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Posted to oak-issues@jackrabbit.apache.org by "Michael Dürig (JIRA)" <ji...@apache.org> on 2015/09/01 11:15:46 UTC
[jira] [Commented] (OAK-2849) Improve revision gc on SegmentMK
[ https://issues.apache.org/jira/browse/OAK-2849?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14725029#comment-14725029 ]
Michael Dürig commented on OAK-2849:
------------------------------------
At http://svn.apache.org/r1700430 I added a conflict handler so we don't spam the repository with {{:conflict}} nodes.
> Improve revision gc on SegmentMK
> --------------------------------
>
> Key: OAK-2849
> URL: https://issues.apache.org/jira/browse/OAK-2849
> Project: Jackrabbit Oak
> Issue Type: Task
> Components: segmentmk
> Reporter: Michael Dürig
> Assignee: Michael Dürig
> Labels: compaction, gc
> Fix For: 1.3.6
>
> Attachments: SegmentCompactionIT-conflicts.png
>
>
> This is a container issue for the ongoing effort to improve revision gc of the SegmentMK.
> I'm exploring
> * ways to make the reference graph as exact as possible and necessary: it should not contain segments that are not referenceable any more and but must contain all segments that are referenceable.
> * ways to segregate the reference graph reducing dependencies between certain set of segments as much as possible.
> * Reducing the number of in memory references and their impact on gc as much as possible.
> Work in progress is in my private [Github fork|https://github.com/mduerig/jackrabbit-oak]. As soon as something is promising enough to make it into Oak, I spawn of an issue an make it a subtask of this task.
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