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https://issues.apache.org/jira/browse/OAK-6806?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Julian Reschke closed OAK-6806.
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> RDBDocumentStore: version GC does not scale when there are many docs with
> long paths
> ------------------------------------------------------------------------------------
>
> Key: OAK-6806
> URL: https://issues.apache.org/jira/browse/OAK-6806
> Project: Jackrabbit Oak
> Issue Type: Improvement
> Components: rdbmk
> Reporter: Julian Reschke
> Assignee: Julian Reschke
> Fix For: 1.7.14, 1.8.0
>
> Attachments: OAK-6806.diff
>
>
> Due to the way the RDB RevisionGC looks for split documents, it doesn't
> perform well at all in the presence of many documents with long paths.
> The reason is that we currently do not have a column for SDTYPE, and thus use
> pattern matching on the document IDs instead. However, once a document has
> long path in the document store, it appears to the GC has candidate split
> document, and thus is always read upon GC.
>
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