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https://issues.apache.org/jira/browse/OAK-1557?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Michael Marth updated OAK-1557:
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Fix Version/s: (was: 1.4)
1.3.6
> Mark documents as deleted
> -------------------------
>
> Key: OAK-1557
> URL: https://issues.apache.org/jira/browse/OAK-1557
> Project: Jackrabbit Oak
> Issue Type: Improvement
> Components: mongomk
> Reporter: Marcel Reutegger
> Assignee: Chetan Mehrotra
> Labels: performance, resilience
> Fix For: 1.3.6
>
>
> This is an improvement to make a certain use case more efficient. When there
> is a parent node with frequently added and removed child nodes, the reading
> of the current list of child nodes becomes inefficient because the decision
> whether a node exists at a certain revision is done in the DocumentNodeStore
> and no filtering is done on the MongoDB side.
> So far we figured this would be solved automatically by the MVCC garbage
> collection, when documents for deleted nodes are removed. However for
> locations in the repository where nodes are added and deleted again
> frequently (think of a temp folder), the issue pops up before the GC had a
> chance to clean up.
> The Document should have an additional field, which is set when the node is
> deleted in the most recent revision. Based on this field the
> DocumentNodeStore can limit the query to MongoDB to documents that are not
> deleted.
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