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https://issues.apache.org/jira/browse/OAK-5004?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15608157#comment-15608157
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Michael Dürig commented on OAK-5004:
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The offline compactor is still based on the {{RecordCache}}. We switched online
compaction to the {{PriorityCache}}, which increased the hit rate quite a bit.
I'm working on a patch to do the same for offline compaction. Initial results
look promising.
> Offline compaction explodes checkpoints
> ----------------------------------------
>
> Key: OAK-5004
> URL: https://issues.apache.org/jira/browse/OAK-5004
> Project: Jackrabbit Oak
> Issue Type: Improvement
> Components: segment-tar
> Reporter: Michael Dürig
> Assignee: Michael Dürig
> Labels: compaction, gc, tooling
> Fix For: Segment Tar 0.0.20
>
>
> Running offline compaction on a repository with checkpoints will explode
> those into full copies. Observed e.g. with OAK-5001.
> I think we should consider improving this by compacting checkpoints on top of
> each other in the proper order ({{oak-upgrade}} does this successfully).
> [~alex.parvulescu], WDYT? What was our take on this in the previous Oak
> versions?
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