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From "Alex Parvulescu (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (OAK-3133) Make compaction map more efficient for offline compaction
Date Wed, 09 Sep 2015 14:02:47 GMT

    [ https://issues.apache.org/jira/browse/OAK-3133?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14736894#comment-14736894
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Alex Parvulescu commented on OAK-3133:
--------------------------------------

applied the offline compaction optimization to trunk with http://svn.apache.org/r1702014

> Make compaction map more efficient for offline compaction
> ---------------------------------------------------------
>
>                 Key: OAK-3133
>                 URL: https://issues.apache.org/jira/browse/OAK-3133
>             Project: Jackrabbit Oak
>          Issue Type: Sub-task
>          Components: run
>            Reporter: Michael Dürig
>            Assignee: Alex Parvulescu
>              Labels: compaction, gc
>             Fix For: 1.0.20, 1.3.6, 1.2.5
>
>         Attachments: OAK-3133-01.patch, OAK-3133-partial.patch, OAK-3133.patch
>
>
> The compaction map might be expensive. See OAK-2862 for the analysis. We should find
ways to lower the impact of this on offline compaction. One option would be to make the compress
cycle configurable, which would require more heap. Another option would be to leverage the
persisted compaction map here also.



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