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From "Davide Giannella (JIRA)" <j...@apache.org>
Subject [jira] [Closed] (OAK-3878) Avoid caching of NodeDocument while iterating in BlobReferenceIterator
Date Mon, 13 Nov 2017 13:56:06 GMT

     [ https://issues.apache.org/jira/browse/OAK-3878?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Davide Giannella closed OAK-3878.
---------------------------------

Bulk close 1.7.11

> 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, 1.7.11
>
>
> {{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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