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From "Zhong Deyin (JIRA)" <j...@apache.org>
Subject [jira] [Reopened] (HBASE-7445) Hbase cluster is unavailable while the regionserver that Meta table deployed crashed
Date Fri, 28 Dec 2012 03:24:12 GMT

     [ https://issues.apache.org/jira/browse/HBASE-7445?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Zhong Deyin reopened HBASE-7445:
--------------------------------

    
> Hbase cluster is unavailable while the regionserver that Meta table deployed crashed
> ------------------------------------------------------------------------------------
>
>                 Key: HBASE-7445
>                 URL: https://issues.apache.org/jira/browse/HBASE-7445
>             Project: HBase
>          Issue Type: Bug
>          Components: Region Assignment, regionserver
>    Affects Versions: 0.94.1
>         Environment: Hadoop 0.20.2-cdh3u3
> Hbase 0.94.1
>            Reporter: Zhong Deyin
>              Labels: patch
>   Original Estimate: 336h
>  Remaining Estimate: 336h
>
> while the regionserver that META table deployed crashed, the .META. table can't migrate
to other available regionservers. Then the region spliting, can't find META table, cause the
whole cluster is unavailable.
> Code path: org.apache.hadoop.hbase.master.handler.ServerShutdownHandler
> {code}
>       // Carrying meta
>       if (isCarryingMeta()) {
>         LOG.info("Server " + serverName + " was carrying META. Trying to assign.");
>         this.services.getAssignmentManager().
>           regionOffline(HRegionInfo.FIRST_META_REGIONINFO);
>         this.services.getAssignmentManager().assignMeta();
>       }
> {code}

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