This will solve the issue of naming the durable per server for
the "retained messages" stream in situation where a cluster
of servers would not have JetStream defined but connect to another
cluster that has it. All the servers within the cluster without
JetStream would cause the durable's delivery subject to be updated
to the last server starting the durable.
Updated the check for mqtt requiring JetStream if running in
standalone mode to check that no leafnode configuration is present.
Replaced use of fmt.Errorf() when the string was static with
errors created with errors.New(). Updated tests that were checking
for errors to use those errors instead of repeating the string.
Added test that has a hub cluster with JS enabled and a remote server
that has mqtt{} without JetStream and ensure that this works.
Signed-off-by: Ivan Kozlovic <ivan@synadia.com>
Some issues that have been fixed would manifest by timeouts on
connect, unexpected memory usage on high publish message rate.
Some details:
- Replies were not always GW routed properly because we were looking
at the wrong connection's rsubs
- GW routed replies would not be found because they were tracked
in the subscription's client object, which may not be the same used
to send the reply
- Increased the mqtt timeout to wait for JS replies since in some
tests it was sometimes taking more than the original 2 seconds
- Incoming gateway messages destined for an MQTT internal subscription
may have been rejected as a no interest if the account had service imports
- Don't use time.After(), instead create explicit timer so it can
be stopped when not timing out.
- Unnecessary copy of a slice since we were converting to a string anyway.
Signed-off-by: Ivan Kozlovic <ivan@synadia.com>
In cluster mode, a sub connects to server 1, another on server 2.
A publisher connects to server 2 and publishes a retained message.
If both subs restart they would properly receive the retained message.
However, if the publisher sens an empty message that "removes" the
retained message for this topic, and then consumer that connects to
server 1 restarts, it would not receive the retained message as it
should.
Signed-off-by: Ivan Kozlovic <ivan@synadia.com>
we want to auto-suppress JetStream traffic on normal accounts.
We also now track remote accounts so that client info headers can be remapped.
Signed-off-by: Derek Collison <derek@nats.io>
If running the server with command lines:
```
nats-server --tlsverify --tlscert "cert.pem" --tlskey "key.pem"
```
the default ciphers would not be set, however, they would using this
equivalent config:
```
tls: {
verify: true
cert_file: "cert.pem"
key_file: "key.pem"
}
```
Reported by @DavidSimner
Signed-off-by: Ivan Kozlovic <ivan@synadia.com>
For internal callbacks we can not rely on the GW routed reply tracking
since internal clients can change who receives vs sends response.
Signed-off-by: Derek Collison <derek@nats.io>
In a setup with shared system account and a cluster of leaf nodes,
the JS requests did not contain the origin cluster, which caused
assets to possibly be created in the HUB. With this change, the
assets will be created in the origin cluster.
Also, removed use of acc.JetStreamEnabled() but instead fail
start of the server if mqtt is enabled in standalone mode and JS
is not enabled. If JS is enabled, we will get proper error if
account has no JS enabled.
Signed-off-by: Ivan Kozlovic <ivan@synadia.com>
In a setup with a cluster of servers to which 2 different leaf nodes
attach to, and queue subs are attached to one of the leaf, if the
leaf server is restarted and reconnects to another server in the
cluster, there was a risk for an infinite message loop between
some servers in the "hub" cluster.
Signed-off-by: Ivan Kozlovic <ivan@synadia.com>
Websocket is currently not supported for MQTT clients. When a
client tries to connect with websocket protocol to the MQTT port,
the error message: `mid:9 - not connected` would be logged, which
is not really telling.
The server will now guess if the connection was websocket and report
a more appropriate error message, such as:
```
invalid connection, websocket currently not supported
```
Resolves#2126
Signed-off-by: Ivan Kozlovic <ivan@synadia.com>
