vimil-saju opened a new issue, #17786:
URL: https://github.com/apache/druid/issues/17786

   Please provide a detailed title (e.g. "Broker crashes when using TopN query 
with Bound filter" instead of just "Broker crashes").
   
   ### Affected Version
   29.0.0
   
   The Druid version where the problem was encountered.
   
   ### Description
   
   We have druid 29.0.0 deployed on a kubernetes cluster. We also have 
zookeeper installed in the cluster with istio-proxy enabled. When we disabled 
istio-proxy on the zookeeper pods and restarted zookeeper we noticed that druid 
coordinators lost leadership and the LeaderLatch did not invoke reset() to 
create the ephemeral node when the Zookeeper Connection State transitioned from 
`LOST` to `RECONNECTING`. This caused requests to coordinators to result in 503 
errors, because there was no leader. Upon investigating further we found that 
this issue exists in curator library version 5.5 that druid uses and is fixed 
in 5.8 version - https://issues.apache.org/jira/browse/CURATOR-724    
   
   I think upgrading curator version to 5.8 will fix this issue.


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