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From "Nick Dimiduk (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HBASE-10792) RingBufferTruck does not release its payload
Date Wed, 19 Mar 2014 19:01:46 GMT
Nick Dimiduk created HBASE-10792:

             Summary: 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

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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