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https://issues.apache.org/jira/browse/OAK-3018?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Marcel Reutegger updated OAK-3018:
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Fix Version/s: (was: 1.3.9)
> Use batch-update in backgroundWrite
> -----------------------------------
>
> Key: OAK-3018
> URL: https://issues.apache.org/jira/browse/OAK-3018
> Project: Jackrabbit Oak
> Issue Type: Improvement
> Components: mongomk
> Reporter: Stefan Egli
> Labels: performance
>
> (From an earlier [post on the
> list|http://markmail.org/thread/mkrvhkfabit4osli]) The
> DocumentNodeStore.backgroundWrite goes through the heavy work of updating the
> lastRev for all pending changes and does so in a hierarchical-depth-first
> manner. Unfortunately, if the pending changes all come from separate commits
> (as does not sound so unlikely), the updates are sent in individual update
> calls to mongo (whenever the lastRev differs). Which, if there are many
> changes, results in many calls to mongo.
> OAK-2066 is about extending the DocumentStore API with a batch-update method.
> That one, once available, should thus be used in the {{backgroundWrite}} as
> well.
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