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Posted to issues@hbase.apache.org by "stack (JIRA)" <ji...@apache.org> on 2014/03/19 20:57:43 UTC
[jira] [Commented] (HBASE-10792) RingBufferTruck does not release
its payload
[ https://issues.apache.org/jira/browse/HBASE-10792?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13940910#comment-13940910 ]
stack commented on HBASE-10792:
-------------------------------
+1
Its great. Thanks for keeping on w/ the strained metaphor!
> 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
> Attachments: 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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