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From "Thomas Mueller (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (JCR-3547) Datastore GC doesn't reset updateModifiedDateOnAccess on datastore
Date Wed, 15 May 2013 09:11:17 GMT

    [ https://issues.apache.org/jira/browse/JCR-3547?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13658185#comment-13658185
] 

Thomas Mueller commented on JCR-3547:
-------------------------------------

Committed in revision 1482732

                
> Datastore GC doesn't reset updateModifiedDateOnAccess on datastore
> ------------------------------------------------------------------
>
>                 Key: JCR-3547
>                 URL: https://issues.apache.org/jira/browse/JCR-3547
>             Project: Jackrabbit Content Repository
>          Issue Type: Bug
>          Components: jackrabbit-core
>    Affects Versions: 2.4, 2.5
>            Reporter: Shashank Gupta
>         Attachments: GarbageCollector.java.patch, GC_prevent_concurrent_run_app2.patch,
GC_prevent_concurrent_run_final.patch, GC_prevent_concurrnet_run_app1.patch
>
>
> In mark phase, GC updates store.updateModifiedDateOnAccess with current time, so that
datastore updates record’s lastModified timestamp upon subsequent read/scan.
>  But  GC doesn't reset it to 0. So even after GC completes, datastore will continue updating
lastModified timestamp on read invocations and it will have performance impact. 

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