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From "Alex Parvulescu (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (OAK-3133) Make compaction map more efficient for offline compaction
Date Wed, 09 Sep 2015 10:04:46 GMT

     [ https://issues.apache.org/jira/browse/OAK-3133?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Alex Parvulescu updated OAK-3133:
---------------------------------
    Attachment: OAK-3133.patch

proposed patch for filtering out node states during offline compaction.

when backporting to 1.0 this also needs Francesco's patch to read the _compress-interval_
out of system properties.

fyi [~mduerig], [~frm]

> 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: Francesco Mari
>              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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