[jira] Resolved: (SOLR-1843) JMX name collision when running multiple SOLR instances/webapps in the same ServletContainer

["Hoss Man (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SOLR-1843?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Hoss Man resolved SOLR-1843.
----------------------------

         Assignee: Hoss Man
    Fix Version/s: 1.5
       Resolution: Fixed

Committed revision 942292.

Constantijn: thanks for this suggestion.  The one significant change i made from your original files (BTW: a patch would have been much easier to review) is that i made the "rootName" option completely replace the previous default: "solr/" + coreName (as opposed to your version where only the "solr" literal was was replaced by the rootName)

Since this lives in solrconfig.xml it's a core specific setting, and core properties can be used to include the coreName in the rootName if that's what people desire

> JMX name collision when running multiple SOLR instances/webapps in the same ServletContainer
> --------------------------------------------------------------------------------------------
>
>                 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
>            Assignee: Hoss Man
>            Priority: Minor
>             Fix For: 1.5
>
>         Attachments: JmxMonitoredMap.java, SolrConfig.java
>
>   Original Estimate: 0h
>  Remaining Estimate: 0h
>
> 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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