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From "Stu Hood (JIRA)" <>
Subject [jira] [Resolved] (CASSANDRA-1876) Allow minor Parallel Compaction
Date Fri, 15 Jul 2011 02:42:59 GMT


Stu Hood resolved CASSANDRA-1876.

    Resolution: Fixed

I think this one has been sufficiently resolved in trunk.

> Allow minor Parallel Compaction
> -------------------------------
>                 Key: CASSANDRA-1876
>                 URL:
>             Project: Cassandra
>          Issue Type: Improvement
>            Reporter: Germán Kondolf
>            Priority: Minor
>         Attachments: 1876-reformatted.txt, compactionPatch-V2.txt, compactionPatch-V3.txt
> Hi,
> According to the dev's list discussion (1) I've patched the CompactionManager to allow
parallel compaction.
> Mainly it splits the sstables to compact in the desired buckets, configured by a new
parameter: compaction_parallelism with the current default of "1".
> Then, it just submits the units of work to a new executor and waits for the finalization.
> The patch was created in the trunk, so I don't know the exact affected version, I assume
that is 0.8.
> I'll try to apply this patch to 0.6.X also for my current production installation, and
then reattach it.
> (1)

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