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Posted to issues@hbase.apache.org by GitBox <gi...@apache.org> on 2020/07/21 21:14:54 UTC

[GitHub] [hbase] taklwu commented on pull request #2113: HBASE-24286: HMaster won't become healthy after after cloning or crea…

taklwu commented on pull request #2113:
URL: https://github.com/apache/hbase/pull/2113#issuecomment-662110119


   I need to double check the unit test failing, will update here only once I have the correct patch (it's related to `loadMeta` that hangs the region starts).
   
   > Any thoughts on how to try to minimize the chance of us incorrectly marking a RegionServer as dead? 
   
   
   Correct me if I'm wrong, if an unknown server join on a hbase cluster, since it's not online or dead, assignment manager should not take those `online` regions as consideration and serving request. or is this not true? 
   
   Basically, `DEAD` and `UNKNOWN_SERVER` are different in branch-2 and master branch, which in ServerManager we only track `onlineServers` and `deadServer` and I didn't find any transition that a `UNKNOWN_SERVER` could be moved to `DEAD` or `ONLINE`. 
   
   


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