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https://issues.apache.org/jira/browse/OAK-1138?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13810903#comment-13810903
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Jukka Zitting commented on OAK-1138:
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What specific operations would such a cache help optimize? Is there no other
way to speed them up, or avoid entirely?
Note that with all caches come with the extra overhead and complexity of
maintaining them, so Ideally we'd have as few caches as possible. And the
caches that we do have should be clearly justified.
In most cases where caches have been suggested so far we've been able to
achieve significant order-of-magnitude performance improvements just by
refactoring code to avoid unnecessary content lookups. Would something like
that be possible here as well?
> Implement global per principal permission entry cache
> -----------------------------------------------------
>
> Key: OAK-1138
> URL: https://issues.apache.org/jira/browse/OAK-1138
> Project: Jackrabbit Oak
> Issue Type: Sub-task
> Components: security
> Affects Versions: 0.10
> Reporter: Tobias Bocanegra
> Assignee: Tobias Bocanegra
> Priority: Minor
>
> In order to speedup ACL evaluation, we need some sort of cache that can hold
> the pre-computed access control permission entries.
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