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From Michael Wechner <michael.wech...@wyona.com>
Subject Clustering and .lock file
Date Wed, 05 Dec 2007 20:24:21 GMT

I am trying to run my webapp within a Tomcat (5.0.30) cluster with two 

According to http://wiki.apache.org/jackrabbit/Clustering
each cluster node is loading its own repository.xml file resp. 
repository-cnode1.xml for node1 and repository-cnode2.xml for node2, 
whereas I have added the Cluster config to each repository config, e.g.

 <Cluster id="cnode2">
    <Journal class="org.apache.jackrabbit.core.journal.DatabaseJournal">
      <param name="path" value="${rep.home}/revision.log"/>
      <param name="url" value="jdbc:derby:${wsp.home}/db;create=true"/>

for repository-cnode2.xml.

When I startup the first node everything is fine, but when I startup the 
second node, then the log file tells me that it has a .lock detected and 
the repo already seems to be in use and hence cannot be used:

26237 2007-12-05 20:59:19,377 [http-9290-Processor25] WARN  
org.apache.jackrabbit.core.util.RepositoryLock.acquire():111  - Existing 
lock file /home/michi/src/wyona-svn/wyona/misc/foaf/jackrabbit/.lock 
detected. Repository was not shut down properly.
26265 2007-12-05 20:59:19,405 [http-9290-Processor25] ERROR 
org.wyona.yarep.impl.repo.jcr.JCRRepository.readConfiguration():326  - 
The repository home /home/michi/src/wyona-svn/wyona/misc/foaf/jackrabbit 
appears to be in use since the file named .lock is locked by another 

I thought the Cluster config would take care of this, but maybe I added 
it at the wrong position resp. within the wrong file. Is it possible 
that this also needs to be added to the 
jackrabbit/workspaces/default/workspace.xml file?
And if so, how can this be referenced resp. duplicated?

Resp. where exactly needs the Cluster config to be placed?



Michael Wechner
Wyona      -   Open Source Content Management   -    Apache Lenya
http://www.wyona.com                      http://lenya.apache.org
michael.wechner@wyona.com                        michi@apache.org
+41 44 272 91 61

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