Durable: oname, FilterSubject: subjA, AckPolicy: server.AckExplicit})
if err != nil {
t.Fatalf("Expected no error with registered interest, got %v", err)
}
defer o.Delete()
if o.NextSeq() != 1 {
t.Fatalf("Expected to be starting at sequence 1")
}
getNext := func(seqno int) {
t.Helper()
nextMsg, err := nc.Request(o.RequestNextMsgSubject(), nil, time.Second)
if err != nil {
t.Fatalf("Unexpected error: %v", err)
}
if nextMsg.Subject != subjA {
t.Fatalf("Expected subject of %q, got %q", subjA, nextMsg.Subject)
}
if seq := o.SeqFromReply(nextMsg.Reply); seq != uint64(seqno) {
t.Fatalf("Expected sequence of %d , got %d", seqno, seq)
}
nextMsg.Respond(nil)
}
// Make sure we can get the messages already there.
for i := 1; i <= toSend; i++ {
getNext(i)
}
})
}
}
func TestJetStreamWildcardSubjectFiltering(t *testing.T) {
cases := []struct {
name string
mconfig *server.StreamConfig
}{
{"MemoryStore", &server.StreamConfig{Name: "ORDERS", Storage: server.MemoryStorage, Subjects: []string{"orders.*.*"}}},
{"FileStore", &server.StreamConfig{Name: "ORDERS", Storage: server.FileStorage, Subjects: []string{"orders.*.*"}}},
}
for _, c := range cases {
t.Run(c.name, func(t *testing.T) {
s := RunBasicJetStreamServer()
defer s.Shutdown()
mset, err := s.GlobalAccount().AddStream(c.mconfig)
if err != nil {
t.Fatalf("Unexpected error adding stream: %v", err)
}
defer mset.Delete()
nc := clientConnectToServer(t, s)
defer nc.Close()
toSend := 100
for i := 1; i <= toSend; i++ {
subj := fmt.Sprintf("orders.%d.%s", i, "NEW")
sendStreamMsg(t, nc, subj, "new order")
}
// Randomly move 25 to shipped.
toShip := 25
shipped := make(map[int]bool)
for i := 0; i < toShip; {
orderId := rand.Intn(toSend-1) + 1
if shipped[orderId] {
continue
}
subj := fmt.Sprintf("orders.%d.%s", orderId, "SHIPPED")
sendStreamMsg(t, nc, subj, "shipped order")
shipped[orderId] = true
i++
}
state := mset.State()
if state.Msgs != uint64(toSend+toShip) {
t.Fatalf("Expected %d messages, got %d", toSend+toShip, state.Msgs)
}
delivery := nats.NewInbox()
sub, _ := nc.SubscribeSync(delivery)
defer sub.Unsubscribe()
nc.Flush()
// Get all shipped.
o, err := mset.AddConsumer(&server.ConsumerConfig{DeliverSubject: delivery, FilterSubject: "orders.*.SHIPPED"})
if err != nil {
t.Fatalf("Expected no error with registered interest, got %v", err)
}
defer o.Delete()
checkFor(t, time.Second, 25*time.Millisecond, func() error {
if nmsgs, _, _ := sub.Pending(); err != nil || nmsgs != toShip {
return fmt.Errorf("Did not receive correct number of messages: %d vs %d", nmsgs, toShip)
}
return nil
})
for nmsgs, _, _ := sub.Pending(); nmsgs > 0; nmsgs, _, _ = sub.Pending() {
sub.NextMsg(time.Second)
}
if nmsgs, _, _ := sub.Pending(); nmsgs != 0 {
t.Fatalf("Expected no pending, got %d", nmsgs)
}
// Get all new
o, err = mset.AddConsumer(&server.ConsumerConfig{DeliverSubject: delivery, FilterSubject: "orders.*.NEW"})
if err != nil {
t.Fatalf("Expected no error with registered interest, got %v", err)
}
defer o.Delete()
checkFor(t, time.Second, 25*time.Millisecond, func() error {
if nmsgs, _, _ := sub.Pending(); err != nil || nmsgs != toSend {
return fmt.Errorf("Did not receive correct number of messages: %d vs %d", nmsgs, toSend)
}
return nil
})
for nmsgs, _, _ := sub.Pending(); nmsgs > 0; nmsgs, _, _ = sub.Pending() {
sub.NextMsg(time.Second)
}
if nmsgs, _, _ := sub.Pending(); nmsgs != 0 {
t.Fatalf("Expected no pending, got %d", nmsgs)
}
// Now grab a single orderId that has shipped, so we should have two messages.
var orderId int
for orderId = range shipped {
break
}
subj := fmt.Sprintf("orders.%d.*", orderId)
o, err = mset.AddConsumer(&server.ConsumerConfig{DeliverSubject: delivery, FilterSubject: subj})
if err != nil {
t.Fatalf("Expected no error with registered interest, got %v", err)
}
defer o.Delete()
checkFor(t, time.Second, 25*time.Millisecond, func() error {
if nmsgs, _, _ := sub.Pending(); err != nil || nmsgs != 2 {
return fmt.Errorf("Did not receive correct number of messages: %d vs %d", nmsgs, 2)
}
return nil
})
})
}
}
func TestJetStreamWorkQueueAckAndNext(t *testing.T) {
cases := []struct {
name string
mconfig *server.StreamConfig
}{
{"MemoryStore", &server.StreamConfig{Name: "MY_MSG_SET", Storage: server.MemoryStorage, Subjects: []string{"foo", "bar"}}},
{"FileStore", &server.StreamConfig{Name: "MY_MSG_SET", Storage: server.FileStorage, Subjects: []string{"foo", "bar"}}},
}
for _, c := range cases {
t.Run(c.name, func(t *testing.T) {
s := RunBasicJetStreamServer()
defer s.Shutdown()
mset, err := s.GlobalAccount().AddStream(c.mconfig)
if err != nil {
t.Fatalf("Unexpected error adding stream: %v", err)
}
defer mset.Delete()
// Create basic work queue mode consumer.
oname := "WQ"
o, err := mset.AddConsumer(workerModeConfig(oname))
if err != nil {
t.Fatalf("Expected no error with registered interest, got %v", err)
}
defer o.Delete()
if o.NextSeq() != 1 {
t.Fatalf("Expected to be starting at sequence 1")
}
nc := clientConnectToServer(t, s)
defer nc.Close()
// Now load up some messages.
toSend := 100
sendSubj := "bar"
for i := 0; i < toSend; i++ {
sendStreamMsg(t, nc, sendSubj, "Hello World!")
}
state := mset.State()
if state.Msgs != uint64(toSend) {
t.Fatalf("Expected %d messages, got %d", toSend, state.Msgs)
}
sub, _ := nc.SubscribeSync(nats.NewInbox())
defer sub.Unsubscribe()
// Kick things off.
// For normal work queue semantics, you send requests to the subject with stream and consumer name.
// We will do this to start it off then use ack+next to get other messages.
nc.PublishRequest(o.RequestNextMsgSubject(), sub.Subject, nil)
for i := 0; i < toSend; i++ {
m, err := sub.NextMsg(time.Second)
if err != nil {
t.Fatalf("Unexpected error waiting for messages: %v", err)
}
nc.PublishRequest(m.Reply, sub.Subject, server.AckNext)
}
})
}
}
func TestJetStreamWorkQueueRequestBatch(t *testing.T) {
cases := []struct {
name string
mconfig *server.StreamConfig
}{
{"MemoryStore", &server.StreamConfig{Name: "MY_MSG_SET", Storage: server.MemoryStorage, Subjects: []string{"foo", "bar"}}},
{"FileStore", &server.StreamConfig{Name: "MY_MSG_SET", Storage: server.FileStorage, Subjects: []string{"foo", "bar"}}},
}
for _, c := range cases {
t.Run(c.name, func(t *testing.T) {
s := RunBasicJetStreamServer()
defer s.Shutdown()
mset, err := s.GlobalAccount().AddStream(c.mconfig)
if err != nil {
t.Fatalf("Unexpected error adding stream: %v", err)
}
defer mset.Delete()
// Create basic work queue mode consumer.
oname := "WQ"
o, err := mset.AddConsumer(workerModeConfig(oname))
if err != nil {
t.Fatalf("Expected no error with registered interest, got %v", err)
}
defer o.Delete()
if o.NextSeq() != 1 {
t.Fatalf("Expected to be starting at sequence 1")
}
nc := clientConnectToServer(t, s)
defer nc.Close()
// Now load up some messages.
toSend := 100
sendSubj := "bar"
for i := 0; i < toSend; i++ {
sendStreamMsg(t, nc, sendSubj, "Hello World!")
}
state := mset.State()
if state.Msgs != uint64(toSend) {
t.Fatalf("Expected %d messages, got %d", toSend, state.Msgs)
}
sub, _ := nc.SubscribeSync(nats.NewInbox())
defer sub.Unsubscribe()
// For normal work queue semantics, you send requests to the subject with stream and consumer name.
// We will do this to start it off then use ack+next to get other messages.
// Kick things off with batch size of 50.
batchSize := 50
nc.PublishRequest(o.RequestNextMsgSubject(), sub.Subject, []byte(strconv.Itoa(batchSize)))
// We should receive batchSize with no acks or additional requests.
checkFor(t, 250*time.Millisecond, 10*time.Millisecond, func() error {
if nmsgs, _, _ := sub.Pending(); err != nil || nmsgs != batchSize {
return fmt.Errorf("Did not receive correct number of messages: %d vs %d", nmsgs, batchSize)
}
return nil
})
})
}
}
func TestJetStreamWorkQueueRetentionStream(t *testing.T) {
cases := []struct {
name string
mconfig *server.StreamConfig
}{
{name: "MemoryStore", mconfig: &server.StreamConfig{
Name: "MWQ",
Storage: server.MemoryStorage,
Subjects: []string{"MY_WORK_QUEUE.*"},
Retention: server.WorkQueuePolicy},
},
{name: "FileStore", mconfig: &server.StreamConfig{
Name: "MWQ",
Storage: server.FileStorage,
Subjects: []string{"MY_WORK_QUEUE.*"},
Retention: server.WorkQueuePolicy},
},
}
for _, c := range cases {
t.Run(c.name, func(t *testing.T) {
s := RunBasicJetStreamServer()
defer s.Shutdown()
mset, err := s.GlobalAccount().AddStream(c.mconfig)
if err != nil {
t.Fatalf("Unexpected error adding stream: %v", err)
}
defer mset.Delete()
// This type of stream has restrictions which we will test here.
// DeliverAll is only start mode allowed.
if _, err := mset.AddConsumer(&server.ConsumerConfig{DeliverPolicy: server.DeliverLast}); err == nil {
t.Fatalf("Expected an error with anything but DeliverAll")
}
// We will create a non-partitioned consumer. This should succeed.
o, err := mset.AddConsumer(&server.ConsumerConfig{Durable: "PBO", AckPolicy: server.AckExplicit})
if err != nil {
t.Fatalf("Expected no error, got %v", err)
}
defer o.Delete()
// Now if we create another this should fail, only can have one non-partitioned.
if _, err := mset.AddConsumer(&server.ConsumerConfig{}); err == nil {
t.Fatalf("Expected an error on attempt for second consumer for a workqueue")
}
o.Delete()
if numo := mset.NumConsumers(); numo != 0 {
t.Fatalf("Expected to have zero consumers, got %d", numo)
}
// Now add in an consumer that has a partition.
pindex := 1
pConfig := func(pname string) *server.ConsumerConfig {
dname := fmt.Sprintf("PPBO-%d", pindex)
pindex += 1
return &server.ConsumerConfig{Durable: dname, FilterSubject: pname, AckPolicy: server.AckExplicit}
}
o, err = mset.AddConsumer(pConfig("MY_WORK_QUEUE.A"))
if err != nil {
t.Fatalf("Expected no error, got %v", err)
}
defer o.Delete()
// Now creating another with separate partition should work.
o2, err := mset.AddConsumer(pConfig("MY_WORK_QUEUE.B"))
if err != nil {
t.Fatalf("Expected no error, got %v", err)
}
defer o2.Delete()
// Anything that would overlap should fail though.
if _, err := mset.AddConsumer(pConfig(">")); err == nil {
t.Fatalf("Expected an error on attempt for partitioned consumer for a workqueue")
}
if _, err := mset.AddConsumer(pConfig("MY_WORK_QUEUE.A")); err == nil {
t.Fatalf("Expected an error on attempt for partitioned consumer for a workqueue")
}
if _, err := mset.AddConsumer(pConfig("MY_WORK_QUEUE.A")); err == nil {
t.Fatalf("Expected an error on attempt for partitioned consumer for a workqueue")
}
o3, err := mset.AddConsumer(pConfig("MY_WORK_QUEUE.C"))
if err != nil {
t.Fatalf("Expected no error, got %v", err)
}
o.Delete()
o2.Delete()
o3.Delete()
// Push based will be allowed now, including ephemerals.
// They can not overlap etc meaning same rules as above apply.
o4, err := mset.AddConsumer(&server.ConsumerConfig{
Durable: "DURABLE",
DeliverSubject: "SOME.SUBJ",
AckPolicy: server.AckExplicit,
})
if err != nil {
t.Fatalf("Unexpected Error: %v", err)
}
defer o4.Delete()
// Now try to create an ephemeral
nc := clientConnectToServer(t, s)
defer nc.Close()
sub, _ := nc.SubscribeSync(nats.NewInbox())
defer sub.Unsubscribe()
nc.Flush()
// This should fail at first due to conflict above.
ephCfg := &server.ConsumerConfig{DeliverSubject: sub.Subject, AckPolicy: server.AckExplicit}
if _, err := mset.AddConsumer(ephCfg); err == nil {
t.Fatalf("Expected an error ")
}
// Delete of o4 should clear.
o4.Delete()
o5, err := mset.AddConsumer(ephCfg)
if err != nil {
t.Fatalf("Unexpected Error: %v", err)
}
defer o5.Delete()
})
}
}
func TestJetStreamWorkQueueAckWaitRedelivery(t *testing.T) {
cases := []struct {
name string
mconfig *server.StreamConfig
}{
{"MemoryStore", &server.StreamConfig{Name: "MY_WQ", Storage: server.MemoryStorage, Retention: server.WorkQueuePolicy}},
{"FileStore", &server.StreamConfig{Name: "MY_WQ", Storage: server.FileStorage, Retention: server.WorkQueuePolicy}},
}
for _, c := range cases {
t.Run(c.name, func(t *testing.T) {
s := RunBasicJetStreamServer()
defer s.Shutdown()
mset, err := s.GlobalAccount().AddStream(c.mconfig)
if err != nil {
t.Fatalf("Unexpected error adding stream: %v", err)
}
defer mset.Delete()
nc := clientConnectToServer(t, s)
defer nc.Close()
// Now load up some messages.
toSend := 100
for i := 0; i < toSend; i++ {
sendStreamMsg(t, nc, c.mconfig.Name, "Hello World!")
