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https://issues.apache.org/jira/browse/OAK-2358?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Chetan Mehrotra resolved OAK-2358.
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Resolution: Fixed
Fix Version/s: 1.0.10
Assignee: Chetan Mehrotra
Marking it as resolved/fixed after merging the changes done for OAK-1794
> revisionGC leaves garbage around, for often-changed nodes
> ---------------------------------------------------------
>
> Key: OAK-2358
> URL: https://issues.apache.org/jira/browse/OAK-2358
> Project: Jackrabbit Oak
> Issue Type: Bug
> Components: core
> Affects Versions: 1.0.8
> Environment: 1.0.8.r1644758
> Reporter: Stefan Egli
> Assignee: Chetan Mehrotra
> Priority: Critical
> Fix For: 1.0.10
>
> Attachments: RevisionGCTest.java, oak2358mongo.log
>
>
> With oak-core 1.0.8.r1644758 we're seeing revision garbage piling up - even
> though revisionGC runs regularly (every night) and does not complain about
> any failures.
> This happens with often-changed nodes, ie with nodes that get more changes
> that fit into a mongo document, thus get split between revisionGC-runs.
> As a negative side-effect of this, the observation event generating (ie
> diffImpl) seems to have problems with such revision garbage and performs
> tremendously slow - presumably because all garbage-revisions are read even
> though the diff should be very small (ie the fromRev/toRev are only a few
> seconds, if ever minutes apart) - but I'll file a separate ticket about this.
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