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From "Andrew Purtell (JIRA)" <j...@apache.org>
Subject [jira] Resolved: (HBASE-1196) OOME in HRS IPC server causes infinite client stall
Date Thu, 12 Feb 2009 08:59:59 GMT

     [ https://issues.apache.org/jira/browse/HBASE-1196?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Andrew Purtell resolved HBASE-1196.
-----------------------------------

       Resolution: Fixed
    Fix Version/s: 0.20.0
                   0.19.1

Resolved by subtask.

> OOME in HRS IPC server causes infinite client stall
> ---------------------------------------------------
>
>                 Key: HBASE-1196
>                 URL: https://issues.apache.org/jira/browse/HBASE-1196
>             Project: Hadoop HBase
>          Issue Type: Bug
>            Reporter: Andrew Purtell
>            Assignee: Andrew Purtell
>            Priority: Critical
>             Fix For: 0.19.1, 0.20.0
>
>
> OOME in IPC server handler causes the IPC handler to abort, but the client never learns
about this, so it waits and waits and waits... I have seen Heritrix writer threads that have
been waiting for 7+ hours. And, the OOME does not take down the HRS, so it stays up in some
degraded state.  E.g.:
> java.lang.OutOfMemoryError: Java heap space
> Dumping heap to java_pid13008.hprof
> Exception in thread "IPC Server handler 5 on 60020" java.lang.OutOfMemoryError: Java
heap space
> at java.util.Arrays.copyOf(Arrays.java:2786)
> at java.io.ByteArrayOutputStream.write(ByteArrayOutputStream.java:94)
> at java.io.DataOutputStream.write(DataOutputStream.java:90)
> at org.apache.hadoop.hbase.util.Bytes.writeByteArray(Bytes.java:82)
> at org.apache.hadoop.hbase.io.Cell.write(Cell.java:162)
> at org.apache.hadoop.hbase.io.HbaseMapWritable.write(HbaseMapWritable.java:200)
> at org.apache.hadoop.hbase.io.RowResult.write(RowResult.java:249)
> at org.apache.hadoop.hbase.io.HbaseObjectWritable.writeObject(HbaseObjectWritable.java:300)
> at org.apache.hadoop.hbase.io.HbaseObjectWritable.write(HbaseObjectWritable.java:262)
> at org.apache.hadoop.hbase.ipc.HBaseServer$Handler.run(HBaseServer.java:917)
> Exception in thread "IPC Server handler 7 on 60020" java.lang.OutOfMemoryError: Java
heap space
> Exception in thread "IPC Server handler 4 on 60020" java.lang.OutOfMemoryError: Java
heap space
> Exception in thread "IPC Server handler 2 on 60020" java.lang.OutOfMemoryError: Java
heap space
> Exception in thread "IPC Server handler 3 on 60020" java.lang.OutOfMemoryError: Java
heap space
> Exception in thread "IPC Server handler 0 on 60020" java.lang.OutOfMemoryError: Java
heap space
> Exception in thread "IPC Server handler 6 on 60020" java.lang.OutOfMemoryError: Java
heap space
> Exception in thread "IPC Server handler 9 on 60020" java.lang.OutOfMemoryError: Java
heap space
> Exception in thread "IPC Server handler 1 on 60020" java.lang.OutOfMemoryError: Java
heap space
> Exception in thread "IPC Server handler 8 on 60020" java.lang.OutOfMemoryError: Java
heap space

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