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Fix race condition between server shutdown and consumer info #6356

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merged 2 commits into from
Jan 9, 2025
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Fix race condition between server shutdown and consumer info #6356

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f3aedf5
Fix race condition between server shutdown and consumer info
neilalexander Jan 9, 2025
7e92926
Fix race in `TestJetStreamClusterGhostEphemeralsAfterRestart`
neilalexander Jan 9, 2025
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10 changes: 7 additions & 3 deletions server/jetstream_api.go
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Original file line number Diff line number Diff line change
Expand Up @@ -4701,10 +4701,14 @@ func (s *Server) jsConsumerInfoRequest(sub *subscription, c *client, _ *Account,
return
}

js.mu.RLock()
meta := cc.meta
js.mu.RUnlock()

// Since these could wait on the Raft group lock, don't do so under the JS lock.
ourID := cc.meta.ID()
groupLeader := cc.meta.GroupLeader()
groupCreated := cc.meta.Created()
ourID := meta.ID()
groupLeader := meta.GroupLeader()
groupCreated := meta.Created()

js.mu.RLock()
isLeader, sa, ca := cc.isLeader(), js.streamAssignment(acc.Name, streamName), js.consumerAssignment(acc.Name, streamName, consumerName)
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