[jira] [Updated] (CASSANDRA-3758) parallel compaction hang (on large rows?)

["Jackson Chung (Updated) (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/CASSANDRA-3758?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jackson Chung updated CASSANDRA-3758:
-------------------------------------

    Attachment: cassandra.log.zip

ps: i had a problem unzip it originally, but getaround by gunzip -c [file] > /path/to/file .. just in case
                
> 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
>         Attachments: cassandra.log.zip
>
>
> 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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