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From "Harry Metske (JIRA)" <j...@apache.org>
Subject [jira] Closed: (JSPWIKI-452) JMX implementation does not support More than one JSPWiki instance
Date Sat, 03 Jan 2009 17:19:44 GMT

     [ https://issues.apache.org/jira/browse/JSPWIKI-452?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Harry Metske closed JSPWIKI-452.
--------------------------------

    Resolution: Fixed

Fixed in 3.0.0-svn-43

> JMX implementation does not support More than one JSPWiki instance
> ------------------------------------------------------------------
>
>                 Key: JSPWIKI-452
>                 URL: https://issues.apache.org/jira/browse/JSPWIKI-452
>             Project: JSPWiki
>          Issue Type: Bug
>          Components: Core & storage
>    Affects Versions: 3.0
>         Environment: JSPWiki 3.0
>            Reporter: Harry Metske
>            Assignee: Harry Metske
>            Priority: Minor
>             Fix For: 3.0
>
>
> The current JMX implementation does not handle multiple JSPWiki instances per JVM very
well.
> This is true for both the new LoggerMBeans as for the other Admin type MBeans.
> The problem is that the ObjectName does not make the MBeans unique.
> Example names:
> JSPWiki:component=Core,name=Core bean
> JSPWiki:component=Loggers,name=com.ecyrd.jspwiki.WikiEngine
> So, depending on the order of startup, JSPWikiA or JSPWwikiB gets the MBean. 
> This can be a bit dangerous, you think you reload the Search manager for A, but B gets
it.
> But apparently we don't have that many users that use both multiple wiki's and the JMX.
> I think we need something that makes the MBean names unique. Question is what do we use
:
> 1. property jspwiki.applicationName ? (still no guarantee) 
> 2. context root of webapp (also no guarantee)
> 3. a random string appended, so this would make it like : JSPWiki-BGJSKIR:component=Core,name=Core
bean,  not very elegant
> 4. something perfect, any idea's ?
> The current AdminBeanManager also has a minor bug, saying it registers an MBean while
it didn't, I'll fix that soon.

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