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https://issues.apache.org/jira/browse/JCR-1138?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12552425
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Thomas Mueller commented on JCR-1138:
-------------------------------------

With revision 604872, the code to run the data store garbage collection is:

GarbageCollector gc = ((SessionImpl)session).createDataStoreGarbageCollector();
gc.scan();
gc.stopScan();
gc.deleteUnused();

The garbage collector will iterate over all nodes in the repository and update 
the last modified date. If all persistence managers implement the 
IterablePersistenceManager interface, this mechanism will be used; if not, the 
garbage collector will scan the repository using the JCR API starting from the 
root node.


> Data store garbage collection
> -----------------------------
>
>                 Key: JCR-1138
>                 URL: https://issues.apache.org/jira/browse/JCR-1138
>             Project: Jackrabbit
>          Issue Type: Improvement
>          Components: jackrabbit-core
>            Reporter: Thomas Mueller
>            Assignee: Thomas Mueller
>            Priority: Blocker
>             Fix For: 1.4
>
>
> Currently the data store garbage collection needs to be run manually. It 
> should be simpler to use (maybe tool based), or automatic.

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