}
state := mset.State()
if state.Msgs != uint64(toSend) {
t.Fatalf("Expected %d messages, got %d", toSend, state.Msgs)
}
ackWait := 100 * time.Millisecond
o, err := mset.AddConsumer(&server.ConsumerConfig{Durable: "PBO", AckPolicy: server.AckExplicit, AckWait: ackWait})
if err != nil {
t.Fatalf("Expected no error, got %v", err)
}
defer o.Delete()
sub, _ := nc.SubscribeSync(nats.NewInbox())
defer sub.Unsubscribe()
reqNextMsgSubj := o.RequestNextMsgSubject()
// Consume all the messages. But do not ack.
for i := 0; i < toSend; i++ {
nc.PublishRequest(reqNextMsgSubj, sub.Subject, nil)
if _, err := sub.NextMsg(time.Second); err != nil {
t.Fatalf("Unexpected error waiting for messages: %v", err)
}
}
if nmsgs, _, _ := sub.Pending(); err != nil || nmsgs != 0 {
t.Fatalf("Did not consume all messages, still have %d", nmsgs)
}
// All messages should still be there.
state = mset.State()
if int(state.Msgs) != toSend {
t.Fatalf("Expected %d messages, got %d", toSend, state.Msgs)
}
// Now consume and ack.
for i := 1; i <= toSend; i++ {
nc.PublishRequest(reqNextMsgSubj, sub.Subject, nil)
m, err := sub.NextMsg(time.Second)
if err != nil {
t.Fatalf("Unexpected error waiting for message[%d]: %v", i, err)
}
sseq, dseq, dcount := o.ReplyInfo(m.Reply)
if sseq != uint64(i) {
t.Fatalf("Expected set sequence of %d , got %d", i, sseq)
}
// Delivery sequences should always increase.
if dseq != uint64(toSend+i) {
t.Fatalf("Expected delivery sequence of %d , got %d", toSend+i, dseq)
}
if dcount == 1 {
t.Fatalf("Expected these to be marked as redelivered")
}
// Ack the message here.
m.Respond(nil)
}
if nmsgs, _, _ := sub.Pending(); err != nil || nmsgs != 0 {
t.Fatalf("Did not consume all messages, still have %d", nmsgs)
}
// Flush acks
nc.Flush()
// Now check the mset as well, since we have a WorkQueue retention policy this should be empty.
if state := mset.State(); state.Msgs != 0 {
t.Fatalf("Expected no messages, got %d", state.Msgs)
}
})
}
}
func TestJetStreamWorkQueueNakRedelivery(t *testing.T) {
cases := []struct {
name string
mconfig *server.StreamConfig
}{
{"MemoryStore", &server.StreamConfig{Name: "MY_WQ", Storage: server.MemoryStorage, Retention: server.WorkQueuePolicy}},
{"FileStore", &server.StreamConfig{Name: "MY_WQ", Storage: server.FileStorage, Retention: server.WorkQueuePolicy}},
}
for _, c := range cases {
t.Run(c.name, func(t *testing.T) {
s := RunBasicJetStreamServer()
defer s.Shutdown()
mset, err := s.GlobalAccount().AddStream(c.mconfig)
if err != nil {
t.Fatalf("Unexpected error adding stream: %v", err)
}
defer mset.Delete()
nc := clientConnectToServer(t, s)
defer nc.Close()
// Now load up some messages.
toSend := 10
for i := 0; i < toSend; i++ {
sendStreamMsg(t, nc, c.mconfig.Name, "Hello World!")
}
state := mset.State()
if state.Msgs != uint64(toSend) {
t.Fatalf("Expected %d messages, got %d", toSend, state.Msgs)
}
o, err := mset.AddConsumer(&server.ConsumerConfig{Durable: "PBO", AckPolicy: server.AckExplicit})
if err != nil {
t.Fatalf("Expected no error, got %v", err)
}
defer o.Delete()
getMsg := func(sseq, dseq int) *nats.Msg {
t.Helper()
m, err := nc.Request(o.RequestNextMsgSubject(), nil, time.Second)
if err != nil {
t.Fatalf("Unexpected error: %v", err)
}
rsseq, rdseq, _ := o.ReplyInfo(m.Reply)
if rdseq != uint64(dseq) {
t.Fatalf("Expected delivered sequence of %d , got %d", dseq, rdseq)
}
if rsseq != uint64(sseq) {
t.Fatalf("Expected store sequence of %d , got %d", sseq, rsseq)
}
return m
}
for i := 1; i <= 5; i++ {
m := getMsg(i, i)
// Ack the message here.
m.Respond(nil)
}
// Grab #6
m := getMsg(6, 6)
// NAK this one.
m.Respond(server.AckNak)
// When we request again should be store sequence 6 again.
getMsg(6, 7)
// Then we should get 7, 8, etc.
getMsg(7, 8)
getMsg(8, 9)
})
}
}
func TestJetStreamWorkQueueWorkingIndicator(t *testing.T) {
cases := []struct {
name string
mconfig *server.StreamConfig
}{
{"MemoryStore", &server.StreamConfig{Name: "MY_WQ", Storage: server.MemoryStorage, Retention: server.WorkQueuePolicy}},
{"FileStore", &server.StreamConfig{Name: "MY_WQ", Storage: server.FileStorage, Retention: server.WorkQueuePolicy}},
}
for _, c := range cases {
t.Run(c.name, func(t *testing.T) {
s := RunBasicJetStreamServer()
defer s.Shutdown()
mset, err := s.GlobalAccount().AddStream(c.mconfig)
if err != nil {
t.Fatalf("Unexpected error adding stream: %v", err)
}
defer mset.Delete()
nc := clientConnectToServer(t, s)
defer nc.Close()
// Now load up some messages.
toSend := 2
for i := 0; i < toSend; i++ {
sendStreamMsg(t, nc, c.mconfig.Name, "Hello World!")
}
state := mset.State()
if state.Msgs != uint64(toSend) {
t.Fatalf("Expected %d messages, got %d", toSend, state.Msgs)
}
ackWait := 50 * time.Millisecond
o, err := mset.AddConsumer(&server.ConsumerConfig{Durable: "PBO", AckPolicy: server.AckExplicit, AckWait: ackWait})
if err != nil {
t.Fatalf("Expected no error, got %v", err)
}
defer o.Delete()
getMsg := func(sseq, dseq int) *nats.Msg {
t.Helper()
m, err := nc.Request(o.RequestNextMsgSubject(), nil, time.Second)
if err != nil {
t.Fatalf("Unexpected error: %v", err)
}
rsseq, rdseq, _ := o.ReplyInfo(m.Reply)
if rdseq != uint64(dseq) {
t.Fatalf("Expected delivered sequence of %d , got %d", dseq, rdseq)
}
if rsseq != uint64(sseq) {
t.Fatalf("Expected store sequence of %d , got %d", sseq, rsseq)
}
return m
}
getMsg(1, 1)
// Now wait past ackWait
time.Sleep(ackWait * 2)
// We should get 1 back.
m := getMsg(1, 2)
m.Respond(server.AckProgress)
nc.Flush()
// Now let's take longer than ackWait to process but signal we are working on the message.
timeout := time.Now().Add(5 * ackWait)
for time.Now().Before(timeout) {
time.Sleep(ackWait / 4)
m.Respond(server.AckProgress)
}
// We should get 2 here, not 1 since we have indicated we are working on it.
m2 := getMsg(2, 3)
time.Sleep(ackWait / 2)
m2.Respond(server.AckProgress)
// Now should get 1 back then 2.
m = getMsg(1, 4)
m.Respond(nil)
getMsg(2, 5)
})
}
}
func TestJetStreamPullConsumerRemoveInterest(t *testing.T) {
s := RunBasicJetStreamServer()
defer s.Shutdown()
if config := s.JetStreamConfig(); config != nil {
defer os.RemoveAll(config.StoreDir)
}
mname := "MYS"
mset, err := s.GlobalAccount().AddStream(&server.StreamConfig{Name: mname, Storage: server.MemoryStorage})
if err != nil {
t.Fatalf("Unexpected error adding stream: %v", err)
}
defer mset.Delete()
wcfg := &server.ConsumerConfig{Durable: "worker", AckPolicy: server.AckExplicit}
o, err := mset.AddConsumer(wcfg)
if err != nil {
t.Fatalf("Expected no error with registered interest, got %v", err)
}
rqn := o.RequestNextMsgSubject()
defer o.Delete()
nc := clientConnectToServer(t, s)
defer nc.Close()
// Ask for a message even though one is not there. This will queue us up for waiting.
if _, err := nc.Request(rqn, nil, 10*time.Millisecond); err == nil {
t.Fatalf("Expected an error, got none")
}
// This is using new style request mechanism. so drop the connection itself to get rid of interest.
nc.Close()
nc = clientConnectToServer(t, s)
defer nc.Close()
// Send a message
sendStreamMsg(t, nc, mname, "Hello World!")
msg, err := nc.Request(rqn, nil, time.Second)
if err != nil {
t.Fatalf("Unexpected error: %v", err)
}
_, dseq, dc := o.ReplyInfo(msg.Reply)
if dseq != 1 {
t.Fatalf("Expected consumer sequence of 1, got %d", dseq)
}
if dc != 1 {
t.Fatalf("Expected delivery count of 1, got %d", dc)
}
// Now do old school request style and more than one waiting.
nc = clientConnectWithOldRequest(t, s)
defer nc.Close()
// Now queue up 10 waiting via failed requests.
for i := 0; i < 10; i++ {
if _, err := nc.Request(rqn, nil, 1*time.Millisecond); err == nil {
t.Fatalf("Expected an error, got none")
}
}
// Send a second message
sendStreamMsg(t, nc, mname, "Hello World!")
msg, err = nc.Request(rqn, nil, time.Second)
if err != nil {
t.Fatalf("Unexpected error: %v", err)
}
_, dseq, dc = o.ReplyInfo(msg.Reply)
if dseq != 2 {
t.Fatalf("Expected consumer sequence of 2, got %d", dseq)
}
if dc != 1 {
t.Fatalf("Expected delivery count of 1, got %d", dc)
}
}
func TestJetStreamConsumerMaxDeliveryAndServerRestart(t *testing.T) {
s := RunBasicJetStreamServer()
defer s.Shutdown()
if config := s.JetStreamConfig(); config != nil {
defer os.RemoveAll(config.StoreDir)
}
mname := "MYS"
mset, err := s.GlobalAccount().AddStream(&server.StreamConfig{Name: mname, Storage: server.FileStorage})
if err != nil {
t.Fatalf("Unexpected error adding stream: %v", err)
}
defer mset.Delete()
dsubj := "D.TO"
max := 4
o, err := mset.AddConsumer(&server.ConsumerConfig{
Durable: "TO",
DeliverSubject: dsubj,
AckPolicy: server.AckExplicit,
AckWait: 25 * time.Millisecond,
MaxDeliver: max,
})
defer o.Delete()
nc := clientConnectToServer(t, s)
defer nc.Close()
sub, _ := nc.SubscribeSync(dsubj)
nc.Flush()
defer sub.Unsubscribe()
// Send one message.
sendStreamMsg(t, nc, mname, "order-1")
checkSubPending := func(numExpected int) {
t.Helper()
checkFor(t, 200*time.Millisecond, 10*time.Millisecond, func() error {
if nmsgs, _, _ := sub.Pending(); err != nil || nmsgs != numExpected {
return fmt.Errorf("Did not receive correct number of messages: %d vs %d", nmsgs, numExpected)
}
return nil
})
}
checkNumMsgs := func(numExpected uint64) {
t.Helper()
mset, err = s.GlobalAccount().LookupStream(mname)
if err != nil {
t.Fatalf("Expected to find a stream for %q", mname)
}
state := mset.State()
if state.Msgs != numExpected {
t.Fatalf("Expected %d msgs, got %d", numExpected, state.Msgs)
}
}
// Wait til we know we have max queued up.
checkSubPending(max)
// Once here we have gone over the limit for the 1st message for max deliveries.
// Send second
sendStreamMsg(t, nc, mname, "order-2")
// Just wait for first delivery + one redelivery.
checkSubPending(max + 2)
// Capture port since it was dynamic.
u, _ := url.Parse(s.ClientURL())
port, _ := strconv.Atoi(u.Port())
restartServer := func() {
t.Helper()
// Stop current server.
s.Shutdown()
// Restart.
s = RunJetStreamServerOnPort(port)
}
// Restart.
restartServer()
defer s.Shutdown()
checkNumMsgs(2)
// Wait for client to be reconnected.
checkFor(t, 2500*time.Millisecond, 5*time.Millisecond, func() error {
if !nc.IsConnected() {
return fmt.Errorf("Not connected")
}
return nil
})
// Once we are here send third order.
// Send third
sendStreamMsg(t, nc, mname, "order-3")
checkNumMsgs(3)
// Restart.
restartServer()
defer s.Shutdown()
checkNumMsgs(3)
// Now we should have max times three on our sub.
checkSubPending(max * 3)
}
func TestJetStreamDeleteConsumerAndServerRestart(t *testing.T) {
s := RunBasicJetStreamServer()
defer s.Shutdown()
if config := s.JetStreamConfig(); config != nil {
defer os.RemoveAll(config.StoreDir)
}
sendSubj := "MYQ"
mset, err := s.GlobalAccount().AddStream(&server.StreamConfig{Name: sendSubj, Storage: server.FileStorage})
if err != nil {
t.Fatalf("Unexpected error adding stream: %v", err)
}
defer mset.Delete()
// Create basic work queue mode consumer.
oname := "WQ"
o, err := mset.AddConsumer(workerModeConfig(oname))
if err != nil {
t.Fatalf("Expected no error with registered interest, got %v", err)
}
// Now delete and then we will restart the server.
o.Delete()
if numo := mset.NumConsumers(); numo != 0 {
t.Fatalf("Expected to have zero consumers, got %d", numo)
}
// Stop current server.
s.Shutdown()
// Restart.
s = RunBasicJetStreamServer()
defer s.Shutdown()
mset, err = s.GlobalAccount().LookupStream(sendSubj)
if err != nil {
t.Fatalf("Expected to find a stream for %q", sendSubj)
}
if numo := mset.NumConsumers(); numo != 0 {
t.Fatalf("Expected to have zero consumers, got %d", numo)
}
}
func TestJetStreamRedeliveryAfterServerRestart(t *testing.T) {
s := RunBasicJetStreamServer()
defer s.Shutdown()
if config := s.JetStreamConfig(); config != nil {
defer os.RemoveAll(config.StoreDir)
}
sendSubj := "MYQ"
mset, err := s.GlobalAccount().AddStream(&server.StreamConfig{Name: sendSubj, Storage: server.FileStorage})
if err != nil {
t.Fatalf("Unexpected error adding stream: %v", err)
}
defer mset.Delete()
nc := clientConnectToServer(t, s)
defer nc.Close()
// Now load up some messages.
toSend := 25
for i := 0; i < toSend; i++ {
sendStreamMsg(t, nc, sendSubj, "Hello World!")
}
state := mset.State()
if state.Msgs != uint64(toSend) {
t.Fatalf("Expected %d messages, got %d", toSend, state.Msgs)
}
sub, _ := nc.SubscribeSync(nats.NewInbox())
defer sub.Unsubscribe()
nc.Flush()
o, err := mset.AddConsumer(&server.ConsumerConfig{
Durable: "TO",
DeliverSubject: sub.Subject,
AckPolicy: server.AckExplicit,
AckWait: 100 * time.Millisecond,
})
if err != nil {
t.Fatalf("Unexpected error: %v", err)
}
defer o.Delete()
checkFor(t, 250*time.Millisecond, 10*time.Millisecond, func() error {
if nmsgs, _, _ := sub.Pending(); err != nil || nmsgs != toSend {
return fmt.Errorf("Did not receive correct number of messages: %d vs %d", nmsgs, toSend)
}
return nil
})
// Stop current server.
s.Shutdown()
// Restart.
s = RunBasicJetStreamServer()
defer s.Shutdown()
// Don't wait for reconnect from old client.
nc = clientConnectToServer(t, s)
defer nc.Close()
sub, _ = nc.SubscribeSync(sub.Subject)
defer sub.Unsubscribe()
checkFor(t, time.Second, 50*time.Millisecond, func() error {
if nmsgs, _, _ := sub.Pending(); err != nil || nmsgs != toSend {
return fmt.Errorf("Did not receive correct number of messages: %d vs %d", nmsgs, toSend)
}
return nil
})
}
func TestJetStreamActiveDelivery(t *testing.T) {
cases := []struct {
name string
mconfig *server.StreamConfig
}{
{"MemoryStore", &server.StreamConfig{Name: "ADS", Storage: server.MemoryStorage, Subjects: []string{"foo.*"}}},
{"FileStore", &server.StreamConfig{Name: "ADS", Storage: server.FileStorage, Subjects: []string{"foo.*"}}},
}
for _, c := range cases {
t.Run(c.name, func(t *testing.T) {
s := RunBasicJetStreamServer()
defer s.Shutdown()
if config := s.JetStreamConfig(); config != nil && config.StoreDir != "" {
defer os.RemoveAll(config.StoreDir)
}
mset, err := s.GlobalAccount().AddStream(c.mconfig)
if err != nil {
t.Fatalf("Unexpected error adding stream: %v", err)
}
defer mset.Delete()
nc := clientConnectToServer(t, s)
defer nc.Close()
// Now load up some messages.
toSend := 100
sendSubj := "foo.22"
for i := 0; i < toSend; i++ {
sendStreamMsg(t, nc, sendSubj, "Hello World!")
