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Date: Mon, 16 Feb 2009 10:02:04 -0800 (PST)
From: "Richa Khurana (JIRA)" <jira@apache.org>
To: dev@jackrabbit.apache.org
Subject: [jira] Commented: (JCR-1940) Exception when concurrently adding
 documents to Jack rabbit repository with clustering enabled
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    [ https://issues.apache.org/jira/browse/JCR-1940?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12674020#action_12674020 ] 

Richa Khurana commented on JCR-1940:
------------------------------------

This is not normal if you have a JR repo in DB. If 2 nodes cannot simultaneuly add documents to a JR repository then whats the point of clustering. Please help.

> Exception when concurrently adding documents to Jack rabbit repository with clustering enabled
> ----------------------------------------------------------------------------------------------
>
>                 Key: JCR-1940
>                 URL: https://issues.apache.org/jira/browse/JCR-1940
>             Project: Jackrabbit Content Repository
>          Issue Type: Bug
>          Components: jackrabbit-core
>    Affects Versions: 1.5.0
>         Environment: OS - Win 2000
> JackRabbit Jars - 1.5
>            Reporter: Richa Khurana
>
> We have a enabled jackrabbit clustering. In this mode following exception occurs when 2 users simultaneouly add documents to Jack rabbit repository registered with node id 1 and 2 respectively-
> 14:59:55,312 ERROR [DocumentHelper] Exception occurred while adding a manually uploaded document to the jackrabbit:
> javax.jcr.InvalidItemStateException: cafebabe-cafe-babe-cafe-babecafebabe has been modified externally
>         at org.apache.jackrabbit.core.ItemImpl.save(ItemImpl.java:1109)
>         at org.apache.jackrabbit.core.SessionImpl.save(SessionImpl.java:846)
> Another observation is that when we disable clustering and both users have same node id in cluster configuration in repository.xml, the error doesnt appear.

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