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From "Jackson Chung (Created) (JIRA)" <j...@apache.org>
Subject [jira] [Created] (CASSANDRA-3758) parallel compaction hang (on large rows?)
Date Fri, 20 Jan 2012 00:04:39 GMT
parallel compaction hang (on large rows?)
-----------------------------------------

                 Key: CASSANDRA-3758
                 URL: https://issues.apache.org/jira/browse/CASSANDRA-3758
             Project: Cassandra
          Issue Type: Bug
            Reporter: Jackson Chung


it is observed that:

nodetool -h 127.0.0.1 -p 8080 compactionstats
pending tasks: 1
compaction type keyspace column family bytes compacted bytes total progress
Compaction SyncCoreComputedContactNetworks 119739938 0 n/a

and that is not moving (ie the bytes compacted never increase, the bytes total stay 0).

this is probably going to be difficult to reproduce, as the problem is observed when compacting
15 large sstables (total ~300G).

attaching the thread dumps (along with logs), when such happen.


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