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From "Andrew Purtell (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HBASE-1315) when HRS znode expires while HRS is still running, HRS enters infinite loop
Date Sun, 10 May 2009 18:44:45 GMT

     [ https://issues.apache.org/jira/browse/HBASE-1315?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Andrew Purtell updated HBASE-1315:
----------------------------------

    Priority: Blocker  (was: Major)

Raise priority to blocker. This prevents any recovery after a ZK session expiry problem.

> when HRS znode expires while HRS is still running, HRS enters infinite loop
> ---------------------------------------------------------------------------
>
>                 Key: HBASE-1315
>                 URL: https://issues.apache.org/jira/browse/HBASE-1315
>             Project: Hadoop HBase
>          Issue Type: Bug
>    Affects Versions: 0.20.0
>            Reporter: Andrew Purtell
>            Priority: Blocker
>             Fix For: 0.20.0
>
>
> See HBASE-1314. In addition, the HRS will indefinitely try to check in even though it
is getting back LeaseStillHeld exceptions. Both the master and HRS logs are, after a few hours,
filled with thousands of these:
> From the HRS log
> 2009-04-07 10:17:46,136 ERROR org.apache.hadoop.hbase.regionserver.HRegionServer: Exceeded
max retries: 10
> org.apache.hadoop.hbase.Leases$LeaseStillHeldException
>         at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
>         at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
>         at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
>         at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
>         at org.apache.hadoop.hbase.RemoteExceptionHandler.decodeRemoteException(RemoteExceptionHandler.java:94)
>         at org.apache.hadoop.hbase.RemoteExceptionHandler.checkThrowable(RemoteExceptionHandler.java:48)
>         at org.apache.hadoop.hbase.RemoteExceptionHandler.checkIOException(RemoteExceptionHandler.java:66)
>         at org.apache.hadoop.hbase.regionserver.HRegionServer.run(HRegionServer.java:493)
>         at java.lang.Thread.run(Thread.java:619)
> They come in to the log about 4 times per second. 

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