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[ADDED] LeafNode: Support for s2 compression

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This is similar to PR #4115 but for LeafNodes.
Compression mode can be set on both side (the accept and in remotes).
```
leafnodes {
   port: 7422
   compression: s2_best
   remotes [
       {
         url: "nats://host2:74222"
         compression: s2_better
       }
   ]
}
```
Possible modes are similar than for routes (described in PR #4115),
except that when not defined we default to `s2_auto`.

Signed-off-by: Ivan Kozlovic <ivan@synadia.com>
This commit is contained in:
Ivan Kozlovic
2023-05-15 17:42:39 -06:00
parent e07ccf9cc1
commit 67498af2dc
15 changed files with 1904 additions and 208 deletions
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48
server/monitor.go
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@@ -2102,18 +2102,19 @@ type LeafzOptions struct {
// LeafInfo has detailed information on each remote leafnode connection.
type LeafInfo struct {
Name string `json:"name"`
IsSpoke bool `json:"is_spoke"`
Account string `json:"account"`
IP string `json:"ip"`
Port int `json:"port"`
RTT string `json:"rtt,omitempty"`
InMsgs int64 `json:"in_msgs"`
OutMsgs int64 `json:"out_msgs"`
InBytes int64 `json:"in_bytes"`
OutBytes int64 `json:"out_bytes"`
NumSubs uint32 `json:"subscriptions"`
Subs []string `json:"subscriptions_list,omitempty"`
Name string `json:"name"`
IsSpoke bool `json:"is_spoke"`
Account string `json:"account"`
IP string `json:"ip"`
Port int `json:"port"`
RTT string `json:"rtt,omitempty"`
InMsgs int64 `json:"in_msgs"`
OutMsgs int64 `json:"out_msgs"`
InBytes int64 `json:"in_bytes"`
OutBytes int64 `json:"out_bytes"`
NumSubs uint32 `json:"subscriptions"`
Subs []string `json:"subscriptions_list,omitempty"`
Compression string `json:"compression,omitempty"`
}
// Leafz returns a Leafz structure containing information about leafnodes.
@@ -2143,17 +2144,18 @@ func (s *Server) Leafz(opts *LeafzOptions) (*Leafz, error) {
for _, ln := range lconns {
ln.mu.Lock()
lni := &LeafInfo{
Name: ln.leaf.remoteServer,
IsSpoke: ln.isSpokeLeafNode(),
Account: ln.acc.Name,
IP: ln.host,
Port: int(ln.port),
RTT: ln.getRTT().String(),
InMsgs: atomic.LoadInt64(&ln.inMsgs),
OutMsgs: ln.outMsgs,
InBytes: atomic.LoadInt64(&ln.inBytes),
OutBytes: ln.outBytes,
NumSubs: uint32(len(ln.subs)),
Name: ln.leaf.remoteServer,
IsSpoke: ln.isSpokeLeafNode(),
Account: ln.acc.Name,
IP: ln.host,
Port: int(ln.port),
RTT: ln.getRTT().String(),
InMsgs: atomic.LoadInt64(&ln.inMsgs),
OutMsgs: ln.outMsgs,
InBytes: atomic.LoadInt64(&ln.inBytes),
OutBytes: ln.outBytes,
NumSubs: uint32(len(ln.subs)),
Compression: ln.leaf.compression,
}
if opts != nil && opts.Subscriptions {
lni.Subs = make([]string, 0, len(ln.subs))