}
state := mset.State()
if state.Msgs != uint64(toSend) {
t.Fatalf("Expected %d messages, got %d", toSend, state.Msgs)
}
o, err := mset.AddConsumer(&server.ConsumerConfig{Durable: "to", DeliverSubject: "d"})
if err != nil {
t.Fatalf("Expected no error with registered interest, got %v", err)
}
defer o.Delete()
// We have no active interest above. So consumer will be considered inactive. Let's subscribe and make sure
// we get the messages instantly. This will test that we hook interest activation correctly.
sub, _ := nc.SubscribeSync("d")
defer sub.Unsubscribe()
nc.Flush()
checkFor(t, 100*time.Millisecond, 10*time.Millisecond, func() error {
if nmsgs, _, _ := sub.Pending(); err != nil || nmsgs != toSend {
return fmt.Errorf("Did not receive correct number of messages: %d vs %d", nmsgs, toSend)
}
return nil
})
})
}
}
func TestJetStreamEphemeralConsumers(t *testing.T) {
cases := []struct {
name string
mconfig *server.StreamConfig
}{
{"MemoryStore", &server.StreamConfig{Name: "EP", Storage: server.MemoryStorage, Subjects: []string{"foo.*"}}},
{"FileStore", &server.StreamConfig{Name: "EP", Storage: server.FileStorage, Subjects: []string{"foo.*"}}},
}
for _, c := range cases {
t.Run(c.name, func(t *testing.T) {
s := RunBasicJetStreamServer()
defer s.Shutdown()
mset, err := s.GlobalAccount().AddStream(c.mconfig)
if err != nil {
t.Fatalf("Unexpected error adding stream: %v", err)
}
defer mset.Delete()
nc := clientConnectToServer(t, s)
defer nc.Close()
sub, _ := nc.SubscribeSync(nats.NewInbox())
defer sub.Unsubscribe()
nc.Flush()
o, err := mset.AddConsumer(&server.ConsumerConfig{DeliverSubject: sub.Subject})
if err != nil {
t.Fatalf("Unexpected error: %v", err)
}
if !o.Active() {
t.Fatalf("Expected the consumer to be considered active")
}
if numo := mset.NumConsumers(); numo != 1 {
t.Fatalf("Expected number of consumers to be 1, got %d", numo)
}
// Set our delete threshold to something low for testing purposes.
o.SetInActiveDeleteThreshold(100 * time.Millisecond)
// Make sure works now.
nc.Request("foo.22", nil, 100*time.Millisecond)
checkFor(t, 250*time.Millisecond, 10*time.Millisecond, func() error {
if nmsgs, _, _ := sub.Pending(); err != nil || nmsgs != 1 {
return fmt.Errorf("Did not receive correct number of messages: %d vs %d", nmsgs, 1)
}
return nil
})
// Now close the subscription, this should trip active state on the ephemeral consumer.
sub.Unsubscribe()
checkFor(t, time.Second, 10*time.Millisecond, func() error {
if o.Active() {
return fmt.Errorf("Expected the ephemeral consumer to be considered inactive")
}
return nil
})
// The reason for this still being 1 is that we give some time in case of a reconnect scenario.
// We detect right away on the interest change but we wait for interest to be re-established.
// This is in case server goes away but app is fine, we do not want to recycle those consumers.
if numo := mset.NumConsumers(); numo != 1 {
t.Fatalf("Expected number of consumers to be 1, got %d", numo)
}
// We should delete this one after the delete threshold.
checkFor(t, time.Second, 100*time.Millisecond, func() error {
if numo := mset.NumConsumers(); numo != 0 {
return fmt.Errorf("Expected number of consumers to be 0, got %d", numo)
}
return nil
})
})
}
}
func TestJetStreamConsumerReconnect(t *testing.T) {
cases := []struct {
name string
mconfig *server.StreamConfig
}{
{"MemoryStore", &server.StreamConfig{Name: "ET", Storage: server.MemoryStorage, Subjects: []string{"foo.*"}}},
{"FileStore", &server.StreamConfig{Name: "ET", Storage: server.FileStorage, Subjects: []string{"foo.*"}}},
}
for _, c := range cases {
t.Run(c.name, func(t *testing.T) {
s := RunBasicJetStreamServer()
defer s.Shutdown()
mset, err := s.GlobalAccount().AddStream(c.mconfig)
if err != nil {
t.Fatalf("Unexpected error adding stream: %v", err)
}
defer mset.Delete()
nc := clientConnectToServer(t, s)
defer nc.Close()
sub, _ := nc.SubscribeSync(nats.NewInbox())
defer sub.Unsubscribe()
nc.Flush()
// Capture the subscription.
delivery := sub.Subject
o, err := mset.AddConsumer(&server.ConsumerConfig{DeliverSubject: delivery, AckPolicy: server.AckExplicit})
if err != nil {
t.Fatalf("Unexpected error: %v", err)
}
if !o.Active() {
t.Fatalf("Expected the consumer to be considered active")
}
if numo := mset.NumConsumers(); numo != 1 {
t.Fatalf("Expected number of consumers to be 1, got %d", numo)
}
// We will simulate reconnect by unsubscribing on one connection and forming
// the same on another. Once we have cluster tests we will do more testing on
// reconnect scenarios.
getMsg := func(seqno int) *nats.Msg {
t.Helper()
m, err := sub.NextMsg(time.Second)
if err != nil {
t.Fatalf("Unexpected error for %d: %v", seqno, err)
}
if seq := o.SeqFromReply(m.Reply); seq != uint64(seqno) {
t.Fatalf("Expected sequence of %d , got %d", seqno, seq)
}
m.Respond(nil)
return m
}
sendMsg := func() {
t.Helper()
if err := nc.Publish("foo.22", []byte("OK!")); err != nil {
return
}
}
checkForInActive := func() {
checkFor(t, 250*time.Millisecond, 50*time.Millisecond, func() error {
if o.Active() {
return fmt.Errorf("Consumer is still active")
}
return nil
})
}
// Send and Pull first message.
sendMsg() // 1
getMsg(1)
// Cancel first one.
sub.Unsubscribe()
// Re-establish new sub on same subject.
sub, _ = nc.SubscribeSync(delivery)
// We should be getting 2 here.
sendMsg() // 2
getMsg(2)
sub.Unsubscribe()
checkForInActive()
// send 3-10
for i := 0; i <= 7; i++ {
sendMsg()
}
// Make sure they are all queued up with no interest.
nc.Flush()
// Restablish again.
sub, _ = nc.SubscribeSync(delivery)
nc.Flush()
// We should be getting 3-10 here.
for i := 3; i <= 10; i++ {
getMsg(i)
}
})
}
}
func TestJetStreamDurableConsumerReconnect(t *testing.T) {
cases := []struct {
name string
mconfig *server.StreamConfig
}{
{"MemoryStore", &server.StreamConfig{Name: "DT", Storage: server.MemoryStorage, Subjects: []string{"foo.*"}}},
{"FileStore", &server.StreamConfig{Name: "DT", Storage: server.FileStorage, Subjects: []string{"foo.*"}}},
}
for _, c := range cases {
t.Run(c.name, func(t *testing.T) {
s := RunBasicJetStreamServer()
defer s.Shutdown()
mset, err := s.GlobalAccount().AddStream(c.mconfig)
if err != nil {
t.Fatalf("Unexpected error adding stream: %v", err)
}
defer mset.Delete()
nc := clientConnectToServer(t, s)
defer nc.Close()
dname := "d22"
subj1 := nats.NewInbox()
o, err := mset.AddConsumer(&server.ConsumerConfig{Durable: dname, DeliverSubject: subj1, AckPolicy: server.AckExplicit})
if err != nil {
t.Fatalf("Unexpected error: %v", err)
}
sendMsg := func() {
t.Helper()
if err := nc.Publish("foo.22", []byte("OK!")); err != nil {
return
}
}
// Send 10 msgs
toSend := 10
for i := 0; i < toSend; i++ {
sendMsg()
}
sub, _ := nc.SubscribeSync(subj1)
defer sub.Unsubscribe()
checkFor(t, 250*time.Millisecond, 10*time.Millisecond, func() error {
if nmsgs, _, _ := sub.Pending(); err != nil || nmsgs != toSend {
return fmt.Errorf("Did not receive correct number of messages: %d vs %d", nmsgs, toSend)
}
return nil
})
getMsg := func(seqno int) *nats.Msg {
t.Helper()
m, err := sub.NextMsg(time.Second)
if err != nil {
t.Fatalf("Unexpected error: %v", err)
}
if seq := o.SeqFromReply(m.Reply); seq != uint64(seqno) {
t.Fatalf("Expected sequence of %d , got %d", seqno, seq)
}
m.Respond(nil)
return m
}
// Ack first half
for i := 1; i <= toSend/2; i++ {
m := getMsg(i)
m.Respond(nil)
}
// We should not be able to try to add an observer with the same name.
if _, err := mset.AddConsumer(&server.ConsumerConfig{Durable: dname, DeliverSubject: subj1, AckPolicy: server.AckExplicit}); err == nil {
t.Fatalf("Expected and error trying to add a new durable consumer while first still active")
}
// Now unsubscribe and wait to become inactive
sub.Unsubscribe()
checkFor(t, 250*time.Millisecond, 50*time.Millisecond, func() error {
if o.Active() {
return fmt.Errorf("Consumer is still active")
}
return nil
})
// Now we should be able to replace the delivery subject.
subj2 := nats.NewInbox()
sub, _ = nc.SubscribeSync(subj2)
defer sub.Unsubscribe()
nc.Flush()
o, err = mset.AddConsumer(&server.ConsumerConfig{Durable: dname, DeliverSubject: subj2, AckPolicy: server.AckExplicit})
if err != nil {
t.Fatalf("Unexpected error trying to add a new durable consumer: %v", err)
}
// We should get the remaining messages here.
for i := toSend / 2; i <= toSend; i++ {
m := getMsg(i)
m.Respond(nil)
}
})
}
}
func TestJetStreamDurableFilteredSubjectConsumerReconnect(t *testing.T) {
cases := []struct {
name string
mconfig *server.StreamConfig
}{
{"MemoryStore", &server.StreamConfig{Name: "DT", Storage: server.MemoryStorage, Subjects: []string{"foo.*"}}},
{"FileStore", &server.StreamConfig{Name: "DT", Storage: server.FileStorage, Subjects: []string{"foo.*"}}},
}
for _, c := range cases {
t.Run(c.name, func(t *testing.T) {
s := RunBasicJetStreamServer()
defer s.Shutdown()
mset, err := s.GlobalAccount().AddStream(c.mconfig)
if err != nil {
t.Fatalf("Unexpected error adding stream: %v", err)
}
defer mset.Delete()
nc := clientConnectToServer(t, s)
defer nc.Close()
sendMsgs := func(toSend int) {
for i := 0; i < toSend; i++ {
var subj string
if i%2 == 0 {
subj = "foo.AA"
} else {
subj = "foo.ZZ"
}
if err := nc.Publish(subj, []byte("OK!")); err != nil {
return
}
}
nc.Flush()
}
// Send 50 msgs
toSend := 50
sendMsgs(toSend)
dname := "d33"
dsubj := nats.NewInbox()
// Now create an consumer for foo.AA, only requesting the last one.
o, err := mset.AddConsumer(&server.ConsumerConfig{
Durable: dname,
DeliverSubject: dsubj,
FilterSubject: "foo.AA",
DeliverPolicy: server.DeliverLast,
AckPolicy: server.AckExplicit,
AckWait: 100 * time.Millisecond,
})
if err != nil {
t.Fatalf("Unexpected error: %v", err)
}
sub, _ := nc.SubscribeSync(dsubj)
defer sub.Unsubscribe()
// Used to calculate difference between store seq and delivery seq.
storeBaseOff := 47
getMsg := func(seq int) *nats.Msg {
t.Helper()
sseq := 2*seq + storeBaseOff
m, err := sub.NextMsg(time.Second)
if err != nil {
t.Fatalf("Unexpected error: %v", err)
}
rsseq, roseq, dcount := o.ReplyInfo(m.Reply)
if roseq != uint64(seq) {
t.Fatalf("Expected consumer sequence of %d , got %d", seq, roseq)
}
if rsseq != uint64(sseq) {
t.Fatalf("Expected stream sequence of %d , got %d", sseq, rsseq)
}
if dcount != 1 {
t.Fatalf("Expected message to not be marked as redelivered")
}
return m
}
getRedeliveredMsg := func(seq int) *nats.Msg {
t.Helper()
m, err := sub.NextMsg(time.Second)
if err != nil {
t.Fatalf("Unexpected error: %v", err)
}
_, roseq, dcount := o.ReplyInfo(m.Reply)
if roseq != uint64(seq) {
t.Fatalf("Expected consumer sequence of %d , got %d", seq, roseq)
}
if dcount < 2 {
t.Fatalf("Expected message to be marked as redelivered")
}
// Ack this message.
m.Respond(nil)
return m
}
// All consumers start at 1 and always have increasing sequence numbers.
m := getMsg(1)
m.Respond(nil)
// Now send 50 more, so 100 total, 26 (last + 50/2) for this consumer.
sendMsgs(toSend)
state := mset.State()
if state.Msgs != uint64(toSend*2) {
t.Fatalf("Expected %d messages, got %d", toSend*2, state.Msgs)
}
// For tracking next expected.
nextSeq := 2
noAcks := 0
for i := 0; i < toSend/2; i++ {
m := getMsg(nextSeq)
if i%2 == 0 {
m.Respond(nil) // Ack evens.
} else {
noAcks++
}
nextSeq++
}
// We should now get those redelivered.
for i := 0; i < noAcks; i++ {
getRedeliveredMsg(nextSeq)
nextSeq++
}
// Now send 50 more.
sendMsgs(toSend)
storeBaseOff -= noAcks * 2
for i := 0; i < toSend/2; i++ {
m := getMsg(nextSeq)
m.Respond(nil)
nextSeq++
}
})
}
}
func TestJetStreamConsumerInactiveNoDeadlock(t *testing.T) {
cases := []struct {
name string
mconfig *server.StreamConfig
}{
{"MemoryStore", &server.StreamConfig{Name: "DC", Storage: server.MemoryStorage}},
{"FileStore", &server.StreamConfig{Name: "DC", Storage: server.FileStorage}},
}
for _, c := range cases {
t.Run(c.name, func(t *testing.T) {
s := RunBasicJetStreamServer()
defer s.Shutdown()
mset, err := s.GlobalAccount().AddStream(c.mconfig)
if err != nil {
t.Fatalf("Unexpected error adding stream: %v", err)
}
defer mset.Delete()
nc := clientConnectToServer(t, s)
defer nc.Close()
// Send lots of msgs and have them queued up.
for i := 0; i < 10000; i++ {
nc.Publish("DC", []byte("OK!"))
}
nc.Flush()
if state := mset.State(); state.Msgs != 10000 {
t.Fatalf("Expected %d messages, got %d", 10000, state.Msgs)
}
sub, _ := nc.SubscribeSync(nats.NewInbox())
defer sub.Unsubscribe()
nc.Flush()
o, err := mset.AddConsumer(&server.ConsumerConfig{DeliverSubject: sub.Subject})
if err != nil {
t.Fatalf("Unexpected error: %v", err)
}
defer o.Delete()
for i := 0; i < 10; i++ {
if _, err := sub.NextMsg(time.Second); err != nil {
t.Fatalf("Unexpected error: %v", err)
}
}
// Force us to become inactive but we want to make sure we do not lock up
// the internal sendq.
sub.Unsubscribe()
nc.Flush()
})
}
}
func TestJetStreamRedeliverCount(t *testing.T) {
cases := []struct {
name string
mconfig *server.StreamConfig
}{
{"MemoryStore", &server.StreamConfig{Name: "DC", Storage: server.MemoryStorage}},
{"FileStore", &server.StreamConfig{Name: "DC", Storage: server.FileStorage}},
}
for _, c := range cases {
t.Run(c.name, func(t *testing.T) {
s := RunBasicJetStreamServer()
defer s.Shutdown()
mset, err := s.GlobalAccount().AddStream(c.mconfig)
if err != nil {
t.Fatalf("Unexpected error adding stream: %v", err)
}
defer mset.Delete()
nc := clientConnectToServer(t, s)
defer nc.Close()
// Send 10 msgs
for i := 0; i < 10; i++ {
nc.Publish("DC", []byte("OK!"))
