[GitHub] [druid] himanshug edited a comment on issue #10752: [Draft] 0.21.0 Release Notes

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himanshug edited a comment on issue #10752:
URL: https://github.com/apache/druid/issues/10752#issuecomment-760547707


   hey @jihoonson , I am very excited about `Service discovery and leader election based on Kubernetes` but I am in the process of writing a PR that runs #10680 for k8s based deployment to stress test the k8s based leader election mechanism ... In that process I found two improvements, 
   (1) upgrade to newer version of `kubernetes-client` library which has some leader election improvements and makes leader changes happen quicker if a node is gracefully stopped
   (2) a bug which shows up in specific deployments where `druid.host` gets set to something more than 63 characters which is the max length limit on kubernetes label values
   
   I will address all of the above including introducing the new build in a new PR, those updates would make this feature a lot more robust and production ready. Thanks to @clintropolis  for introducing #10680 which really stresses the overlord/coordinator startup, discovery, leader election machinery to help discover above improvements.
   
   that said, I think, 0.21.0 should continue to go on its schedule. For that reason, I think we should remove the mention of this new feature in 0.21.0 release notes and we can document its availability in next release.
   


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