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From "cvalois (JIRA)" <j...@apache.org>
Subject [jira] Commented: (SOLR-1841) Unregistering of Searcher MBean doesn't work in Websphere
Date Wed, 23 Jun 2010 18:52:54 GMT

    [ https://issues.apache.org/jira/browse/SOLR-1841?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12881824#action_12881824
] 

cvalois commented on SOLR-1841:
-------------------------------

I would like to use this patch because I'm having this issue but I'm not really sure how to
install it. Could you please tell me the best way to update the war file with the changes?


> Unregistering of Searcher MBean doesn't work in Websphere
> ---------------------------------------------------------
>
>                 Key: SOLR-1841
>                 URL: https://issues.apache.org/jira/browse/SOLR-1841
>             Project: Solr
>          Issue Type: Bug
>         Environment: Websphere Application Server 6.1
>            Reporter: Patrik Nordebo
>            Priority: Minor
>         Attachments: patch, SOLR-1841.patch
>
>
> On a Websphere cluster, all MBeans registered in the default MBean server get renamed
on registration (it adds properties based on which node and cell in the Websphere cluster
the process was running).  This means that when Solr tries to unregister an MBean (e.g. an
old searcher), the old MBean is never removed.  In the case of a rebind the binding of the
new MBean fails because it tries to register a name that is already taken.
> To get around this the name the mbean gets assigned must be stored somewhere where it
can be looked up when we need to remove the binding.

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