raft: increase raft notify buffer. (#6863)

* Increase raft notify buffer. Fixes #6852. Increasing the buffer helps recovering from leader flapping. It lowers the chances of the flapping leader to get into a deadlock situation like described in #6852.
hashicorp · Jan 22, 2020 · 7d6ea82 · 7d6ea82
1 parent 11a571d
commit 7d6ea82
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/agent/consul/server.go b/agent/consul/server.go
@@ -725,7 +725,7 @@ func (s *Server) setupRaft() error {
 	}
 
 	// Set up a channel for reliable leader notifications.
-	raftNotifyCh := make(chan bool, 1)
+	raftNotifyCh := make(chan bool, 10)
 	s.config.RaftConfig.NotifyCh = raftNotifyCh
 	s.raftNotifyCh = raftNotifyCh