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https://issues.apache.org/jira/browse/OAK-1341?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Thomas Mueller updated OAK-1341:
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Fix Version/s: (was: 0.15)
0.16
> MongoMK: Implement garbage collection
> -------------------------------------
>
> Key: OAK-1341
> URL: https://issues.apache.org/jira/browse/OAK-1341
> Project: Jackrabbit Oak
> Issue Type: Sub-task
> Components: mongomk
> Reporter: Thomas Mueller
> Assignee: Thomas Mueller
> Priority: Minor
> Fix For: 0.16
>
>
> For the MongoMK (as well as for other storage engines that are based on it),
> garbage collection is most easily implemented by iterating over all documents
> and removing unused entries (either whole documents, or data within the
> document).
> Iteration can be done in parallel (for example one process per shard), and it
> can be done in any order.
> The most efficient order is probably the id order; however, it might be
> better to iterate only over documents that were not changed recently, by
> using the index on the "_modified" property. That way we don't need to
> iterate over the whole repository over and over again, but just over those
> documents that were actually changed.
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