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https://issues.apache.org/jira/browse/JCR-3335?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13293428#comment-13293428
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Alex Parvulescu commented on JCR-3335:
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> you replace the 'updateCache' method with 'getEntries'. 
I'm not actually replacing the 2 calls, I'm only reducing the mirrored code, 
and merging the 2 similar 'getEntries' methods together.
And like you've noticed this has the added benefit that it loads the node 
outside the read lock.
                
> Reduce synchronized block scope when loading a node by id
> ---------------------------------------------------------
>
>                 Key: JCR-3335
>                 URL: https://issues.apache.org/jira/browse/JCR-3335
>             Project: Jackrabbit Content Repository
>          Issue Type: Sub-task
>            Reporter: Alex Parvulescu
>         Attachments: CachingEntryCollector.java.patch
>
>
> This is a small(ish) change that takes the 'getNodeById' cll outside of the 
> synchronized block that wraps the cache access.
> I see the load call as a heavy one, and the proposed change offers better 
> concurrency behavior.
> In the tests that I ran, mostly related to queries I got a 20% improvement on 
> average query response time.

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