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https://issues.apache.org/jira/browse/JCR-2546?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jukka Zitting resolved JCR-2546.
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Resolution: Fixed
Fix Version/s: 2.1.0
Assignee: Jukka Zitting
Fixed in revision 919458.
> 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: 2.1.0
>
>
> 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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