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Posted to oak-issues@jackrabbit.apache.org by "Julian Reschke (JIRA)" <ji...@apache.org> on 2017/10/11 08:14:02 UTC

[jira] [Created] (OAK-6806) RDBDocumentStore: version GC does not scale when there are many docs with long paths

Julian Reschke created OAK-6806:
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             Summary: 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


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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