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Posted to dev@hbase.apache.org by "stack (JIRA)" <ji...@apache.org> on 2018/09/06 00:57:00 UTC

[jira] [Created] (HBASE-21156) [hbck2] Queue an assign of hbase:meta

stack created HBASE-21156:
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             Summary: [hbck2] Queue an assign of hbase:meta
                 Key: HBASE-21156
                 URL: https://issues.apache.org/jira/browse/HBASE-21156
             Project: HBase
          Issue Type: Sub-task
          Components: hbck2
    Affects Versions: 2.1.0
            Reporter: stack
            Assignee: stack
             Fix For: 2.1.1


We need this to effect repair when damage.

If procedure WALs AND a server WAL dir are lost or cleaned or we crashed during partial split (unlikely scenarios but nonetheless possible), a Master can be stuck unable to become active because there is no assign procedure for hbase:meta in the system.

The reasonable argument over in HBASE-21035 has it that attempts at auto-repair under these extremes could cause other issues so at least until we learn more, we for now punt to the operator for fix-up.

To reproduce the catastrophe, see notes in HBASE-21035 (and [~allan163]'s test).



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