Michael Dürig created OAK-4015:
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Summary: Expedite commits from the compactor
Key: OAK-4015
URL: https://issues.apache.org/jira/browse/OAK-4015
Project: Jackrabbit Oak
Issue Type: Improvement
Components: segmentmk
Reporter: Michael Dürig
Fix For: 1.6
Concurrent commits during compaction cause those to be re-compacted. Currently
it seems that the compaction thread can end up waiting for some time to acquire
the commit lock [1], which in turn causes more commits to pile up to be
re-compacted. I think this could be improved by tweaking the lock such that the
compactor could jump ahead of the queue. I.e. use a lock which can be acquired
in expedited mode.
[1] SegmentNodeStore#commitSemaphore
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