[jboss-jira] [JBoss JIRA] Updated: (EJBTHREE-1703) SLSB pooling statistics misleading when using ThreadLocalPool

[Galder Zamarreño (JIRA)]

     [ https://jira.jboss.org/jira/browse/EJBTHREE-1703?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Galder Zamarreño updated EJBTHREE-1703:
---------------------------------------

    Priority: Critical  (was: Major)


> SLSB pooling statistics misleading when using ThreadLocalPool
> -------------------------------------------------------------
>
>                 Key: EJBTHREE-1703
>                 URL: https://jira.jboss.org/jira/browse/EJBTHREE-1703
>             Project: EJB 3.0
>          Issue Type: Bug
>          Components: pool
>    Affects Versions: AS 4.2.3.GA, 1.0.0-GA
>            Reporter: Galder Zamarreño
>            Priority: Critical
>
> SLSB pooling statistics are hugely misleading when using default ThreadLocalPool:
> "The default pooling strategy used by EJB3 SLSBs is a ThreadLocalPool whose maximum is not really 
> quantifiable. The maximum is the maximum number of concurrent threads talking to that EJB3 SLSB 
> that the system can allocate. So, the MaxSize that you see in that JMX view is bogus at least for its 
> current definition of maximum.
> MaxSize - AvailableCount will give you the number of EJB3 SLSBs currently in use, in your case, 0. Again, 
> the meaning of AvailableCount for this pool strategy is not precise.
> CreateCount does represent the number of EJB3 SLSBs that have been created.
> CurrentSize is a bit more complicated to explain. For each thread that uses an EJB3 SLSBs, thread local 
> pool maintains a pool per each thread where there's an instance active in case it's needed again. So, 
> CurrentSize indicates how many of these active instances there are, which assuming that each thread 
> uses only one instance of the bean, matches the number of instances that have been created."
> Example:
> AvailableCount 	int 	R 	30 	MBean Attribute.
> MaxSize 	                int 	R 	30 	MBean Attribute.
> StateString 	        java.lang.String 	R 	Started 	MBean Attribute.
> State 	                int 	R 	3 	MBean Attribute.
> CurrentSize 	        int 	R 	165 	MBean Attribute.
> CreateCount 	        int 	R 	165 	MBean Attribute.
> RemoveCount 	        int 	R 	0 	MBean Attribute.

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