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https://issues.apache.org/jira/browse/OAK-2849?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14998840#comment-14998840
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Alex Parvulescu commented on OAK-2849:
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a tiny observation on the _SegmentCompactionIT_, I noticed that the references
it registers are quite heavy: hard links to old node states for 10 mins, while
compaction runs each minute. this might make sense for longer runs of the test,
but at least for me locally I had to disable this part of the test as it makes
the turnaround too slow for small tweaks.
> Improve revision gc on SegmentMK
> --------------------------------
>
> Key: OAK-2849
> URL: https://issues.apache.org/jira/browse/OAK-2849
> Project: Jackrabbit Oak
> Issue Type: Epic
> Components: segmentmk
> Reporter: Michael Dürig
> Assignee: Michael Dürig
> Labels: compaction, gc
> Fix For: 1.4
>
> 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.
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