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From "stack (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HBASE-1683) OOME on master splitting logs; stuck, won't go down
Date Wed, 22 Jul 2009 17:07:14 GMT

    [ https://issues.apache.org/jira/browse/HBASE-1683?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12734192#action_12734192
] 

stack commented on HBASE-1683:
------------------------------

So, this exception will actual shut down the whole cluster:

{code}
2009-07-22 10:57:19,146 FATAL org.apache.hadoop.hbase.master.HMaster: Unhandled exception.
Starting shutdown.
java.lang.OutOfMemoryError: GC overhead limit exceeded
        at org.apache.hadoop.hbase.io.DataOutputBuffer$Buffer.write(DataOutputBuffer.java:66)
        at org.apache.hadoop.hbase.io.DataOutputBuffer.write(DataOutputBuffer.java:116)
        at org.apache.hadoop.hbase.io.SequenceFile$Reader.next(SequenceFile.java:1944)
        at org.apache.hadoop.hbase.io.SequenceFile$Reader.next(SequenceFile.java:1844)
        at org.apache.hadoop.hbase.io.SequenceFile$Reader.next(SequenceFile.java:1890)
        at org.apache.hadoop.hbase.regionserver.HLog.splitLog(HLog.java:810)
        at org.apache.hadoop.hbase.regionserver.HLog.splitLog(HLog.java:745)
        at org.apache.hadoop.hbase.master.ProcessServerShutdown.process(ProcessServerShutdown.java:266)
        at org.apache.hadoop.hbase.master.HMaster.processToDoQueue(HMaster.java:444)
        at org.apache.hadoop.hbase.master.HMaster.run(HMaster.java:379)
{code}

> OOME on master splitting logs; stuck, won't go down
> ---------------------------------------------------
>
>                 Key: HBASE-1683
>                 URL: https://issues.apache.org/jira/browse/HBASE-1683
>             Project: Hadoop HBase
>          Issue Type: Bug
>            Reporter: stack
>             Fix For: 0.20.0
>
>
> This is holding it up.
> {code}
> "HMaster" prio=10 tid=0x000000004048c000 nid=0x6ab0 in Object.wait() [0x0000000040d6c000..0x0000000040d6cd00]
>    java.lang.Thread.State: WAITING (on object monitor)
>         at java.lang.Object.wait(Native Method)
>         at java.lang.Thread.join(Unknown Source)
>         - locked <0x00007fc6d28be720> (a org.apache.hadoop.hbase.master.RootScanner)
>         at java.lang.Thread.join(Unknown Source)
>         at org.apache.hadoop.hbase.master.RegionManager.stop(RegionManager.java:611)
>         at org.apache.hadoop.hbase.master.HMaster.run(HMaster.java:405)
> {code}
> Was splitting 11 logs.

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