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Posted to oak-issues@jackrabbit.apache.org by "Chetan Mehrotra (JIRA)" <ji...@apache.org> on 2014/03/31 06:10:15 UTC

[jira] [Resolved] (OAK-1643) Implement BlobReferenceIterator optimized for Mongo

     [ https://issues.apache.org/jira/browse/OAK-1643?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Chetan Mehrotra resolved OAK-1643.
----------------------------------

    Resolution: Fixed

> Implement BlobReferenceIterator optimized for Mongo
> ---------------------------------------------------
>
>                 Key: OAK-1643
>                 URL: https://issues.apache.org/jira/browse/OAK-1643
>             Project: Jackrabbit Oak
>          Issue Type: Improvement
>          Components: mongomk
>            Reporter: Chetan Mehrotra
>            Assignee: Chetan Mehrotra
>             Fix For: 0.20
>
>
> Current BlobReferenceIterator works on DocumentStore API due to which it is not able to make use of Mongo specific optimization and has few issues like
> * It floods the cache with NodeDocument fetched just for binary extraction (OAK-1568)
> * It implements its own pagination where it can rely on Mongo DBCursor (OAK-1567)
> * For Blob GC case it would be preferable if the query can be routed to Mongo replica instead of loading primary
> Having an impl which works directly on DBCollection level would be better



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