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From "Keith Turner (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (ACCUMULO-513) Need to deal with half-dead tservers
Date Thu, 21 Mar 2013 16:01:16 GMT

     [ https://issues.apache.org/jira/browse/ACCUMULO-513?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Keith Turner updated ACCUMULO-513:
----------------------------------

    Affects Version/s: 1.4.0
    
> Need to deal with half-dead tservers
> ------------------------------------
>
>                 Key: ACCUMULO-513
>                 URL: https://issues.apache.org/jira/browse/ACCUMULO-513
>             Project: Accumulo
>          Issue Type: Bug
>    Affects Versions: 1.4.0
>            Reporter: Keith Turner
>            Assignee: Keith Turner
>             Fix For: 1.5.0
>
>
> Every once in a while a tablet server will go zombie.  The tablet server is alive and
talking to the master and zookeeper, but not accepting new connections from clients.  To keep
these types of tablet servers from causing problems a process could try to scan a tablet on
each tablet server periodically.  If it can not scan a tablet within a certain number of tries,
it could delete the tservers lock in zookeeper.  The monitor process could do this.  

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