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https://issues.apache.org/jira/browse/OAK-2746?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Chetan Mehrotra updated OAK-2746:
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Fix Version/s: (was: 1.3.0)
> Ignore lesser used old cache entries while invalidating cache entries in
> background read
> ----------------------------------------------------------------------------------------
>
> Key: OAK-2746
> URL: https://issues.apache.org/jira/browse/OAK-2746
> Project: Jackrabbit Oak
> Issue Type: Improvement
> Components: cache, mongomk
> Reporter: Chetan Mehrotra
> Assignee: Chetan Mehrotra
> Labels: performance
>
> Currently the Cache invalidation logic used in MongoDocumentStore check for
> cache consistency for all the entries present in the cache. With use of
> persistent cache its possible that pressure on backend cache would be reduced
> and some of the cache entries are not being accessed for long time.
> Cache invalidation logic should take into account such access statistics and
> not perform consistency check for cached instance which are not accessed for
> some long time (10 mins?). Such cache entries should be directly discarded.
> PS: Looking at [1] it appears that Guava cache does not enforces a global LRU
> eviction policy. The policy is maintained per segment table
> [1] http://stackoverflow.com/questions/10236057/guava-cache-eviction-policy
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