SISM blocks the item state cache when loading a new item
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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
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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