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https://issues.apache.org/jira/browse/HBASE-18694?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16484045#comment-16484045
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Pankaj Kumar commented on HBASE-18694:
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We also met this problem in our production environment.
[~Bo Cui], are you working in this Jira? If not, I would like to attach a patch
here.
> The master switch of ha mode causes region not online
> -----------------------------------------------------
>
> Key: HBASE-18694
> URL: https://issues.apache.org/jira/browse/HBASE-18694
> Project: HBase
> Issue Type: Bug
> Components: master, Zookeeper
> Affects Versions: 0.98.10, 1.3.0
> Reporter: Bo Cui
> Priority: Major
> Attachments: Sequence Diagram.jpg, hbase-18694-0.98.10.patch
>
>
> HA mode has two master, firstMaster and secondMaster; at the beginning,
> SecondMaster is active, firstMaster is standby.
> After secondMaster sends the openregion request to rs , the rs begins to
> launch regions, and the secondMaster just happened to be arbor; firstMaster
> becomes active and receives the zk message (node changed opend), but the
> region state in firstMaster memory is not opening, firstMaster sends the send
> closeRegion to rs, the region will never be on-line.
> Other versions should also exist the problem.
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