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From "Benoit Sigoure (Updated) (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-5249) NPE getting a rowlock, 'Error obtaining row lock (fsOk: true)'
Date Tue, 24 Jan 2012 18:42:42 GMT

     [ https://issues.apache.org/jira/browse/HBASE-5249?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Benoit Sigoure updated HBASE-5249:
----------------------------------

    Priority: Blocker  (was: Critical)
    
> NPE getting a rowlock, 'Error obtaining row lock (fsOk: true)'
> --------------------------------------------------------------
>
>                 Key: HBASE-5249
>                 URL: https://issues.apache.org/jira/browse/HBASE-5249
>             Project: HBase
>          Issue Type: Bug
>            Reporter: stack
>            Assignee: stack
>            Priority: Blocker
>             Fix For: 0.92.1
>
>
> See http://search-hadoop.com/m/ZTJxL1S7Hq61/Error+obtaining+row+lock+%2528fsOk%253A+true%2529&subj=Re+NPE+while+obtaining+row+lock
> Benoit just ran into this too testing tsdb against 0.92:
> {code}
> 2012-01-20 17:09:54,074 ERROR
> org.apache.hadoop.hbase.regionserver.HRegionServer: Error obtaining
> row lock (fsOk: true)
> java.lang.NullPointerException
>        at java.util.concurrent.ConcurrentHashMap.put(ConcurrentHashMap.java:881)
>        at org.apache.hadoop.hbase.regionserver.HRegionServer.addRowLock(HRegionServer.java:2313)
>        at org.apache.hadoop.hbase.regionserver.HRegionServer.lockRow(HRegionServer.java:2299)
>        at sun.reflect.GeneratedMethodAccessor15.invoke(Unknown Source)
>        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
>        at java.lang.reflect.Method.invoke(Method.java:597)
>        at org.apache.hadoop.hbase.ipc.WritableRpcEngine$Server.call(WritableRpcEngine.java:364)
>        at org.apache.hadoop.hbase.ipc.HBaseServer$Handler.run(HBaseServer.java:1327)
> It happened only once out of thousands of RPCs that grabbed and
> released a row lock.
> {code}

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