}
nc.Flush()
if state := mset.State(); state.Msgs != 10 {
t.Fatalf("Expected %d messages, got %d", 10, state.Msgs)
}
o, err := mset.AddConsumer(workerModeConfig("WQ"))
if err != nil {
t.Fatalf("Expected no error with registered interest, got %v", err)
}
defer o.Delete()
for i := uint64(1); i <= 10; i++ {
m, err := nc.Request(o.RequestNextMsgSubject(), nil, time.Second)
if err != nil {
t.Fatalf("Unexpected error: %v", err)
}
sseq, dseq, dcount := o.ReplyInfo(m.Reply)
// Make sure we keep getting stream sequence #1
if sseq != 1 {
t.Fatalf("Expected set sequence of 1, got %d", sseq)
}
if dseq != i {
t.Fatalf("Expected delivery sequence of %d, got %d", i, dseq)
}
// Now make sure dcount is same as dseq (or i).
if dcount != i {
t.Fatalf("Expected delivery count to be %d, got %d", i, dcount)
}
// Make sure it keeps getting sent back.
m.Respond(server.AckNak)
}
})
}
}
func TestJetStreamCanNotNakAckd(t *testing.T) {
cases := []struct {
name string
mconfig *server.StreamConfig
}{
{"MemoryStore", &server.StreamConfig{Name: "DC", Storage: server.MemoryStorage}},
{"FileStore", &server.StreamConfig{Name: "DC", Storage: server.FileStorage}},
}
for _, c := range cases {
t.Run(c.name, func(t *testing.T) {
s := RunBasicJetStreamServer()
defer s.Shutdown()
mset, err := s.GlobalAccount().AddStream(c.mconfig)
if err != nil {
t.Fatalf("Unexpected error adding stream: %v", err)
}
defer mset.Delete()
nc := clientConnectToServer(t, s)
defer nc.Close()
// Send 10 msgs
for i := 0; i < 10; i++ {
nc.Publish("DC", []byte("OK!"))
}
nc.Flush()
if state := mset.State(); state.Msgs != 10 {
t.Fatalf("Expected %d messages, got %d", 10, state.Msgs)
}
o, err := mset.AddConsumer(workerModeConfig("WQ"))
if err != nil {
t.Fatalf("Expected no error with registered interest, got %v", err)
}
defer o.Delete()
for i := uint64(1); i <= 10; i++ {
m, err := nc.Request(o.RequestNextMsgSubject(), nil, time.Second)
if err != nil {
t.Fatalf("Unexpected error: %v", err)
}
// Ack evens.
if i%2 == 0 {
m.Respond(nil)
}
}
nc.Flush()
// Fake these for now.
ackReplyT := "$JS.A.DC.WQ.1.%d.%d"
checkBadNak := func(seq int) {
t.Helper()
if err := nc.Publish(fmt.Sprintf(ackReplyT, seq, seq), server.AckNak); err != nil {
t.Fatalf("Error sending nak: %v", err)
}
nc.Flush()
if _, err := nc.Request(o.RequestNextMsgSubject(), nil, 10*time.Millisecond); err != nats.ErrTimeout {
t.Fatalf("Did not expect new delivery on nak of %d", seq)
}
}
// If the nak took action it will deliver another message, incrementing the next delivery seq.
// We ack evens above, so these should fail
for i := 2; i <= 10; i += 2 {
checkBadNak(i)
}
// Now check we can not nak something we do not have.
checkBadNak(22)
})
}
}
func TestJetStreamStreamPurge(t *testing.T) {
cases := []struct {
name string
mconfig *server.StreamConfig
}{
{"MemoryStore", &server.StreamConfig{Name: "DC", Storage: server.MemoryStorage}},
{"FileStore", &server.StreamConfig{Name: "DC", Storage: server.FileStorage}},
}
for _, c := range cases {
t.Run(c.name, func(t *testing.T) {
s := RunBasicJetStreamServer()
defer s.Shutdown()
mset, err := s.GlobalAccount().AddStream(c.mconfig)
if err != nil {
t.Fatalf("Unexpected error adding stream: %v", err)
}
defer mset.Delete()
nc := clientConnectToServer(t, s)
defer nc.Close()
// Send 100 msgs
for i := 0; i < 100; i++ {
nc.Publish("DC", []byte("OK!"))
}
nc.Flush()
if state := mset.State(); state.Msgs != 100 {
t.Fatalf("Expected %d messages, got %d", 100, state.Msgs)
}
mset.Purge()
if state := mset.State(); state.Msgs != 0 {
t.Fatalf("Expected %d messages, got %d", 0, state.Msgs)
}
})
}
}
func TestJetStreamStreamPurgeWithConsumer(t *testing.T) {
cases := []struct {
name string
mconfig *server.StreamConfig
}{
{"MemoryStore", &server.StreamConfig{Name: "DC", Storage: server.MemoryStorage}},
{"FileStore", &server.StreamConfig{Name: "DC", Storage: server.FileStorage}},
}
for _, c := range cases {
t.Run(c.name, func(t *testing.T) {
s := RunBasicJetStreamServer()
defer s.Shutdown()
mset, err := s.GlobalAccount().AddStream(c.mconfig)
if err != nil {
t.Fatalf("Unexpected error adding stream: %v", err)
}
defer mset.Delete()
nc := clientConnectToServer(t, s)
defer nc.Close()
// Send 100 msgs
for i := 0; i < 100; i++ {
nc.Publish("DC", []byte("OK!"))
}
nc.Flush()
if state := mset.State(); state.Msgs != 100 {
t.Fatalf("Expected %d messages, got %d", 100, state.Msgs)
}
// Now create an consumer and make sure it functions properly.
o, err := mset.AddConsumer(workerModeConfig("WQ"))
if err != nil {
t.Fatalf("Expected no error with registered interest, got %v", err)
}
defer o.Delete()
nextSubj := o.RequestNextMsgSubject()
for i := 0; i < 50; i++ {
msg, err := nc.Request(nextSubj, nil, time.Second)
if err != nil {
t.Fatalf("Unexpected error: %v", err)
}
// Ack.
msg.Respond(nil)
}
// Now grab next 25 without ack.
for i := 0; i < 25; i++ {
if _, err := nc.Request(nextSubj, nil, time.Second); err != nil {
t.Fatalf("Unexpected error: %v", err)
}
}
state := o.Info().State
if state.AckFloor.ConsumerSeq != 50 {
t.Fatalf("Expected ack floor of 50, got %d", state.AckFloor.ConsumerSeq)
}
if len(state.Pending) != 25 {
t.Fatalf("Expected len(pending) to be 25, got %d", len(state.Pending))
}
// Now do purge.
mset.Purge()
if state := mset.State(); state.Msgs != 0 {
t.Fatalf("Expected %d messages, got %d", 0, state.Msgs)
}
// Now re-acquire state and check that we did the right thing.
// Pending should be cleared, and stream sequences should have been set
// to the total messages before purge + 1.
state = o.Info().State
if len(state.Pending) != 0 {
t.Fatalf("Expected no pending, got %d", len(state.Pending))
}
if state.Delivered.StreamSeq != 100 {
t.Fatalf("Expected to have setseq now at next seq of 100, got %d", state.Delivered.StreamSeq)
}
// Check AckFloors which should have also been adjusted.
if state.AckFloor.StreamSeq != 100 {
t.Fatalf("Expected ackfloor for setseq to be 100, got %d", state.AckFloor.StreamSeq)
}
if state.AckFloor.ConsumerSeq != 75 {
t.Fatalf("Expected ackfloor for obsseq to be 75, got %d", state.AckFloor.ConsumerSeq)
}
// Also make sure we can get new messages correctly.
nc.Request("DC", []byte("OK-22"), time.Second)
if msg, err := nc.Request(nextSubj, nil, time.Second); err != nil {
t.Fatalf("Unexpected error: %v", err)
} else if string(msg.Data) != "OK-22" {
t.Fatalf("Received wrong message, wanted 'OK-22', got %q", msg.Data)
}
})
}
}
func TestJetStreamStreamPurgeWithConsumerAndRedelivery(t *testing.T) {
cases := []struct {
name string
mconfig *server.StreamConfig
}{
{"MemoryStore", &server.StreamConfig{Name: "DC", Storage: server.MemoryStorage}},
{"FileStore", &server.StreamConfig{Name: "DC", Storage: server.FileStorage}},
}
for _, c := range cases {
t.Run(c.name, func(t *testing.T) {
s := RunBasicJetStreamServer()
defer s.Shutdown()
mset, err := s.GlobalAccount().AddStream(c.mconfig)
if err != nil {
t.Fatalf("Unexpected error adding stream: %v", err)
}
defer mset.Delete()
nc := clientConnectToServer(t, s)
defer nc.Close()
// Send 100 msgs
for i := 0; i < 100; i++ {
nc.Publish("DC", []byte("OK!"))
}
nc.Flush()
if state := mset.State(); state.Msgs != 100 {
t.Fatalf("Expected %d messages, got %d", 100, state.Msgs)
}
// Now create an consumer and make sure it functions properly.
// This will test redelivery state and purge of the stream.
wcfg := &server.ConsumerConfig{
Durable: "WQ",
AckPolicy: server.AckExplicit,
AckWait: 20 * time.Millisecond,
}
o, err := mset.AddConsumer(wcfg)
if err != nil {
t.Fatalf("Expected no error with registered interest, got %v", err)
}
defer o.Delete()
nextSubj := o.RequestNextMsgSubject()
for i := 0; i < 50; i++ {
// Do not ack these.
if _, err := nc.Request(nextSubj, nil, time.Second); err != nil {
t.Fatalf("Unexpected error: %v", err)
}
}
// Now wait to make sure we are in a redelivered state.
time.Sleep(wcfg.AckWait * 2)
// Now do purge.
mset.Purge()
if state := mset.State(); state.Msgs != 0 {
t.Fatalf("Expected %d messages, got %d", 0, state.Msgs)
}
// Now get the state and check that we did the right thing.
// Pending should be cleared, and stream sequences should have been set
// to the total messages before purge + 1.
state := o.Info().State
if len(state.Pending) != 0 {
t.Fatalf("Expected no pending, got %d", len(state.Pending))
}
if state.Delivered.StreamSeq != 100 {
t.Fatalf("Expected to have setseq now at next seq of 100, got %d", state.Delivered.StreamSeq)
}
// Check AckFloors which should have also been adjusted.
if state.AckFloor.StreamSeq != 100 {
t.Fatalf("Expected ackfloor for setseq to be 100, got %d", state.AckFloor.StreamSeq)
}
if state.AckFloor.ConsumerSeq != 50 {
t.Fatalf("Expected ackfloor for obsseq to be 75, got %d", state.AckFloor.ConsumerSeq)
}
// Also make sure we can get new messages correctly.
nc.Request("DC", []byte("OK-22"), time.Second)
if msg, err := nc.Request(nextSubj, nil, time.Second); err != nil {
t.Fatalf("Unexpected error: %v", err)
} else if string(msg.Data) != "OK-22" {
t.Fatalf("Received wrong message, wanted 'OK-22', got %q", msg.Data)
}
})
}
}
func TestJetStreamInterestRetentionStream(t *testing.T) {
cases := []struct {
name string
mconfig *server.StreamConfig
}{
{"MemoryStore", &server.StreamConfig{Name: "DC", Storage: server.MemoryStorage, Retention: server.InterestPolicy}},
{"FileStore", &server.StreamConfig{Name: "DC", Storage: server.FileStorage, Retention: server.InterestPolicy}},
}
for _, c := range cases {
t.Run(c.name, func(t *testing.T) {
s := RunBasicJetStreamServer()
defer s.Shutdown()
mset, err := s.GlobalAccount().AddStream(c.mconfig)
if err != nil {
t.Fatalf("Unexpected error adding stream: %v", err)
}
defer mset.Delete()
nc := clientConnectToServer(t, s)
defer nc.Close()
// Send 100 msgs
totalMsgs := 100
for i := 0; i < totalMsgs; i++ {
nc.Publish("DC", []byte("OK!"))
}
nc.Flush()
checkNumMsgs := func(numExpected int) {
t.Helper()
if state := mset.State(); state.Msgs != uint64(numExpected) {
t.Fatalf("Expected %d messages, got %d", numExpected, state.Msgs)
}
}
checkNumMsgs(totalMsgs)
syncSub := func() *nats.Subscription {
sub, _ := nc.SubscribeSync(nats.NewInbox())
nc.Flush()
return sub
}
// Now create three consumers.
// 1. AckExplicit
// 2. AckAll
// 3. AckNone
sub1 := syncSub()
mset.AddConsumer(&server.ConsumerConfig{DeliverSubject: sub1.Subject, AckPolicy: server.AckExplicit})
sub2 := syncSub()
mset.AddConsumer(&server.ConsumerConfig{DeliverSubject: sub2.Subject, AckPolicy: server.AckAll})
sub3 := syncSub()
mset.AddConsumer(&server.ConsumerConfig{DeliverSubject: sub3.Subject, AckPolicy: server.AckNone})
// Wait for all messsages to be pending for each sub.
for i, sub := range []*nats.Subscription{sub1, sub2, sub3} {
checkFor(t, 500*time.Millisecond, 25*time.Millisecond, func() error {
if nmsgs, _, _ := sub.Pending(); nmsgs != totalMsgs {
return fmt.Errorf("Did not receive correct number of messages: %d vs %d for sub %d", nmsgs, totalMsgs, i+1)
}
return nil
})
}
getAndAck := func(sub *nats.Subscription) {
t.Helper()
if m, err := sub.NextMsg(time.Second); err != nil {
t.Fatalf("Unexpected error: %v", err)
} else {
m.Respond(nil)
}
nc.Flush()
}
// Ack evens for the explicit ack sub.
var odds []*nats.Msg
for i := 1; i <= totalMsgs; i++ {
if m, err := sub1.NextMsg(time.Second); err != nil {
t.Fatalf("Unexpected error: %v", err)
} else if i%2 == 0 {
m.Respond(nil) // Ack evens.
} else {
odds = append(odds, m)
}
}
nc.Flush()
checkNumMsgs(totalMsgs)
// Now ack first for AckAll sub2
getAndAck(sub2)
// We should be at the same number since we acked 1, explicit acked 2
checkNumMsgs(totalMsgs)
// Now ack second for AckAll sub2
getAndAck(sub2)
// We should now have 1 removed.
checkNumMsgs(totalMsgs - 1)
// Now ack third for AckAll sub2
getAndAck(sub2)
// We should still only have 1 removed.
checkNumMsgs(totalMsgs - 1)
// Now ack odds from explicit.
for _, m := range odds {
m.Respond(nil) // Ack
}
nc.Flush()
// we should have 1, 2, 3 acks now.
checkNumMsgs(totalMsgs - 3)
// Now ack last ackall message. This should clear all of them.
for i := 4; i <= totalMsgs; i++ {
if m, err := sub2.NextMsg(time.Second); err != nil {
t.Fatalf("Unexpected error: %v", err)
} else if i == totalMsgs {
m.Respond(nil)
}
}
nc.Flush()
// Should be zero now.
checkNumMsgs(0)
})
}
}
func TestJetStreamConsumerReplayRate(t *testing.T) {
cases := []struct {
name string
mconfig *server.StreamConfig
}{
{"MemoryStore", &server.StreamConfig{Name: "DC", Storage: server.MemoryStorage, Retention: server.InterestPolicy}},
{"FileStore", &server.StreamConfig{Name: "DC", Storage: server.FileStorage, Retention: server.InterestPolicy}},
}
for _, c := range cases {
t.Run(c.name, func(t *testing.T) {
s := RunBasicJetStreamServer()
defer s.Shutdown()
mset, err := s.GlobalAccount().AddStream(c.mconfig)
if err != nil {
t.Fatalf("Unexpected error adding stream: %v", err)
}
defer mset.Delete()
nc := clientConnectToServer(t, s)
defer nc.Close()
// Send 10 msgs
totalMsgs := 10
var gaps []time.Duration
lst := time.Now()
for i := 0; i < totalMsgs; i++ {
gaps = append(gaps, time.Since(lst))
nc.Request("DC", []byte("OK!"), time.Second)
lst = time.Now()
// Calculate a gap between messages.
gap := 10*time.Millisecond + time.Duration(rand.Intn(20))*time.Millisecond
time.Sleep(gap)
}
if state := mset.State(); state.Msgs != uint64(totalMsgs) {
t.Fatalf("Expected %d messages, got %d", totalMsgs, state.Msgs)
}
sub, _ := nc.SubscribeSync(nats.NewInbox())
defer sub.Unsubscribe()
nc.Flush()
o, err := mset.AddConsumer(&server.ConsumerConfig{DeliverSubject: sub.Subject})
if err != nil {
t.Fatalf("Unexpected error: %v", err)
}
defer o.Delete()
// Firehose/instant which is default.
