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https://issues.apache.org/jira/browse/OAK-3878?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16207252#comment-16207252
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Chetan Mehrotra commented on OAK-3878:
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[~reschke] Purpose of this api is for batch processing and those caller would
not be using the regular api. So its special purpose api not for generic use
> Avoid caching of NodeDocument while iterating in BlobReferenceIterator
> ----------------------------------------------------------------------
>
> Key: OAK-3878
> URL: https://issues.apache.org/jira/browse/OAK-3878
> Project: Jackrabbit Oak
> Issue Type: Improvement
> Components: documentmk
> Reporter: Chetan Mehrotra
> Assignee: Chetan Mehrotra
> Priority: Minor
> Fix For: 1.8
>
>
> {{BlobReferenceIterator}} in DocumentMK makes use of {{DocumentStore}} API to
> query the NodeDocument. This would cause all those NodeDocuments to be added
> to cache in DocumentStore. Due to this when blob gc is running cache usage
> would not be that effective due to all the associated churn.
> As these NodeDocument are only required for BlobGC logic and its not expected
> that this document would read again soon it would be better to skip caching
> of these documents within DocumentStore
> Similar requirement exist in VersionGC logic but there we use direct store
> based API which does not add such documents to the cache
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