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From "stack (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HBASE-3419) If re-transition to OPENING during log replay fails, server aborts. Instead, should just cancel region open.
Date Thu, 06 Jan 2011 22:56:46 GMT

    [ https://issues.apache.org/jira/browse/HBASE-3419?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12978553#action_12978553
] 

stack commented on HBASE-3419:
------------------------------

+1 on patch.

Jon says he's running it too.

> If re-transition to OPENING during log replay fails, server aborts.  Instead, should
just cancel region open.
> -------------------------------------------------------------------------------------------------------------
>
>                 Key: HBASE-3419
>                 URL: https://issues.apache.org/jira/browse/HBASE-3419
>             Project: HBase
>          Issue Type: Bug
>          Components: regionserver, zookeeper
>    Affects Versions: 0.90.0, 0.92.0
>            Reporter: Jonathan Gray
>            Assignee: Jonathan Gray
>            Priority: Critical
>             Fix For: 0.90.1, 0.92.0
>
>         Attachments: HBASE-3419-v1.patch, HBASE-3419-v2.patch
>
>
> The {{Progressable}} used on region open to tickle the ZK OPENING node to prevent the
master from timing out a region open operation will currently abort the RegionServer if this
fails for some reason.  However it could be "normal" for an RS to have a region open operation
aborted by the master, so should just handle as it does other places by reverting the open.
> We had a cluster trip over some other issue (for some reason, the tickle was not happening
in < 30 seconds, so master was timing out every time).  Because of the abort on BadVersion,
this eventually led to every single RS aborting itself eventually taking down the cluster.

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