last := time.Now()
for i := 0; i < totalMsgs; i++ {
if _, err := sub.NextMsg(time.Second); err != nil {
t.Fatalf("Unexpected error: %v", err)
}
now := time.Now()
if now.Sub(last) > 5*time.Millisecond {
t.Fatalf("Expected firehose/instant delivery, got message gap of %v", now.Sub(last))
}
last = now
}
// Now do replay rate to match original.
o, err = mset.AddConsumer(&server.ConsumerConfig{DeliverSubject: sub.Subject, ReplayPolicy: server.ReplayOriginal})
if err != nil {
t.Fatalf("Unexpected error: %v", err)
}
defer o.Delete()
// Original rate messsages were received for push based consumer.
for i := 0; i < totalMsgs; i++ {
start := time.Now()
if _, err := sub.NextMsg(time.Second); err != nil {
t.Fatalf("Unexpected error: %v", err)
}
gap := time.Since(start)
// 10ms is high but on macs time.Sleep(delay) does not sleep only delay.
if gap < gaps[i] || gap > gaps[i]+10*time.Millisecond {
t.Fatalf("Gap is incorrect for %d, expected %v got %v", i, gaps[i], gap)
}
}
// Now create pull based.
oc := workerModeConfig("PM")
oc.ReplayPolicy = server.ReplayOriginal
o, err = mset.AddConsumer(oc)
if err != nil {
t.Fatalf("Unexpected error: %v", err)
}
defer o.Delete()
for i := 0; i < totalMsgs; i++ {
start := time.Now()
if _, err := nc.Request(o.RequestNextMsgSubject(), nil, time.Second); err != nil {
t.Fatalf("Unexpected error: %v", err)
}
gap := time.Since(start)
// 10ms is high but on macs time.Sleep(delay) does not sleep only delay.
if gap < gaps[i] || gap > gaps[i]+10*time.Millisecond {
t.Fatalf("Gap is incorrect for %d, expected %v got %v", i, gaps[i], gap)
}
}
})
}
}
func TestJetStreamConsumerReplayRateNoAck(t *testing.T) {
cases := []struct {
name string
mconfig *server.StreamConfig
}{
{"MemoryStore", &server.StreamConfig{Name: "DC", Storage: server.MemoryStorage}},
{"FileStore", &server.StreamConfig{Name: "DC", Storage: server.FileStorage}},
}
for _, c := range cases {
t.Run(c.name, func(t *testing.T) {
s := RunBasicJetStreamServer()
defer s.Shutdown()
mset, err := s.GlobalAccount().AddStream(c.mconfig)
if err != nil {
t.Fatalf("Unexpected error adding stream: %v", err)
}
defer mset.Delete()
nc := clientConnectToServer(t, s)
defer nc.Close()
// Send 10 msgs
totalMsgs := 10
for i := 0; i < totalMsgs; i++ {
nc.Request("DC", []byte("Hello World"), time.Second)
time.Sleep(time.Duration(rand.Intn(5)) * time.Millisecond)
}
if state := mset.State(); state.Msgs != uint64(totalMsgs) {
t.Fatalf("Expected %d messages, got %d", totalMsgs, state.Msgs)
}
subj := "d.dc"
o, err := mset.AddConsumer(&server.ConsumerConfig{
Durable: "derek",
DeliverSubject: subj,
AckPolicy: server.AckNone,
ReplayPolicy: server.ReplayOriginal,
})
if err != nil {
t.Fatalf("Unexpected error: %v", err)
}
defer o.Delete()
// Sleep a random amount of time.
time.Sleep(time.Duration(rand.Intn(20)) * time.Millisecond)
sub, _ := nc.SubscribeSync(subj)
nc.Flush()
checkFor(t, time.Second, 25*time.Millisecond, func() error {
if nmsgs, _, _ := sub.Pending(); err != nil || nmsgs != totalMsgs {
return fmt.Errorf("Did not receive correct number of messages: %d vs %d", nmsgs, totalMsgs)
}
return nil
})
})
}
}
func TestJetStreamConsumerReplayQuit(t *testing.T) {
cases := []struct {
name string
mconfig *server.StreamConfig
}{
{"MemoryStore", &server.StreamConfig{Name: "DC", Storage: server.MemoryStorage, Retention: server.InterestPolicy}},
{"FileStore", &server.StreamConfig{Name: "DC", Storage: server.FileStorage, Retention: server.InterestPolicy}},
}
for _, c := range cases {
t.Run(c.name, func(t *testing.T) {
s := RunBasicJetStreamServer()
defer s.Shutdown()
mset, err := s.GlobalAccount().AddStream(c.mconfig)
if err != nil {
t.Fatalf("Unexpected error adding stream: %v", err)
}
defer mset.Delete()
nc := clientConnectToServer(t, s)
defer nc.Close()
// Send 2 msgs
nc.Request("DC", []byte("OK!"), time.Second)
time.Sleep(100 * time.Millisecond)
nc.Request("DC", []byte("OK!"), time.Second)
if state := mset.State(); state.Msgs != 2 {
t.Fatalf("Expected %d messages, got %d", 2, state.Msgs)
}
sub, _ := nc.SubscribeSync(nats.NewInbox())
defer sub.Unsubscribe()
nc.Flush()
// Now do replay rate to match original.
o, err := mset.AddConsumer(&server.ConsumerConfig{DeliverSubject: sub.Subject, ReplayPolicy: server.ReplayOriginal})
if err != nil {
t.Fatalf("Unexpected error: %v", err)
}
// Allow loop and deliver / replay go routine to spin up
time.Sleep(50 * time.Millisecond)
base := runtime.NumGoroutine()
o.Delete()
checkFor(t, 100*time.Millisecond, 10*time.Millisecond, func() error {
if runtime.NumGoroutine() >= base {
return fmt.Errorf("Consumer go routines still running")
}
return nil
})
})
}
}
func TestJetStreamSystemLimits(t *testing.T) {
s := RunRandClientPortServer()
defer s.Shutdown()
if _, _, err := s.JetStreamReservedResources(); err == nil {
t.Fatalf("Expected error requesting jetstream reserved resources when not enabled")
}
// Create some accounts.
facc, _ := s.LookupOrRegisterAccount("FOO")
bacc, _ := s.LookupOrRegisterAccount("BAR")
zacc, _ := s.LookupOrRegisterAccount("BAZ")
jsconfig := &server.JetStreamConfig{MaxMemory: 1024, MaxStore: 8192}
if err := s.EnableJetStream(jsconfig); err != nil {
t.Fatalf("Expected no error, got %v", err)
}
if rm, rd, err := s.JetStreamReservedResources(); err != nil {
t.Fatalf("Unexpected error requesting jetstream reserved resources: %v", err)
} else if rm != 0 || rd != 0 {
t.Fatalf("Expected reserved memory and store to be 0, got %d and %d", rm, rd)
}
limits := func(mem int64, store int64) *server.JetStreamAccountLimits {
return &server.JetStreamAccountLimits{
MaxMemory: mem,
MaxStore: store,
MaxStreams: -1,
MaxConsumers: -1,
}
}
if err := facc.EnableJetStream(limits(24, 192)); err != nil {
t.Fatalf("Unexpected error: %v", err)
}
// Use up rest of our resources in memory
if err := bacc.EnableJetStream(limits(1000, 0)); err != nil {
t.Fatalf("Unexpected error: %v", err)
}
// Now ask for more memory. Should error.
if err := zacc.EnableJetStream(limits(1000, 0)); err == nil {
t.Fatalf("Expected an error when exhausting memory resource limits")
}
// Disk too.
if err := zacc.EnableJetStream(limits(0, 10000)); err == nil {
t.Fatalf("Expected an error when exhausting memory resource limits")
}
facc.DisableJetStream()
bacc.DisableJetStream()
zacc.DisableJetStream()
// Make sure we unreserved resources.
if rm, rd, err := s.JetStreamReservedResources(); err != nil {
t.Fatalf("Unexpected error requesting jetstream reserved resources: %v", err)
} else if rm != 0 || rd != 0 {
t.Fatalf("Expected reserved memory and store to be 0, got %v and %v", server.FriendlyBytes(rm), server.FriendlyBytes(rd))
}
if err := facc.EnableJetStream(limits(24, 192)); err != nil {
t.Fatalf("Unexpected error: %v", err)
}
// Test Adjust
l := limits(jsconfig.MaxMemory, jsconfig.MaxStore)
l.MaxStreams = 10
l.MaxConsumers = 10
if err := facc.UpdateJetStreamLimits(l); err != nil {
t.Fatalf("Unexpected error updating jetstream account limits: %v", err)
}
var msets []*server.Stream
// Now test max streams and max consumers. Note max consumers is per stream.
for i := 0; i < 10; i++ {
mname := fmt.Sprintf("foo.%d", i)
mset, err := facc.AddStream(&server.StreamConfig{Name: strconv.Itoa(i), Subjects: []string{mname}})
if err != nil {
t.Fatalf("Unexpected error adding stream: %v", err)
}
msets = append(msets, mset)
}
// This one should fail since over the limit for max number of streams.
if _, err := facc.AddStream(&server.StreamConfig{Name: "22", Subjects: []string{"foo.22"}}); err == nil {
t.Fatalf("Expected error adding stream over limit")
}
// Remove them all
for _, mset := range msets {
mset.Delete()
}
// Now try to add one with bytes limit that would exceed the account limit.
if _, err := facc.AddStream(&server.StreamConfig{Name: "22", MaxBytes: jsconfig.MaxMemory * 2}); err == nil {
t.Fatalf("Expected error adding stream over limit")
}
// Replicas can't be > 1
if _, err := facc.AddStream(&server.StreamConfig{Name: "22", Replicas: 10}); err == nil {
t.Fatalf("Expected error adding stream over limit")
}
// Test consumers limit
mset, err := facc.AddStream(&server.StreamConfig{Name: "22", Subjects: []string{"foo.22"}})
if err != nil {
t.Fatalf("Unexpected error adding stream: %v", err)
}
for i := 0; i < 10; i++ {
oname := fmt.Sprintf("O:%d", i)
_, err := mset.AddConsumer(&server.ConsumerConfig{Durable: oname, AckPolicy: server.AckExplicit})
if err != nil {
t.Fatalf("Unexpected error: %v", err)
}
}
// This one should fail.
if _, err := mset.AddConsumer(&server.ConsumerConfig{Durable: "O:22", AckPolicy: server.AckExplicit}); err == nil {
t.Fatalf("Expected error adding consumer over the limit")
}
}
func TestJetStreamStreamStorageTrackingAndLimits(t *testing.T) {
s := RunBasicJetStreamServer()
defer s.Shutdown()
gacc := s.GlobalAccount()
al := &server.JetStreamAccountLimits{
MaxMemory: 8192,
MaxStore: -1,
MaxStreams: -1,
MaxConsumers: -1,
}
if err := gacc.UpdateJetStreamLimits(al); err != nil {
t.Fatalf("Unexpected error updating jetstream account limits: %v", err)
}
mset, err := gacc.AddStream(&server.StreamConfig{Name: "LIMITS", Retention: server.WorkQueuePolicy})
if err != nil {
t.Fatalf("Unexpected error adding stream: %v", err)
}
defer mset.Delete()
nc := clientConnectToServer(t, s)
defer nc.Close()
toSend := 100
for i := 0; i < toSend; i++ {
sendStreamMsg(t, nc, "LIMITS", "Hello World!")
}
state := mset.State()
usage := gacc.JetStreamUsage()
// Make sure these are working correctly.
if state.Bytes != usage.Memory {
t.Fatalf("Expected to have stream bytes match memory usage, %d vs %d", state.Bytes, usage.Memory)
}
if usage.Streams != 1 {
t.Fatalf("Expected to have 1 stream, got %d", usage.Streams)
}
// Do second stream.
mset2, err := gacc.AddStream(&server.StreamConfig{Name: "NUM22", Retention: server.WorkQueuePolicy})
if err != nil {
t.Fatalf("Unexpected error adding stream: %v", err)
}
defer mset2.Delete()
for i := 0; i < toSend; i++ {
sendStreamMsg(t, nc, "NUM22", "Hello World!")
}
stats2 := mset2.State()
usage = gacc.JetStreamUsage()
if usage.Memory != (state.Bytes + stats2.Bytes) {
t.Fatalf("Expected to track both streams, account is %v, stream1 is %v, stream2 is %v", usage.Memory, state.Bytes, stats2.Bytes)
}
// Make sure delete works.
mset2.Delete()
stats2 = mset2.State()
usage = gacc.JetStreamUsage()
if usage.Memory != (state.Bytes + stats2.Bytes) {
t.Fatalf("Expected to track both streams, account is %v, stream1 is %v, stream2 is %v", usage.Memory, state.Bytes, stats2.Bytes)
}
// Now drain the first one by consuming the messages.
o, err := mset.AddConsumer(workerModeConfig("WQ"))
if err != nil {
t.Fatalf("Expected no error with registered interest, got %v", err)
}
defer o.Delete()
for i := 0; i < toSend; i++ {
msg, err := nc.Request(o.RequestNextMsgSubject(), nil, time.Second)
if err != nil {
t.Fatalf("Unexpected error: %v", err)
}
msg.Respond(nil)
}
nc.Flush()
state = mset.State()
usage = gacc.JetStreamUsage()
if usage.Memory != 0 {
t.Fatalf("Expected usage memeory to be 0, got %d", usage.Memory)
}
// Now send twice the number of messages. Should receive an error at some point, and we will check usage against limits.
var errSeen string
for i := 0; i < toSend*2; i++ {
resp, _ := nc.Request("LIMITS", []byte("The quick brown fox jumped over the..."), 50*time.Millisecond)
if string(resp.Data) != server.OK {
errSeen = string(resp.Data)
break
}
}
if errSeen == "" {
t.Fatalf("Expected to see an error when exceeding the account limits")
}
state = mset.State()
usage = gacc.JetStreamUsage()
if usage.Memory > uint64(al.MaxMemory) {
t.Fatalf("Expected memory to not exceed limit of %d, got %d", al.MaxMemory, usage.Memory)
}
}
func TestJetStreamStreamFileStorageTrackingAndLimits(t *testing.T) {
s := RunBasicJetStreamServer()
defer s.Shutdown()
gacc := s.GlobalAccount()
al := &server.JetStreamAccountLimits{
MaxMemory: 8192,
MaxStore: 9600,
MaxStreams: -1,
MaxConsumers: -1,
}
if err := gacc.UpdateJetStreamLimits(al); err != nil {
t.Fatalf("Unexpected error updating jetstream account limits: %v", err)
}
mconfig := &server.StreamConfig{Name: "LIMITS", Storage: server.FileStorage, Retention: server.WorkQueuePolicy}
mset, err := gacc.AddStream(mconfig)
if err != nil {
t.Fatalf("Unexpected error adding stream: %v", err)
}
defer mset.Delete()
nc := clientConnectToServer(t, s)
defer nc.Close()
toSend := 100
for i := 0; i < toSend; i++ {
sendStreamMsg(t, nc, "LIMITS", "Hello World!")
}
state := mset.State()
usage := gacc.JetStreamUsage()
// Make sure these are working correctly.
if usage.Store != state.Bytes {
t.Fatalf("Expected to have stream bytes match the store usage, %d vs %d", usage.Store, state.Bytes)
}
if usage.Streams != 1 {
t.Fatalf("Expected to have 1 stream, got %d", usage.Streams)
}
// Do second stream.
mconfig2 := &server.StreamConfig{Name: "NUM22", Storage: server.FileStorage, Retention: server.WorkQueuePolicy}
mset2, err := gacc.AddStream(mconfig2)
if err != nil {
t.Fatalf("Unexpected error adding stream: %v", err)
}
defer mset2.Delete()
for i := 0; i < toSend; i++ {
sendStreamMsg(t, nc, "NUM22", "Hello World!")
