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Posted to issues@zookeeper.apache.org by "Chris (Jira)" <ji...@apache.org> on 2022/10/27 12:32:00 UTC

[jira] [Created] (ZOOKEEPER-4629) Observers fail to restart when using quorum sasl

Chris created ZOOKEEPER-4629:
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             Summary: Observers fail to restart when using quorum sasl
                 Key: ZOOKEEPER-4629
                 URL: https://issues.apache.org/jira/browse/ZOOKEEPER-4629
             Project: ZooKeeper
          Issue Type: Bug
    Affects Versions: 3.7.0
            Reporter: Chris


Our observers have started failing to restart after introducing tls & sasl for quorum and client connections. We have narrowed the cause down to quorum sasl and disabling quorum sasl fixed the issue.

 

I can recreate the incident as follows: 

 
 # 6 server cluster of participants (this is our standard setup)
 # Reconfig server id 1 to observer
 ## id1 switches to observer mode and stays functional
 # restart id1
 ## id1 starts and never manages to join the cluster. Note that it does not reach OBSERVING state.
 ## Subsequent restarts also fail
 # stop id=1
 # (repair) dynamic reconfig id 1 to participant
 ## (You can try to start id 1 immediately, but it will not retrieve the new config and just get in the startup loop as before.) 
 ## Give id 1 a zoo.cfg.dynamic.initial
 ## Start id 1 and it will connect, retrieve current config and function normally

 

 



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