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https://issues.apache.org/jira/browse/HBASE-21465?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Duo Zhang reopened HBASE-21465:
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A bunch UTs are failed. Let me revert the patch first.
> Retry on reportRegionStateTransition can lead to unexpected errors
> ------------------------------------------------------------------
>
> Key: HBASE-21465
> URL: https://issues.apache.org/jira/browse/HBASE-21465
> Project: HBase
> Issue Type: Sub-task
> Components: amv2
> Reporter: Duo Zhang
> Assignee: Duo Zhang
> Priority: Major
> Fix For: 3.0.0, 2.2.0
>
> Attachments: HBASE-21465-UT.patch, HBASE-21465-v1.patch,
> HBASE-21465-v2.patch, HBASE-21465.patch
>
>
> It is possible that the reportRegionStateTransition method is succeeded at
> master side, but before returning the the region server, the rpc connection
> is broken, or the master restarts. So next when the region server try
> again,we will find that the state for the region and the TRSP is not correct,
> and can lead to a RS abort or something even worse.
> We should be able to determine whether a reportRegionStateTransition call is
> just a retry and has already been succeeded, and just ignore it.
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