}
stats2 := mset2.State()
usage = gacc.JetStreamUsage()
if usage.Store != (state.Bytes + stats2.Bytes) {
t.Fatalf("Expected to track both streams, usage is %v, stream1 is %v, stream2 is %v", usage.Store, state.Bytes, stats2.Bytes)
}
// Make sure delete works.
mset2.Delete()
stats2 = mset2.State()
usage = gacc.JetStreamUsage()
if usage.Store != (state.Bytes + stats2.Bytes) {
t.Fatalf("Expected to track both streams, account is %v, stream1 is %v, stream2 is %v", usage.Store, state.Bytes, stats2.Bytes)
}
// Now drain the first one by consuming the messages.
o, err := mset.AddConsumer(workerModeConfig("WQ"))
if err != nil {
t.Fatalf("Expected no error with registered interest, got %v", err)
}
defer o.Delete()
for i := 0; i < toSend; i++ {
msg, err := nc.Request(o.RequestNextMsgSubject(), nil, time.Second)
if err != nil {
t.Fatalf("Unexpected error: %v", err)
}
msg.Respond(nil)
}
nc.Flush()
state = mset.State()
usage = gacc.JetStreamUsage()
if usage.Memory != 0 {
t.Fatalf("Expected usage memeory to be 0, got %d", usage.Memory)
}
// Now send twice the number of messages. Should receive an error at some point, and we will check usage against limits.
var errSeen string
for i := 0; i < toSend*2; i++ {
resp, _ := nc.Request("LIMITS", []byte("The quick brown fox jumped over the..."), 50*time.Millisecond)
if string(resp.Data) != server.OK {
errSeen = string(resp.Data)
break
}
}
if errSeen == "" {
t.Fatalf("Expected to see an error when exceeding the account limits")
}
state = mset.State()
usage = gacc.JetStreamUsage()
if usage.Memory > uint64(al.MaxMemory) {
t.Fatalf("Expected memory to not exceed limit of %d, got %d", al.MaxMemory, usage.Memory)
}
}
func TestJetStreamSimpleFileStorageRecovery(t *testing.T) {
base := runtime.NumGoroutine()
s := RunBasicJetStreamServer()
defer s.Shutdown()
config := s.JetStreamConfig()
if config == nil {
t.Fatalf("Expected non-nil config")
}
defer os.RemoveAll(config.StoreDir)
acc := s.GlobalAccount()
type obsi struct {
cfg server.ConsumerConfig
ack int
}
type info struct {
cfg server.StreamConfig
state server.StreamState
obs []obsi
}
ostate := make(map[string]info)
nid := nuid.New()
randomSubject := func() string {
nid.RandomizePrefix()
return fmt.Sprintf("SUBJ.%s", nid.Next())
}
nc := clientConnectToServer(t, s)
defer nc.Close()
numStreams := 10
for i := 1; i <= numStreams; i++ {
msetName := fmt.Sprintf("MMS-%d", i)
subjects := []string{randomSubject(), randomSubject(), randomSubject()}
msetConfig := server.StreamConfig{
Name: msetName,
Storage: server.FileStorage,
Subjects: subjects,
MaxMsgs: 100,
}
mset, err := acc.AddStream(&msetConfig)
if err != nil {
t.Fatalf("Unexpected error adding stream: %v", err)
}
defer mset.Delete()
toSend := rand.Intn(100) + 1
for n := 1; n <= toSend; n++ {
msg := fmt.Sprintf("Hello %d", n*i)
subj := subjects[rand.Intn(len(subjects))]
sendStreamMsg(t, nc, subj, msg)
}
// Create up to 5 consumers.
numObs := rand.Intn(5) + 1
var obs []obsi
for n := 1; n <= numObs; n++ {
oname := fmt.Sprintf("WQ-%d", n)
o, err := mset.AddConsumer(workerModeConfig(oname))
if err != nil {
t.Fatalf("Unexpected error: %v", err)
}
// Now grab some messages.
toReceive := rand.Intn(toSend) + 1
for r := 0; r < toReceive; r++ {
resp, _ := nc.Request(o.RequestNextMsgSubject(), nil, time.Second)
if resp != nil {
resp.Respond(nil)
}
}
obs = append(obs, obsi{o.Config(), toReceive})
}
ostate[msetName] = info{mset.Config(), mset.State(), obs}
}
pusage := acc.JetStreamUsage()
// Shutdown the server. Restart and make sure things come back.
s.Shutdown()
time.Sleep(200 * time.Millisecond)
delta := (runtime.NumGoroutine() - base)
if delta > 3 {
t.Logf("%d Go routines still exist post Shutdown()", delta)
time.Sleep(10 * time.Second)
}
s = RunBasicJetStreamServer()
defer s.Shutdown()
acc = s.GlobalAccount()
nusage := acc.JetStreamUsage()
if nusage != pusage {
t.Fatalf("Usage does not match after restore: %+v vs %+v", nusage, pusage)
}
for mname, info := range ostate {
mset, err := acc.LookupStream(mname)
if err != nil {
t.Fatalf("Expected to find a stream for %q", mname)
}
if state := mset.State(); state != info.state {
t.Fatalf("Stats do not match: %+v vs %+v", state, info.state)
}
if cfg := mset.Config(); !reflect.DeepEqual(cfg, info.cfg) {
t.Fatalf("Configs do not match: %+v vs %+v", cfg, info.cfg)
}
// Consumers.
if mset.NumConsumers() != len(info.obs) {
t.Fatalf("Number of consumers do not match: %d vs %d", mset.NumConsumers(), len(info.obs))
}
for _, oi := range info.obs {
if o := mset.LookupConsumer(oi.cfg.Durable); o != nil {
if uint64(oi.ack+1) != o.NextSeq() {
t.Fatalf("Consumer next seq is not correct: %d vs %d", oi.ack+1, o.NextSeq())
}
} else {
t.Fatalf("Expected to get an consumer")
}
}
}
}
func TestJetStreamRequestAPI(t *testing.T) {
s := RunBasicJetStreamServer()
defer s.Shutdown()
// Forced cleanup of all persisted state.
config := s.JetStreamConfig()
if config == nil {
t.Fatalf("Expected non-nil config")
}
defer os.RemoveAll(config.StoreDir)
// Client for API requests.
nc := clientConnectToServer(t, s)
defer nc.Close()
// This will return +OK if enabled.
resp, _ := nc.Request(server.JetStreamEnabled, nil, time.Second)
expectOKResponse(t, resp)
// This will get the current information about usage and limits for this account.
resp, err := nc.Request(server.JetStreamInfo, nil, time.Second)
if err != nil {
t.Fatalf("Unexpected error: %v", err)
}
var info server.JetStreamAccountStats
if err := json.Unmarshal(resp.Data, &info); err != nil {
t.Fatalf("Unexpected error: %v", err)
}
// Now create a stream.
msetCfg := server.StreamConfig{
Name: "MSET22",
Storage: server.FileStorage,
Subjects: []string{"foo", "bar", "baz"},
MaxMsgs: 100,
}
req, err := json.Marshal(msetCfg)
if err != nil {
t.Fatalf("Unexpected error: %v", err)
}
resp, _ = nc.Request(fmt.Sprintf(server.JetStreamCreateStreamT, msetCfg.Name), req, time.Second)
expectOKResponse(t, resp)
// Check that the name in config has to match the name in the subject
resp, _ = nc.Request(fmt.Sprintf(server.JetStreamCreateStreamT, "BOB"), req, time.Second)
if !strings.HasPrefix(string(resp.Data), "-ERR 'stream name in subject does not match request'") {
t.Fatalf("Got wrong error response: %q", resp.Data)
}
// Check that update works.
msetCfg.Subjects = []string{"foo", "bar", "baz"}
msetCfg.MaxBytes = 2222222
req, err = json.Marshal(msetCfg)
if err != nil {
t.Fatalf("Unexpected error: %v", err)
}
resp, _ = nc.Request(fmt.Sprintf(server.JetStreamUpdateStreamT, msetCfg.Name), req, time.Second)
expectOKResponse(t, resp)
// Now lookup info again and see that we can see the new stream.
resp, err = nc.Request(server.JetStreamInfo, nil, time.Second)
if err != nil {
t.Fatalf("Unexpected error: %v", err)
}
if err = json.Unmarshal(resp.Data, &info); err != nil {
t.Fatalf("Unexpected error: %v", err)
}
if info.Streams != 1 {
t.Fatalf("Expected to see 1 Stream, got %d", info.Streams)
}
// Make sure list works.
resp, err = nc.Request(server.JetStreamListStreams, nil, time.Second)
var names []string
if err = json.Unmarshal(resp.Data, &names); err != nil {
t.Fatalf("Unexpected error: %v", err)
}
if len(names) != 1 {
t.Fatalf("Expected only 1 stream but got %d", len(names))
}
if names[0] != msetCfg.Name {
t.Fatalf("Expected to get %q, but got %q", msetCfg.Name, names[0])
}
// Now send some messages, then we can poll for info on this stream.
toSend := 10
for i := 0; i < toSend; i++ {
nc.Request("foo", []byte("WELCOME JETSTREAM"), time.Second)
}
resp, err = nc.Request(fmt.Sprintf(server.JetStreamStreamInfoT, msetCfg.Name), nil, time.Second)
if err != nil {
t.Fatalf("Unexpected error: %v", err)
}
var msi server.StreamInfo
if err = json.Unmarshal(resp.Data, &msi); err != nil {
log.Fatalf("Unexpected error: %v", err)
}
if msi.State.Msgs != uint64(toSend) {
t.Fatalf("Expected to get %d msgs, got %d", toSend, msi.State.Msgs)
}
// Looking up one that is not there should yield an error.
resp, err = nc.Request(fmt.Sprintf(server.JetStreamStreamInfoT, "BOB"), nil, time.Second)
if err != nil {
t.Fatalf("Unexpected error: %v", err)
}
if string(resp.Data) != "-ERR 'stream not found'" {
t.Fatalf("Expected to get a not found error, got %q", resp.Data)
}
// Now create an consumer.
delivery := nats.NewInbox()
obsReq := server.CreateConsumerRequest{
Stream: msetCfg.Name,
Config: server.ConsumerConfig{DeliverSubject: delivery},
}
req, err = json.Marshal(obsReq)
if err != nil {
t.Fatalf("Unexpected error: %v", err)
}
resp, err = nc.Request(fmt.Sprintf(server.JetStreamCreateEphemeralConsumerT, msetCfg.Name), req, time.Second)
if err != nil {
t.Fatalf("Unexpected error: %v", err)
}
// Since we do not have interest this should have failed.
if !strings.HasPrefix(string(resp.Data), "-ERR 'consumer requires interest for delivery subject when ephemeral'") {
t.Fatalf("Got wrong error response: %q", resp.Data)
}
// Now create subscription and make sure we get +OK
sub, _ := nc.SubscribeSync(delivery)
nc.Flush()
resp, err = nc.Request(fmt.Sprintf(server.JetStreamCreateEphemeralConsumerT, msetCfg.Name), req, time.Second)
if err != nil {
t.Fatalf("Unexpected error: %v", err)
}
if !strings.HasPrefix(string(resp.Data), server.OK) {
t.Fatalf("Expected OK, got %q", resp.Data)
}
checkFor(t, 250*time.Millisecond, 10*time.Millisecond, func() error {
if nmsgs, _, _ := sub.Pending(); err != nil || nmsgs != toSend {
return fmt.Errorf("Did not receive correct number of messages: %d vs %d", nmsgs, toSend)
}
return nil
})
// Check that we get an error if the stream name in the subject does not match the config.
resp, err = nc.Request(fmt.Sprintf(server.JetStreamCreateEphemeralConsumerT, "BOB"), req, time.Second)
if err != nil {
t.Fatalf("Unexpected error: %v", err)
}
// Since we do not have interest this should have failed.
if !strings.HasPrefix(string(resp.Data), "-ERR 'stream name in subject does not match request'") {
t.Fatalf("Got wrong error response: %q", resp.Data)
}
// Get the list of all of the obervables for our stream.
resp, err = nc.Request(fmt.Sprintf(server.JetStreamConsumersT, msetCfg.Name), nil, time.Second)
if err != nil {
t.Fatalf("Unexpected error: %v", err)
}
var onames []string
if err = json.Unmarshal(resp.Data, &onames); err != nil {
t.Fatalf("Unexpected error: %v", err)
}
if len(onames) != 1 {
t.Fatalf("Expected only 1 consumer but got %d", len(onames))
}
// Now let's get info about our consumer.
resp, err = nc.Request(fmt.Sprintf(server.JetStreamConsumerInfoT, msetCfg.Name, onames[0]), nil, time.Second)
if err != nil {
t.Fatalf("Unexpected error: %v", err)
}
var oinfo server.ConsumerInfo
if err = json.Unmarshal(resp.Data, &oinfo); err != nil {
t.Fatalf("Unexpected error: %v", err)
}
// Do some sanity checking.
// Must match consumer.go
const randConsumerNameLen = 6
if len(oinfo.Name) != randConsumerNameLen {
t.Fatalf("Expected ephemeral name, got %q", oinfo.Name)
}
if len(oinfo.Config.Durable) != 0 {
t.Fatalf("Expected no durable name, but got %q", oinfo.Config.Durable)
}
if oinfo.Config.DeliverSubject != delivery {
t.Fatalf("Expected to have delivery subject of %q, got %q", delivery, oinfo.Config.DeliverSubject)
}
if oinfo.State.Delivered.ConsumerSeq != 10 {
t.Fatalf("Expected consumer delivered sequence of 10, got %d", oinfo.State.Delivered.ConsumerSeq)
}
if oinfo.State.AckFloor.ConsumerSeq != 10 {
t.Fatalf("Expected ack floor to be 10, got %d", oinfo.State.AckFloor.ConsumerSeq)
}
// Now delete the consumer.
resp, _ = nc.Request(fmt.Sprintf(server.JetStreamDeleteConsumerT, msetCfg.Name, onames[0]), nil, time.Second)
expectOKResponse(t, resp)
// Make sure we can't create a durable using the ephemeral API endpoint.
obsReq = server.CreateConsumerRequest{
Stream: msetCfg.Name,
Config: server.ConsumerConfig{Durable: "myd", DeliverSubject: delivery},
}
req, err = json.Marshal(obsReq)
if err != nil {
t.Fatalf("Unexpected error: %v", err)
}
resp, err = nc.Request(fmt.Sprintf(server.JetStreamCreateEphemeralConsumerT, msetCfg.Name), req, time.Second)
if err != nil {
t.Fatalf("Unexpected error: %v", err)
}
// Since we are using the ephemeral endpoint we can not configure a durable name.
if !strings.HasPrefix(string(resp.Data), "-ERR 'consumer expected to be ephemeral but a durable name was set'") {
t.Fatalf("Got wrong error response: %q", resp.Data)
}
// Now make sure we can create a durable on the subject with the proper name.
resp, err = nc.Request(fmt.Sprintf(server.JetStreamCreateConsumerT, msetCfg.Name, obsReq.Config.Durable), req, time.Second)
expectOKResponse(t, resp)
// Make sure empty in cfg does not work
obsReq2 := server.CreateConsumerRequest{
Stream: msetCfg.Name,
Config: server.ConsumerConfig{DeliverSubject: delivery},
}
req2, err := json.Marshal(obsReq2)
if err != nil {
t.Fatalf("Unexpected error: %v", err)
}
resp, err = nc.Request(fmt.Sprintf(server.JetStreamCreateConsumerT, msetCfg.Name, obsReq.Config.Durable), req2, time.Second)
if err != nil {
t.Fatalf("Unexpected error: %v", err)
}
if !strings.HasPrefix(string(resp.Data), "-ERR 'consumer expected to be durable but a durable name was not set'") {
t.Fatalf("Got wrong error response: %q", resp.Data)
}
// Now make sure we can't fake the consumer name.
resp, err = nc.Request(fmt.Sprintf(server.JetStreamCreateConsumerT, msetCfg.Name, "WRONG_CONSUMER_NAME"), req, time.Second)
if err != nil {
t.Fatalf("Unexpected error: %v", err)
}
if !strings.HasPrefix(string(resp.Data), "-ERR 'consumer name in subject does not match durable name in request'") {
t.Fatalf("Got wrong error response: %q", resp.Data)
}
// Now delete a msg.
resp, _ = nc.Request(fmt.Sprintf(server.JetStreamDeleteMsgT, msetCfg.Name), []byte("2"), time.Second)
expectOKResponse(t, resp)
// Now purge the stream.
resp, _ = nc.Request(fmt.Sprintf(server.JetStreamPurgeStreamT, msetCfg.Name), nil, time.Second)
expectOKResponse(t, resp)
// Now delete the stream.
resp, _ = nc.Request(fmt.Sprintf(server.JetStreamDeleteStreamT, msetCfg.Name), nil, time.Second)
expectOKResponse(t, resp)
// Now grab stats again.
