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Posted to oak-issues@jackrabbit.apache.org by "Michael Dürig (JIRA)" <ji...@apache.org> on 2017/05/02 15:25:04 UTC
[jira] [Resolved] (OAK-5956) Improve cache statistics of the
segment cache
[ https://issues.apache.org/jira/browse/OAK-5956?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Michael Dürig resolved OAK-5956.
--------------------------------
Resolution: Fixed
Fix Version/s: (was: 1.7.1)
1.7.0
Fixed at http://svn.apache.org/viewvc?rev=1793528&view=rev
> Improve cache statistics of the segment cache
> ---------------------------------------------
>
> Key: OAK-5956
> URL: https://issues.apache.org/jira/browse/OAK-5956
> Project: Jackrabbit Oak
> Issue Type: Improvement
> Components: segment-tar
> Reporter: Michael Dürig
> Assignee: Michael Dürig
> Labels: monitoring
> Fix For: 1.7.0, 1.8
>
>
> The statistics provided by the segment cache are off due to the fact it serves as 2nd level cache: as it doesn't see all the hits in the 1st level cache ({{SegmentId.getSegment()}}), it reports a hit/miss rate that is to low.
> We should look into how we could expose better statistics wrt. caching of segments. Possible consolidated over 1st and 2nd level caches.
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