[GitHub] [helix] jiajunwang commented on issue #1888: Ephemeral Instance Support

[GitBox <gi...@apache.org>]

jiajunwang commented on issue #1888:
URL: https://github.com/apache/helix/issues/1888#issuecomment-938284694


   @subprotocol Thanks for the idea. If my memory is accurate, I discussed a similar design with my team before. There are some concerns regarding race condition that makes the implementation more complicated than we expected. So we end up implement HelixAdmin.purgeOfflineInstances for the immediate requests which cleans up offline&expired instances. Unfortunately, it is not an automatic mechanism so it won't fit your needs 100%. Moreover, "Please note that the purge function should only be called when there is no new instance joining happening in the cluster."


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