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From "Chetan Mehrotra (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (OAK-1568) Provide flag to not cache documents from queries
Date Sat, 29 Mar 2014 19:32:14 GMT

     [ https://issues.apache.org/jira/browse/OAK-1568?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Chetan Mehrotra resolved OAK-1568.
----------------------------------

    Resolution: Won't Fix

This was required for Blob GC usecase. For now at least for Blob GC this is met via Mongo
specific impl of ReferenceBlobCollectory (OAK-1643). So this is not required.

If later need is felt to support this for some other case then it can be reopened

> Provide flag to not cache documents from queries
> ------------------------------------------------
>
>                 Key: OAK-1568
>                 URL: https://issues.apache.org/jira/browse/OAK-1568
>             Project: Jackrabbit Oak
>          Issue Type: Improvement
>          Components: mongomk
>    Affects Versions: 0.18
>            Reporter: Chetan Mehrotra
>            Assignee: Chetan Mehrotra
>            Priority: Minor
>             Fix For: 0.20
>
>
> For some of the cases like Blob/Version Garbage Collection code logic traverses over
large number of NodeDocument obtained from DocuementStore.query methods. Currently these method
cache and NodeDocument obtained by default.
> For usage pattern like above this would overflow the cache and it might be better to
avoid caching in such cases.
> See [1] for details
> [1] http://markmail.org/thread/ilcqtvaziie3ycb5



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