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https://issues.apache.org/jira/browse/HBASE-4124?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13088146#comment-13088146
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gaojinchao commented on HBASE-4124:
-----------------------------------
I have finished the test. I discribe the scene:
step 1: startup cluster
step 2: abort the master when finish call "sendRegionOpen(destination, regions)"
step 3: startup cluster again.
above steps will reproduce the issue.
when master is failover. the meta records the dead server,but the region is
processing for a living region server.
> 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,
> HBASE-4124_Branch90V2.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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