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https://issues.apache.org/jira/browse/CASSANDRA-4673?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13612008#comment-13612008
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Jonathan Ellis commented on CASSANDRA-4673:
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The multi-threaded compaction deadlock was fixed in CASSANDRA-4492.
> Compaction of HintsColumnFamily stucks
> --------------------------------------
>
> Key: CASSANDRA-4673
> URL: https://issues.apache.org/jira/browse/CASSANDRA-4673
> Project: Cassandra
> Issue Type: Bug
> Affects Versions: 1.1.1
> Environment: We've got a 24 nodes cluster with 3 virtual data
> centers. We've got 7 nodes with SSD drives. We are operating under very heavy
> read/write load. We typically seeing CPU usage >90% on our machines.
> We are using 1.1.2 - why this version is not listed in the 'Affected Version'
> drop down?
> Reporter: Bartłomiej Romański
>
> On some nodes the compaction of HintsColumnFamily stucked. Here is a typical
> output of 'nodetool compactionstats':
> pending tasks: 1
> compaction type keyspace column family bytes compacted
> bytes total progress
> Compaction systemHintsColumnFamily 346205828
> 346909662 99.80%
> Active compaction remaining time : 0h00m00s
> Rebooting a node does not help. The compaction starts immediately after
> booting and stucks and the same point.
> If this can be related we are also expiring a problem described in
> CASSANDRA-4639.
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