// This will get the current information about usage and limits for this account.
resp, err = nc.Request(server.JetStreamInfo, nil, time.Second)
if err != nil {
t.Fatalf("Unexpected error: %v", err)
}
if err := json.Unmarshal(resp.Data, &info); err != nil {
t.Fatalf("Unexpected error: %v", err)
}
if info.Streams != 0 {
t.Fatalf("Expected no remaining streams, got %d", info.Streams)
}
// Now do templates.
mcfg := &server.StreamConfig{
Subjects: []string{"kv.*"},
Retention: server.LimitsPolicy,
MaxAge: time.Hour,
MaxMsgs: 4,
Storage: server.MemoryStorage,
Replicas: 1,
}
template := &server.StreamTemplateConfig{
Name: "kv",
Config: mcfg,
MaxStreams: 4,
}
req, err = json.Marshal(template)
if err != nil {
t.Fatalf("Unexpected error: %v", err)
}
// Check that the name in config has to match the name in the subject
resp, _ = nc.Request(fmt.Sprintf(server.JetStreamCreateTemplateT, "BOB"), req, time.Second)
if !strings.HasPrefix(string(resp.Data), "-ERR 'template name in subject does not match request'") {
t.Fatalf("Got wrong error response: %q", resp.Data)
}
resp, _ = nc.Request(fmt.Sprintf(server.JetStreamCreateTemplateT, template.Name), req, time.Second)
expectOKResponse(t, resp)
// Create a second one.
template.Name = "ss"
template.Config.Subjects = []string{"foo", "bar"}
req, err = json.Marshal(template)
if err != nil {
t.Fatalf("Unexpected error: %v", err)
}
resp, _ = nc.Request(fmt.Sprintf(server.JetStreamCreateTemplateT, template.Name), req, time.Second)
expectOKResponse(t, resp)
// Now grab the list of templates
resp, err = nc.Request(server.JetStreamListTemplates, nil, time.Second)
if err = json.Unmarshal(resp.Data, &names); err != nil {
t.Fatalf("Unexpected error: %v", err)
}
if len(names) != 2 {
t.Fatalf("Expected 2 templates but got %d", len(names))
}
sort.Strings(names)
if names[0] != "kv" {
t.Fatalf("Expected to get %q, but got %q", "kv", names[0])
}
if names[1] != "ss" {
t.Fatalf("Expected to get %q, but got %q", "ss", names[0])
}
// Now delete one.
// Test bad name.
resp, _ = nc.Request(fmt.Sprintf(server.JetStreamDeleteTemplateT, "bob"), nil, time.Second)
if !strings.HasPrefix(string(resp.Data), "-ERR 'no template found'") {
t.Fatalf("Got wrong error response: %q", resp.Data)
}
resp, _ = nc.Request(fmt.Sprintf(server.JetStreamDeleteTemplateT, "ss"), nil, time.Second)
expectOKResponse(t, resp)
resp, err = nc.Request(server.JetStreamListTemplates, nil, time.Second)
if err = json.Unmarshal(resp.Data, &names); err != nil {
t.Fatalf("Unexpected error: %v", err)
}
if len(names) != 1 {
t.Fatalf("Expected 1 template but got %d", len(names))
}
if names[0] != "kv" {
t.Fatalf("Expected to get %q, but got %q", "kv", names[0])
}
// First create a stream
sendStreamMsg(t, nc, "kv.22", "derek")
// Last do info
resp, err = nc.Request(fmt.Sprintf(server.JetStreamTemplateInfoT, "kv"), nil, time.Second)
if err != nil {
t.Fatalf("Unexpected error: %v", err)
}
var ti server.StreamTemplateInfo
if err = json.Unmarshal(resp.Data, &ti); err != nil {
t.Fatalf("Unexpected error: %v", err)
}
if len(ti.Streams) != 1 {
t.Fatalf("Expected 1 stream, got %d", len(ti.Streams))
}
if ti.Streams[0] != server.CanonicalName("kv.22") {
t.Fatalf("Expected stream with name %q, but got %q", server.CanonicalName("kv.22"), ti.Streams[0])
}
}
func TestJetStreamUpdateStream(t *testing.T) {
cases := []struct {
name string
mconfig *server.StreamConfig
}{
{name: "MemoryStore",
mconfig: &server.StreamConfig{
Name: "foo",
Retention: server.LimitsPolicy,
MaxAge: time.Hour,
Storage: server.MemoryStorage,
Replicas: 1,
}},
{name: "FileStore",
mconfig: &server.StreamConfig{
Name: "foo",
Retention: server.LimitsPolicy,
MaxAge: time.Hour,
Storage: server.FileStorage,
Replicas: 1,
}},
}
for _, c := range cases {
t.Run(c.name, func(t *testing.T) {
s := RunBasicJetStreamServer()
defer s.Shutdown()
if config := s.JetStreamConfig(); config != nil && config.StoreDir != "" {
defer os.RemoveAll(config.StoreDir)
}
mset, err := s.GlobalAccount().AddStream(c.mconfig)
if err != nil {
t.Fatalf("Unexpected error adding stream: %v", err)
}
defer mset.Delete()
// Test basic updates. We allow changing the subjects, limits, and no_ack along with replicas(TBD w/ cluster)
cfg := *c.mconfig
// Can't change name.
cfg.Name = "bar"
if err := mset.Update(&cfg); err == nil || !strings.Contains(err.Error(), "name must match") {
t.Fatalf("Expected error trying to update name")
}
// Can't change max consumers for now.
cfg = *c.mconfig
cfg.MaxConsumers = 10
if err := mset.Update(&cfg); err == nil || !strings.Contains(err.Error(), "can not change") {
t.Fatalf("Expected error trying to change MaxConsumers")
}
// Can't change storage types.
cfg = *c.mconfig
if cfg.Storage == server.FileStorage {
cfg.Storage = server.MemoryStorage
} else {
cfg.Storage = server.FileStorage
}
if err := mset.Update(&cfg); err == nil || !strings.Contains(err.Error(), "can not change") {
t.Fatalf("Expected error trying to change Storage")
}
// Can't change replicas > 1 for now.
cfg = *c.mconfig
cfg.Replicas = 10
if err := mset.Update(&cfg); err == nil || !strings.Contains(err.Error(), "maximum replicas") {
t.Fatalf("Expected error trying to change Replicas")
}
// Can't have a template set for now.
cfg = *c.mconfig
cfg.Template = "baz"
if err := mset.Update(&cfg); err == nil || !strings.Contains(err.Error(), "template") {
t.Fatalf("Expected error trying to change Template owner")
}
// Can't change limits policy.
cfg = *c.mconfig
cfg.Retention = server.WorkQueuePolicy
if err := mset.Update(&cfg); err == nil || !strings.Contains(err.Error(), "can not change") {
t.Fatalf("Expected error trying to change Retention")
}
// Now test changing limits.
nc := clientConnectToServer(t, s)
defer nc.Close()
pending := uint64(100)
for i := uint64(0); i < pending; i++ {
sendStreamMsg(t, nc, "foo", "0123456789")
}
pendingBytes := mset.State().Bytes
checkPending := func(msgs, bts uint64) {
t.Helper()
state := mset.State()
if state.Msgs != msgs {
t.Fatalf("Expected %d messages, got %d", msgs, state.Msgs)
}
if state.Bytes != bts {
t.Fatalf("Expected %d bytes, got %d", bts, state.Bytes)
}
}
checkPending(pending, pendingBytes)
// Update msgs to higher.
cfg = *c.mconfig
cfg.MaxMsgs = int64(pending * 2)
if err := mset.Update(&cfg); err != nil {
t.Fatalf("Unexpected error %v", err)
}
if mset.Config().MaxMsgs != cfg.MaxMsgs {
t.Fatalf("Expected the change to take effect, %d vs %d", mset.Config().MaxMsgs, cfg.MaxMsgs)
}
checkPending(pending, pendingBytes)
// Update msgs to lower.
cfg = *c.mconfig
cfg.MaxMsgs = int64(pending / 2)
if err := mset.Update(&cfg); err != nil {
t.Fatalf("Unexpected error %v", err)
}
if mset.Config().MaxMsgs != cfg.MaxMsgs {
t.Fatalf("Expected the change to take effect, %d vs %d", mset.Config().MaxMsgs, cfg.MaxMsgs)
}
checkPending(pending/2, pendingBytes/2)
// Now do bytes.
cfg = *c.mconfig
cfg.MaxBytes = int64(pendingBytes / 4)
if err := mset.Update(&cfg); err != nil {
t.Fatalf("Unexpected error %v", err)
}
if mset.Config().MaxBytes != cfg.MaxBytes {
t.Fatalf("Expected the change to take effect, %d vs %d", mset.Config().MaxBytes, cfg.MaxBytes)
}
checkPending(pending/4, pendingBytes/4)
// Now do age.
cfg = *c.mconfig
cfg.MaxAge = time.Millisecond
if err := mset.Update(&cfg); err != nil {
t.Fatalf("Unexpected error %v", err)
}
// Just wait a bit for expiration.
time.Sleep(5 * time.Millisecond)
if mset.Config().MaxAge != cfg.MaxAge {
t.Fatalf("Expected the change to take effect, %d vs %d", mset.Config().MaxAge, cfg.MaxAge)
}
checkPending(0, 0)
// Now put back to original.
cfg = *c.mconfig
if err := mset.Update(&cfg); err != nil {
t.Fatalf("Unexpected error %v", err)
}
for i := uint64(0); i < pending; i++ {
sendStreamMsg(t, nc, "foo", "0123456789")
}
// subject changes.
// Add in a subject first.
cfg = *c.mconfig
cfg.Subjects = []string{"foo", "bar"}
if err := mset.Update(&cfg); err != nil {
t.Fatalf("Unexpected error %v", err)
}
// Make sure we can still send to foo.
sendStreamMsg(t, nc, "foo", "0123456789")
// And we can now send to bar.
sendStreamMsg(t, nc, "bar", "0123456789")
// Now delete both and change to baz only.
cfg.Subjects = []string{"baz"}
if err := mset.Update(&cfg); err != nil {
t.Fatalf("Unexpected error %v", err)
}
// Make sure we do not get response acks for "foo" or "bar".
if resp, err := nc.Request("foo", nil, 25*time.Millisecond); err == nil || resp != nil {
t.Fatalf("Expected no response from jetstream for deleted subject: %q", "foo")
}
if resp, err := nc.Request("bar", nil, 25*time.Millisecond); err == nil || resp != nil {
t.Fatalf("Expected no response from jetstream for deleted subject: %q", "bar")
}
// Make sure we can send to "baz"
sendStreamMsg(t, nc, "baz", "0123456789")
if nmsgs := mset.State().Msgs; nmsgs != pending+3 {
t.Fatalf("Expected %d msgs, got %d", pending+3, nmsgs)
}
// FileStore restarts for config save.
cfg = *c.mconfig
if cfg.Storage == server.FileStorage {
cfg.Subjects = []string{"foo", "bar"}
cfg.MaxMsgs = 2222
cfg.MaxBytes = 3333333
cfg.MaxAge = 22 * time.Hour
if err := mset.Update(&cfg); err != nil {
t.Fatalf("Unexpected error %v", err)
}
// Pull since certain defaults etc are set in processing.
cfg = mset.Config()
// Restart the server.
// Capture port since it was dynamic.
u, _ := url.Parse(s.ClientURL())
port, _ := strconv.Atoi(u.Port())
// Stop current server.
s.Shutdown()
// Restart.
s = RunJetStreamServerOnPort(port)
defer s.Shutdown()
mset, err = s.GlobalAccount().LookupStream(cfg.Name)
if err != nil {
t.Fatalf("Expected to find a stream for %q", cfg.Name)
}
restored_cfg := mset.Config()
if !reflect.DeepEqual(cfg, restored_cfg) {
t.Fatalf("restored configuration does not match: \n%+v\n vs \n%+v", restored_cfg, cfg)
}
}
})
}
}
func TestJetStreamDeleteMsg(t *testing.T) {
cases := []struct {
name string
mconfig *server.StreamConfig
}{
{name: "MemoryStore",
mconfig: &server.StreamConfig{
Name: "foo",
Retention: server.LimitsPolicy,
MaxAge: time.Hour,
Storage: server.MemoryStorage,
Replicas: 1,
}},
{name: "FileStore",
mconfig: &server.StreamConfig{
Name: "foo",
Retention: server.LimitsPolicy,
MaxAge: time.Hour,
Storage: server.FileStorage,
Replicas: 1,
}},
}
for _, c := range cases {
t.Run(c.name, func(t *testing.T) {
s := RunBasicJetStreamServer()
defer s.Shutdown()
if config := s.JetStreamConfig(); config != nil && config.StoreDir != "" {
defer os.RemoveAll(config.StoreDir)
}
mset, err := s.GlobalAccount().AddStream(c.mconfig)
if err != nil {
t.Fatalf("Unexpected error adding stream: %v", err)
}
nc := clientConnectToServer(t, s)
defer nc.Close()
pubTen := func() {
t.Helper()
for i := 0; i < 10; i++ {
nc.Publish("foo", []byte("Hello World!"))
}
nc.Flush()
}
pubTen()
state := mset.State()
if state.Msgs != 10 {
t.Fatalf("Expected 10 messages, got %d", state.Msgs)
}
bytesPerMsg := state.Bytes / 10
if bytesPerMsg == 0 {
t.Fatalf("Expected non-zero bytes for msg size")
}
deleteAndCheck := func(seq, expectedFirstSeq uint64) {
t.Helper()
beforeState := mset.State()
if removed, _ := mset.DeleteMsg(seq); !removed {
t.Fatalf("Expected the delete of sequence %d to succeed", seq)
}
expectedState := beforeState
expectedState.Msgs--
expectedState.Bytes -= bytesPerMsg
expectedState.FirstSeq = expectedFirstSeq
afterState := mset.State()
if afterState != expectedState {
t.Fatalf("Stats not what we expected. Expected %+v, got %+v\n", expectedState, afterState)
}
}
// Delete one from the middle
deleteAndCheck(5, 1)
// Now make sure sequences are updated properly.
