[jira] [Updated] (HBASE-4124) ZK restarted while assigning a region, new active HM re-assign it but the RS warned 'already online on this server'.

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

     [ https://issues.apache.org/jira/browse/HBASE-4124?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

gaojinchao updated HBASE-4124:
------------------------------

    Attachment: HBASE-4124_Branch90V1_trial.patch

I try to make a patch and fix this issue.
But I only run the UT test. Please review it firstly and give me some suggestion. I will test it tomorrow. Thanks.

> ZK restarted while assigning a region, new active HM re-assign it but the RS warned 'already online on this server'.
> --------------------------------------------------------------------------------------------------------------------
>
>                 Key: HBASE-4124
>                 URL: https://issues.apache.org/jira/browse/HBASE-4124
>             Project: HBase
>          Issue Type: Bug
>          Components: master
>            Reporter: fulin wang
>         Attachments: HBASE-4124_Branch90V1_trial.patch, log.txt
>
>   Original Estimate: 0.4h
>  Remaining Estimate: 0.4h
>
> ZK restarted while assigning a region, new active HM re-assign it but the RS warned 'already online on this server'.
> Issue:
> The RS failed besause of 'already online on this server' and return; The HM can not receive the message and report 'Regions in transition timed out'.

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