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From "Jukka Zitting (JIRA)" <j...@apache.org>
Subject [jira] Updated: (JCR-2546) SISM blocks the item state cache when loading a new item
Date Wed, 06 Oct 2010 14:00:32 GMT

     [ https://issues.apache.org/jira/browse/JCR-2546?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Jukka Zitting updated JCR-2546:
-------------------------------

    Fix Version/s: 1.6.4

Thanks! I committed the patch to the 1.6 branch in revision 1005043.

> SISM blocks the item state cache when loading a new item
> --------------------------------------------------------
>
>                 Key: JCR-2546
>                 URL: https://issues.apache.org/jira/browse/JCR-2546
>             Project: Jackrabbit Content Repository
>          Issue Type: Improvement
>          Components: jackrabbit-core
>            Reporter: Jukka Zitting
>            Assignee: Jukka Zitting
>             Fix For: 1.6.4, 2.1.0
>
>         Attachments: JCR-2546_1.6.txt
>
>
> The SharedItemStateManager.getNonVirtualItemState() method contains a loadItemState()
call within a "synchronized (cache)" block. This prevents all item state cache access while
a new item is being loaded from the persistence manager. I have at least one case where this
has caused a serious performance drop, essentially synchronizing repository access for all
readers.

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