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From "Shashank Gupta (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (JCR-3547) Datastore GC doesn't reset updateModifiedDateOnAccess on datastore
Date Mon, 06 May 2013 06:00:19 GMT

     [ https://issues.apache.org/jira/browse/JCR-3547?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Shashank Gupta updated JCR-3547:
--------------------------------

    Status: Patch Available  (was: Open)

Patch attached https://issues.apache.org/jira/secure/attachment/12577777/GC_prevent_concurrent_run_final.patch
                
> 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: 2.5, 2.4
>            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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