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From "Bo Cui (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-18694) The master switch of ha mode causes region not online
Date Sat, 26 Aug 2017 02:17:00 GMT

     [ https://issues.apache.org/jira/browse/HBASE-18694?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Bo Cui updated HBASE-18694:
---------------------------
    Summary: The master switch of ha mode causes region not online  (was: Ha mode master switch
causes region not online)

> 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
>            Reporter: Bo Cui
>         Attachments: Sequence Diagram.jpg
>
>
> 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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