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From "Constantijn Visinescu (JIRA)" <j...@apache.org>
Subject [jira] Created: (SOLR-1843) JMX name collision when running multiple SOLR instances/webapps in the same ServletContainer
Date Wed, 24 Mar 2010 13:40:27 GMT
JMX name collision when running multiple SOLR instances/webapps in the same ServletContainer
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                 Key: SOLR-1843
                 URL: https://issues.apache.org/jira/browse/SOLR-1843
             Project: Solr
          Issue Type: Bug
          Components: Build
    Affects Versions: 1.4
         Environment: Resin 3.1.6, possibly other application containers
            Reporter: Constantijn Visinescu
            Priority: Minor
         Attachments: JmxMonitoredMap.java, SolrConfig.java

http://www.mail-archive.com/solr-user@lucene.apache.org/msg33921.html

When i run multiple independent SOLR webapps both with JMX enabled there seems to be some
sort of collision when registering Mbeans causing my application server to throw exceptions
for each mbean it tries to register for all applications after the first.

This seems to be due to collision issue of sorts with both applications trying to register
their mbeans under the name "solr"

This patch fixes the issue by allowing the user to specify the name under which MBeans are
registered in solrconfig.xml like so:
  <jmx rootName="mySolr" /> 

i went with rootName since in the code the variable is called jmxRootName.

Constantijn Visinescu

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