[GitHub] [hbase-operator-tools] wchevreuil commented on pull request #86: HBASE-25874 [hbase-operator-tools]Add tool for identifying 'unknown s…

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wchevreuil commented on pull request #86:
URL: https://github.com/apache/hbase-operator-tools/pull/86#issuecomment-837185929


   > I think my main worry is about relying on log file parsing for this. That's not to say this is flawed -- it just is what it is.
   
   Yeah, it's fragile indeed, but we are targeting this mainly for the unfortunate souls running hbase versions lower than 2.2.7, 2.3.5 and 2.4.7, as mentioned on the readme, so there shouldn't be any changes on logging format for these already released versions. For any version from the above mentioned onwards, there's already hbck2 recoverUnknown method.
   
   > Is there a reason you went for this approach rather than trying to read meta and interrogate the Master as to who the active RegionServers are?
   
   Although meta is already online, master has not completed initialisation (because of namespace table region stuck on a unknown server), so it pushes back any client requests.
   


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