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From "Vikas Saurabh (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (OAK-3066) Persistent cache for previous documents
Date Thu, 28 Jan 2016 22:51:39 GMT

    [ https://issues.apache.org/jira/browse/OAK-3066?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15122480#comment-15122480
] 

Vikas Saurabh commented on OAK-3066:
------------------------------------

bq. is it possible to invalidate or update a cache entry of a persistent cache?
[~mreutegg], I checked that we can update/invalidate pers cache without issues. I think the
reason we maintain the immutability property in our code is to be confident that we won't
require any invalidation logic for generally huge sized pers. cache.

> Persistent cache for previous documents
> ---------------------------------------
>
>                 Key: OAK-3066
>                 URL: https://issues.apache.org/jira/browse/OAK-3066
>             Project: Jackrabbit Oak
>          Issue Type: Improvement
>          Components: core, mongomk
>            Reporter: Marcel Reutegger
>            Assignee: Vikas Saurabh
>            Priority: Blocker
>              Labels: performance
>             Fix For: 1.4, 1.3.15
>
>         Attachments: OAK-3066.take1.patch, OAK-3066.wip.patch
>
>
> Previous (aka split) documents contain old revisions and are immutable documents. Those
documents should go into the persistent cache to reduce calls to the underlying DocumentStore.



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