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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] Commented: (CASSANDRA-667) Avoid causing IO contention when cleaning up compacted SSTables
Date Sat, 23 Jan 2010 12:37:18 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-667?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12804077#action_12804077
] 

Hudson commented on CASSANDRA-667:
----------------------------------

Integrated in Cassandra #332 (See [http://hudson.zones.apache.org/hudson/job/Cassandra/332/])
    move sstable deletions into a Timer to reduce concurrency
patch by jbellis; reviewed by gdusbabek for 


> Avoid causing IO contention when cleaning up compacted SSTables
> ---------------------------------------------------------------
>
>                 Key: CASSANDRA-667
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-667
>             Project: Cassandra
>          Issue Type: Improvement
>          Components: Core
>            Reporter: Jonathan Ellis
>            Assignee: Jonathan Ellis
>            Priority: Minor
>             Fix For: 0.6
>
>         Attachments: 667-v2.txt, 667.txt
>
>
> Post-CASSANDRA-408 compacted sstables are deleted in parallel, one thread per sstable;
this can cause IO contention with sstable flush and compaction.  Serialize this instead.

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