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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-10792) RingBufferTruck does not release its payload
Date Thu, 20 Mar 2014 03:10:47 GMT

    [ https://issues.apache.org/jira/browse/HBASE-10792?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13941347#comment-13941347
] 

Hudson commented on HBASE-10792:
--------------------------------

FAILURE: Integrated in HBase-TRUNK #5025 (See [https://builds.apache.org/job/HBase-TRUNK/5025/])
HBASE-10792 RingBufferTruck does not release its payload (ndimiduk: rev 1579475)
* /hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/wal/FSHLog.java
* /hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/wal/RingBufferTruck.java


> RingBufferTruck does not release its payload
> --------------------------------------------
>
>                 Key: HBASE-10792
>                 URL: https://issues.apache.org/jira/browse/HBASE-10792
>             Project: HBase
>          Issue Type: Bug
>          Components: Performance, wal
>    Affects Versions: 0.99.0
>            Reporter: Nick Dimiduk
>            Assignee: Nick Dimiduk
>             Fix For: 0.99.0
>
>         Attachments: HBASE-10792.00.patch, HBASE-10792.00.patch
>
>
> Run a write-heavy workload (PerfEval sequentialWrite) out of a trunk sandbox and watch
as HBase eventually dies with an OOM: heap space. Examining the heap dump shows an extremely
large retained size of KeyValue and RingBufferTrunk instances. By my eye, the default value
of {{hbase.regionserver.wal.disruptor.event.count}} is too large for such a small default
heap size, or the RBT instances need to release their payloads after consumers retrieve them.



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