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