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Posted to issues@hbase.apache.org by "Zhihong Yu (Commented) (JIRA)" <ji...@apache.org> on 2012/01/23 00:36:39 UTC
[jira] [Commented] (HBASE-5249) NPE getting a rowlock, 'Error
obtaining row lock (fsOk: true)'
[ https://issues.apache.org/jira/browse/HBASE-5249?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13190820#comment-13190820 ]
Zhihong Yu commented on HBASE-5249:
-----------------------------------
This could be related to HBASE-5171.
> 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: Critical
> 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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