// Delete first msg.
deleteAndCheck(1, 2)
// Now last
deleteAndCheck(10, 2)
// Now gaps.
deleteAndCheck(3, 2)
deleteAndCheck(2, 4)
mset.Purge()
// Put ten more one.
pubTen()
deleteAndCheck(11, 12)
deleteAndCheck(15, 12)
deleteAndCheck(16, 12)
deleteAndCheck(20, 12)
// Only file storage beyond here.
if c.mconfig.Storage == server.MemoryStorage {
return
}
// Shutdown the server.
s.Shutdown()
s = RunBasicJetStreamServer()
defer s.Shutdown()
mset, err = s.GlobalAccount().LookupStream("foo")
if err != nil {
t.Fatalf("Expected to get the stream back")
}
expected := server.StreamState{Msgs: 6, Bytes: 6 * bytesPerMsg, FirstSeq: 12, LastSeq: 20}
state = mset.State()
if state != expected {
t.Fatalf("State not what we expected. Expected %+v, got %+v\n", expected, state)
}
// Now create an consumer and make sure we get the right sequence.
nc = clientConnectToServer(t, s)
defer nc.Close()
delivery := nats.NewInbox()
sub, _ := nc.SubscribeSync(delivery)
nc.Flush()
o, err := mset.AddConsumer(&server.ConsumerConfig{DeliverSubject: delivery, FilterSubject: "foo"})
if err != nil {
t.Fatalf("Unexpected error: %v", err)
}
expectedStoreSeq := []uint64{12, 13, 14, 17, 18, 19}
for i := 0; i < 6; i++ {
m, err := sub.NextMsg(time.Second)
if err != nil {
t.Fatalf("Unexpected error: %v", err)
}
if o.StreamSeqFromReply(m.Reply) != expectedStoreSeq[i] {
t.Fatalf("Expected store seq of %d, got %d", expectedStoreSeq[i], o.StreamSeqFromReply(m.Reply))
}
}
})
}
}
func TestJetStreamNextMsgNoInterest(t *testing.T) {
cases := []struct {
name string
mconfig *server.StreamConfig
}{
{name: "MemoryStore",
mconfig: &server.StreamConfig{
Name: "foo",
Retention: server.LimitsPolicy,
MaxAge: time.Hour,
Storage: server.MemoryStorage,
Replicas: 1,
}},
{name: "FileStore",
mconfig: &server.StreamConfig{
Name: "foo",
Retention: server.LimitsPolicy,
MaxAge: time.Hour,
Storage: server.FileStorage,
Replicas: 1,
}},
}
for _, c := range cases {
t.Run(c.name, func(t *testing.T) {
s := RunBasicJetStreamServer()
defer s.Shutdown()
config := s.JetStreamConfig()
if config == nil {
t.Fatalf("Expected non-nil config")
}
defer os.RemoveAll(config.StoreDir)
cfg := &server.StreamConfig{Name: "foo", Storage: server.FileStorage}
mset, err := s.GlobalAccount().AddStream(cfg)
if err != nil {
t.Fatalf("Unexpected error adding stream: %v", err)
}
nc := clientConnectWithOldRequest(t, s)
defer nc.Close()
// Now create an consumer and make sure it functions properly.
o, err := mset.AddConsumer(workerModeConfig("WQ"))
if err != nil {
t.Fatalf("Expected no error with registered interest, got %v", err)
}
defer o.Delete()
nextSubj := o.RequestNextMsgSubject()
// Queue up a worker but use a short time out.
if _, err := nc.Request(nextSubj, nil, time.Millisecond); err != nats.ErrTimeout {
t.Fatalf("Expected a timeout error and no response with acks suppressed")
}
// Now send a message, the worker from above will still be known but we want to make
// sure the system detects that so we will do a request for next msg right behind it.
nc.Publish("foo", []byte("OK"))
if msg, err := nc.Request(nextSubj, nil, 5*time.Millisecond); err != nil {
t.Fatalf("Unexpected error: %v", err)
} else {
msg.Respond(nil) // Ack
}
// Now queue up 10 workers.
for i := 0; i < 10; i++ {
if _, err := nc.Request(nextSubj, nil, time.Microsecond); err != nats.ErrTimeout {
t.Fatalf("Expected a timeout error and no response with acks suppressed")
}
}
// Now publish ten messages.
for i := 0; i < 10; i++ {
nc.Publish("foo", []byte("OK"))
}
nc.Flush()
for i := 0; i < 10; i++ {
if msg, err := nc.Request(nextSubj, nil, 10*time.Millisecond); err != nil {
t.Fatalf("Unexpected error for %d: %v", i, err)
} else {
msg.Respond(nil) // Ack
}
}
nc.Flush()
ostate := o.Info().State
if ostate.AckFloor.StreamSeq != 11 || len(ostate.Pending) > 0 {
t.Fatalf("Inconsistent ack state: %+v", ostate)
}
})
}
}
func TestJetStreamTemplateBasics(t *testing.T) {
s := RunBasicJetStreamServer()
defer s.Shutdown()
config := s.JetStreamConfig()
if config == nil {
t.Fatalf("Expected non-nil config")
}
defer os.RemoveAll(config.StoreDir)
acc := s.GlobalAccount()
mcfg := &server.StreamConfig{
Subjects: []string{"kv.*"},
Retention: server.LimitsPolicy,
MaxAge: time.Hour,
MaxMsgs: 4,
Storage: server.MemoryStorage,
Replicas: 1,
}
template := &server.StreamTemplateConfig{
Name: "kv",
Config: mcfg,
MaxStreams: 4,
}
if _, err := acc.AddStreamTemplate(template); err != nil {
t.Fatalf("Unexpected error: %v", err)
}
if templates := acc.Templates(); len(templates) != 1 {
t.Fatalf("Expected to get array of 1 template, got %d", len(templates))
}
if err := acc.DeleteStreamTemplate("foo"); err == nil {
t.Fatalf("Expected an error for non-existent template")
}
if err := acc.DeleteStreamTemplate(template.Name); err != nil {
t.Fatalf("Unexpected error: %v", err)
}
if templates := acc.Templates(); len(templates) != 0 {
t.Fatalf("Expected to get array of no templates, got %d", len(templates))
}
// Add it back in and test basics
if _, err := acc.AddStreamTemplate(template); err != nil {
t.Fatalf("Unexpected error: %v", err)
}
// Connect a client and send a message which should trigger the stream creation.
nc := clientConnectToServer(t, s)
defer nc.Close()
sendStreamMsg(t, nc, "kv.22", "derek")
sendStreamMsg(t, nc, "kv.33", "cat")
sendStreamMsg(t, nc, "kv.44", "sam")
sendStreamMsg(t, nc, "kv.55", "meg")
if nms := acc.NumStreams(); nms != 4 {
t.Fatalf("Expected 4 auto-created streams, got %d", nms)
}
// This one should fail due to max.
if resp, err := nc.Request("kv.99", nil, 100*time.Millisecond); err == nil {
t.Fatalf("Expected this to fail, but got %q", resp.Data)
}
// Now delete template and make sure the underlying streams go away too.
if err := acc.DeleteStreamTemplate(template.Name); err != nil {
t.Fatalf("Unexpected error: %v", err)
}
if nms := acc.NumStreams(); nms != 0 {
t.Fatalf("Expected no auto-created streams to remain, got %d", nms)
}
}
func TestJetStreamTemplateFileStoreRecovery(t *testing.T) {
s := RunBasicJetStreamServer()
defer s.Shutdown()
config := s.JetStreamConfig()
if config == nil {
t.Fatalf("Expected non-nil config")
}
defer os.RemoveAll(config.StoreDir)
acc := s.GlobalAccount()
mcfg := &server.StreamConfig{
Subjects: []string{"kv.*"},
Retention: server.LimitsPolicy,
MaxAge: time.Hour,
MaxMsgs: 50,
Storage: server.FileStorage,
Replicas: 1,
}
template := &server.StreamTemplateConfig{
Name: "kv",
Config: mcfg,
MaxStreams: 100,
}
if _, err := acc.AddStreamTemplate(template); err != nil {
t.Fatalf("Unexpected error: %v", err)
}
// Make sure we can not add in a stream on our own with a template owner.
badCfg := *mcfg
badCfg.Name = "bad"
badCfg.Template = "kv"
if _, err := acc.AddStream(&badCfg); err == nil {
t.Fatalf("Expected error adding stream with direct template owner")
}
// Connect a client and send a message which should trigger the stream creation.
nc := clientConnectToServer(t, s)
defer nc.Close()
for i := 1; i <= 100; i++ {
subj := fmt.Sprintf("kv.%d", i)
for x := 0; x < 50; x++ {
sendStreamMsg(t, nc, subj, "Hello")
}
}
nc.Flush()
if nms := acc.NumStreams(); nms != 100 {
t.Fatalf("Expected 100 auto-created streams, got %d", nms)
}
// Capture port since it was dynamic.
u, _ := url.Parse(s.ClientURL())
port, _ := strconv.Atoi(u.Port())
restartServer := func() {
t.Helper()
// Stop current server.
s.Shutdown()
// Restart.
s = RunJetStreamServerOnPort(port)
}
// Restart.
restartServer()
defer s.Shutdown()
acc = s.GlobalAccount()
if nms := acc.NumStreams(); nms != 100 {
t.Fatalf("Expected 100 auto-created streams, got %d", nms)
}
tmpl, err := acc.LookupStreamTemplate(template.Name)
if err != nil {
t.Fatalf("Unexpected error: %v", err)
}
// Make sure t.Delete() survives restart.
tmpl.Delete()
// Restart.
restartServer()
defer s.Shutdown()
acc = s.GlobalAccount()
if nms := acc.NumStreams(); nms != 0 {
t.Fatalf("Expected no auto-created streams, got %d", nms)
}
if _, err := acc.LookupStreamTemplate(template.Name); err == nil {
t.Fatalf("Expected to not find the template after restart")
}
}
// This will be testing our ability to conditionally rewrite subjects for last mile
// when working with JetStream. Consumers receive messages that have their subjects
// rewritten to match the original subject. NATS routing is all subject based except
// for the last mile to the client.
func TestJetStreamSingleInstanceRemoteAccess(t *testing.T) {
ca := createClusterWithName(t, "A", 1)
defer shutdownCluster(ca)
cb := createClusterWithName(t, "B", 1, ca)
defer shutdownCluster(cb)
// Connect our leafnode server to cluster B.
opts := cb.opts[rand.Intn(len(cb.opts))]
s, _ := runSolicitLeafServer(opts)
defer s.Shutdown()
checkLeafNodeConnected(t, s)
if err := s.EnableJetStream(nil); err != nil {
t.Fatalf("Expected no error, got %v", err)
}
mset, err := s.GlobalAccount().AddStream(&server.StreamConfig{Name: "foo", Storage: server.MemoryStorage})
if err != nil {
t.Fatalf("Unexpected error adding stream: %v", err)
}
defer mset.Delete()
nc := clientConnectToServer(t, s)
defer nc.Close()
toSend := 10
for i := 0; i < toSend; i++ {
sendStreamMsg(t, nc, "foo", "Hello World!")
}
// Now create a push based consumer. Connected to the non-jetstream server via a random server on cluster A.
sl := ca.servers[rand.Intn(len(ca.servers))]
nc2 := clientConnectToServer(t, sl)
defer nc2.Close()
sub, _ := nc2.SubscribeSync(nats.NewInbox())
defer sub.Unsubscribe()
// Need to wait for interest to propagate across GW.
nc2.Flush()
time.Sleep(25 * time.Millisecond)
o, err := mset.AddConsumer(&server.ConsumerConfig{DeliverSubject: sub.Subject})
if err != nil {
t.Fatalf("Expected no error with registered interest, got %v", err)
}
defer o.Delete()
checkSubPending := func(numExpected int) {
t.Helper()
checkFor(t, 200*time.Millisecond, 10*time.Millisecond, func() error {
if nmsgs, _, _ := sub.Pending(); err != nil || nmsgs != numExpected {
return fmt.Errorf("Did not receive correct number of messages: %d vs %d", nmsgs, numExpected)
}
return nil
})
}
checkSubPending(toSend)
checkMsg := func(m *nats.Msg, err error, i int) {
t.Helper()
if err != nil {
t.Fatalf("Got an error checking message: %v", err)
}
if m.Subject != "foo" {
t.Fatalf("Expected original subject of %q, but got %q", "foo", m.Subject)
}
// Now check that reply subject exists and has a sequence as the last token.
if seq := o.SeqFromReply(m.Reply); seq != uint64(i) {
t.Fatalf("Expected sequence of %d , got %d", i, seq)
}
}
// Now check the subject to make sure its the original one.
for i := 1; i <= toSend; i++ {
m, err := sub.NextMsg(time.Second)
checkMsg(m, err, i)
}
// Now do a pull based consumer.
o, err = mset.AddConsumer(workerModeConfig("p"))
if err != nil {
t.Fatalf("Expected no error with registered interest, got %v", err)
}
defer o.Delete()
nextMsg := o.RequestNextMsgSubject()
for i := 1; i <= toSend; i++ {
m, err := nc.Request(nextMsg, nil, time.Second)
checkMsg(m, err, i)
}
}
func clientConnectToServerWithUP(t *testing.T, opts *server.Options, user, pass string) *nats.Conn {
curl := fmt.Sprintf("nats://%s:%s@%s:%d", user, pass, opts.Host, opts.Port)
nc, err := nats.Connect(curl, nats.Name("JS-UP-TEST"), nats.ReconnectWait(5*time.Millisecond), nats.MaxReconnects(-1))
if err != nil {
t.Fatalf("Failed to create client: %v", err)
}
return nc
}
func TestJetStreamMultipleAccountsBasics(t *testing.T) {
conf := createConfFile(t, []byte(`
listen: 127.0.0.1:-1
jetstream: enabled
accounts: {
A: {
jetstream: enabled
users: [ {user: ua, password: pwd} ]
},
B: {
jetstream: {max_mem: 1GB, max_store: 1TB, max_streams: 10, max_consumers: 1k}
users: [ {user: ub, password: pwd} ]
},
C: {
users: [ {user: uc, password: pwd} ]
},
}
`))
defer os.Remove(conf)
s, opts := RunServerWithConfig(conf)
defer s.Shutdown()
if !s.JetStreamEnabled() {
t.Fatalf("Expected JetStream to be enabled")
}
nc := clientConnectToServerWithUP(t, opts, "ua", "pwd")
defer nc.Close()
resp, _ := nc.Request(server.JetStreamEnabled, nil, 250*time.Millisecond)
expectOKResponse(t, resp)
nc = clientConnectToServerWithUP(t, opts, "ub", "pwd")
defer nc.Close()
resp, _ = nc.Request(server.JetStreamEnabled, nil, 250*time.Millisecond)
expectOKResponse(t, resp)
resp, err := nc.Request(server.JetStreamInfo, nil, time.Second)
if err != nil {
t.Fatalf("Unexpected error: %v", err)
}
var info server.JetStreamAccountStats
if err := json.Unmarshal(resp.Data, &info); err != nil {
t.Fatalf("Unexpected error: %v", err)
}
limits := info.Limits
if limits.MaxStreams != 10 {
t.Fatalf("Expected 10 for MaxStreams, got %d", limits.MaxStreams)
}
if limits.MaxConsumers != 1000 {
t.Fatalf("Expected MaxConsumers of %d, got %d", 1000, limits.MaxConsumers)
}
gb := int64(1024 * 1024 * 1024)
if limits.MaxMemory != gb {
t.Fatalf("Expected MaxMemory to be 1GB, got %d", limits.MaxMemory)
}
if limits.MaxStore != 1024*gb {
t.Fatalf("Expected MaxStore to be 1TB, got %d", limits.MaxStore)
}
// Check C is not enabled.
nc = clientConnectToServerWithUP(t, opts, "uc", "pwd")
defer nc.Close()
if _, err = nc.Request(server.JetStreamEnabled, nil, 250*time.Millisecond); err == nil {
t.Fatalf("Expected no response for account c")
}
}
////////////////////////////////////////
// Benchmark placeholders
////////////////////////////////////////
func TestJetStreamPubPerf(t *testing.T) {
// Uncomment to run, holding place for now.
t.SkipNow()
s := RunBasicJetStreamServer()
defer s.Shutdown()
if config := s.JetStreamConfig(); config != nil {
defer os.RemoveAll(config.StoreDir)
}
acc := s.GlobalAccount()
msetConfig := server.StreamConfig{
Name: "sr22",
Storage: server.FileStorage,
Subjects: []string{"foo"},
}
if _, err := acc.AddStream(&msetConfig); err != nil {
t.Fatalf("Unexpected error adding stream: %v", err)
}
nc := clientConnectToServer(t, s)
defer nc.Close()
toSend := 2000000
numProducers := 1
payload := []byte("Hello World")
startCh := make(chan bool)
var wg sync.WaitGroup
for n := 0; n < numProducers; n++ {
wg.Add(1)
go func() {
defer wg.Done()
<-startCh
for i := 0; i < int(toSend)/numProducers; i++ {
nc.Publish("foo", payload)
}
nc.Flush()
}()
}
// Wait for Go routines.
time.Sleep(10 * time.Millisecond)
start := time.Now()
close(startCh)
wg.Wait()
tt := time.Since(start)
fmt.Printf("time is %v\n", tt)
fmt.Printf("%.0f msgs/sec\n", float64(toSend)/tt.Seconds())
}
func TestJetStreamPubSubPerf(t *testing.T) {
// Uncomment to run, holding place for now.
t.SkipNow()
s := RunBasicJetStreamServer()
defer s.Shutdown()
if config := s.JetStreamConfig(); config != nil {
defer os.RemoveAll(config.StoreDir)
}
acc := s.GlobalAccount()
msetConfig := server.StreamConfig{
Name: "MSET22",
Storage: server.FileStorage,
Subjects: []string{"foo"},
}
mset, err := acc.AddStream(&msetConfig)
if err != nil {
t.Fatalf("Unexpected error adding stream: %v", err)
}
nc := clientConnectToServer(t, s)
defer nc.Close()
var toSend = 1000000
var received int
done := make(chan bool)
delivery := "d"
nc.Subscribe(delivery, func(m *nats.Msg) {
received++
if received >= toSend {
done <- true
}
})
nc.Flush()
_, err = mset.AddConsumer(&server.ConsumerConfig{
DeliverSubject: delivery,
AckPolicy: server.AckNone,
})
if err != nil {
t.Fatalf("Error creating consumer: %v", err)
}
payload := []byte("Hello World")
start := time.Now()
for i := 0; i < toSend; i++ {
nc.Publish("foo", payload)
}
<-done
tt := time.Since(start)
fmt.Printf("time is %v\n", tt)
fmt.Printf("%.0f msgs/sec\n", float64(toSend)/tt.Seconds())
}
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