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From "Jean-Daniel Cryans (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-5844) Delete the region servers znode after a regions server crash
Date Fri, 20 Apr 2012 17:58:40 GMT

    [ https://issues.apache.org/jira/browse/HBASE-5844?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13258422#comment-13258422
] 

Jean-Daniel Cryans commented on HBASE-5844:
-------------------------------------------

It is deleted automatically, it's an ephemeral znode so it takes zk.session.timeout time to
see it disappear.
                
> Delete the region servers znode after a regions server crash
> ------------------------------------------------------------
>
>                 Key: HBASE-5844
>                 URL: https://issues.apache.org/jira/browse/HBASE-5844
>             Project: HBase
>          Issue Type: Improvement
>          Components: regionserver, scripts
>    Affects Versions: 0.96.0
>            Reporter: nkeywal
>            Assignee: nkeywal
>         Attachments: 5844.v1.patch
>
>
> today, if the regions server crashes, its znode is not deleted in ZooKeeper. So the recovery
process will stop only after a timeout, usually 30s.
> By deleting the znode in start script, we remove this delay and the recovery starts immediately.

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