[jboss-jira] [JBoss JIRA] Closed: (JBAS-5583) Review timer.num_threads configs in JGroups protocol stacks

[Brian Stansberry (JIRA)]

     [ https://jira.jboss.org/jira/browse/JBAS-5583?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Brian Stansberry closed JBAS-5583.
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    Resolution: Done


Yes. I think 12 is a reasonable number.

> Review timer.num_threads configs in JGroups protocol stacks
> -----------------------------------------------------------
>
>                 Key: JBAS-5583
>                 URL: https://jira.jboss.org/jira/browse/JBAS-5583
>             Project: JBoss Application Server
>          Issue Type: Task
>      Security Level: Public(Everyone can see) 
>          Components: Clustering
>            Reporter: Brian Stansberry
>            Assignee: Brian Stansberry
>             Fix For: JBossAS-5.0.0.CR2
>
>
> Per Bela:
> I assume you are aware of the fact that we don't use the *jgroups.timer.num_threads* system property to configure the number of timer threads. Instead, property "timer.num_threads" is configured per instance of TP. Of course, in a shared transport, there's only 1 timer thread pool (as discussed in 5.5 http://www.jgroups.org/javagroupsnew/docs/manual/html/user-advanced.html#d0e2680), but you probably need to increase the default of 4 in case we have a shared transport with multiple channels on top of it. N * 4 would be a simple approach, where N is the max number of channels you have in AS. However, since not all channels are high-perf, you want to find tune this value, possibly to a lower number. 

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