[jira] [Created] (HBASE-16423) Add re-compare option to VerifyReplication to avoid occasional inconsistent rows

["Jianwei Cui (JIRA)" <ji...@apache.org>]

Jianwei Cui created HBASE-16423:
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             Summary: Add re-compare option to VerifyReplication to avoid occasional inconsistent rows
                 Key: HBASE-16423
                 URL: https://issues.apache.org/jira/browse/HBASE-16423
             Project: HBase
          Issue Type: Improvement
          Components: Replication
    Affects Versions: 2.0.0
            Reporter: Jianwei Cui
            Priority: Minor


Because replication keeps eventually consistency, VerifyReplication may report inconsistent rows if there are data being written to source or peer clusters during scanning. These occasionally inconsistent rows will have the same data if we do the comparison again after a short period. It is not easy to find the really inconsistent rows if VerifyReplication report a large number of such occasionally inconsistency. To avoid this case, we can add an option to make VerifyReplication read out the inconsistent rows again after sleeping a few seconds and re-compare the rows during scanning. This behavior follows the eventually consistency of hbase's replication. Suggestions and discussions are welcomed.



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