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Posted to dev@jackrabbit.apache.org by "Marcel Reutegger (JIRA)" <ji...@apache.org> on 2013/07/03 16:19:25 UTC
[jira] [Updated] (JCR-3617) Inconsistent CachingHierarchyManager
under concurrent access
[ https://issues.apache.org/jira/browse/JCR-3617?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Marcel Reutegger updated JCR-3617:
----------------------------------
Fix Version/s: 2.6.3
2.4.5
Merged fix into 2.4 (r1499412) and 2.6 (r1499415) branch.
> Inconsistent CachingHierarchyManager under concurrent access
> ------------------------------------------------------------
>
> Key: JCR-3617
> URL: https://issues.apache.org/jira/browse/JCR-3617
> Project: Jackrabbit Content Repository
> Issue Type: Bug
> Components: jackrabbit-core
> Affects Versions: 2.2, 2.4, 2.6
> Reporter: Marcel Reutegger
> Assignee: Marcel Reutegger
> Priority: Minor
> Fix For: 2.4.5, 2.6.3, 2.7.1
>
>
> This is a bit difficult to reproduce and so far I'm not able to provide a standalone test case for this issue. However, the following happens on the application level: a sub-tree is replaced with a modified version of the sub-tree while event listeners track those changes and try to get items for the given event paths. In some cases the repository throws an exception when Session.getItem() is called similar to what was reported in JCR-3368.
> It is important to note that the replaced subtree has some special characteristics. The root node of the sub-tree is re-created with the same UUID, while descendant nodes may be replaced with different UUIDs, but still have the same name.
> There seems to be a short time window where the modifying Session saves this kind of change, which gets propagated up to the ItemState layers and into the CachingHierarchyManager and the listening Session (owning the CachingHierarchyManager) access modified items at the same time through the CachingHierarchyManager. In some cases this seems to create an inconsistent state in the CachingHierarchyManager where a path is mapped to the old UUID (and vice versa) even though the replace already happened.
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