The controller takes one announcement at a time

A merge's handler builds for minutes and keeps its own delivery alive; the announcements handed over behind it timed out on the client and came back, and a merge that came back rebuilt what it had just built, five times over (novox/hq issue 175). MaxAckPending 1 on the events consumer: the server holds the rest.
2026-09-30 21:37:53 +02:00
parent 1a724f20fe
commit 474f68b34c
4 changed files with 27 additions and 3 deletions
@@ -179,6 +179,7 @@ func (j *JetStream) EnsureConsumer(c Consumer) error {
 		AckPolicy:      nats.AckExplicitPolicy,
 		AckWait:        time.Duration(c.AckWaitSeconds) * time.Second,
 		MaxDeliver:     c.MaxDeliver,
+		MaxAckPending:  c.MaxAckPending,
 		DeliverGroup:   c.Queue,
 		DeliverSubject: "",
 		Description:    c.Why,