[jboss-user] [JBoss Messaging] - Re: Configure MDB PoolSize

[Harry P.]

Harry P. [http://community.jboss.org/people/harishpandya] created the discussion

"Re: Configure MDB PoolSize"

To view the discussion, visit: http://community.jboss.org/message/625437#625437

--------------------------------------------------------------
Hi jaikiran,

                i want to use concurrency using JMS so i used topic implementation of JMS.
My standardjboss.xml is


 <proxy-factory-config>
        <JMSProviderAdapterJNDI>DefaultJMSProvider</JMSProviderAdapterJNDI>
        <ServerSessionPoolFactoryJNDI>StdJMSPool</ServerSessionPoolFactoryJNDI>
        <CreateJBossMQDestination>true</CreateJBossMQDestination>
        <!-- WARN: Don't set this to zero until a bug in the pooled executor is fixed -->
        <MinimumSize>2</MinimumSize>
        <MaximumSize>2</MaximumSize><!--how many parellel need for FPM -->
        <KeepAliveMillis>150000</KeepAliveMillis>
        <MaxMessages>15</MaxMessages>
        <MDBConfig>
          <ReconnectIntervalSec>10</ReconnectIntervalSec>
          <DLQConfig>
            <DestinationQueue>queue/DLQ</DestinationQueue>
            <MaxTimesRedelivered>10</MaxTimesRedelivered>
            <TimeToLive>0</TimeToLive>
          </DLQConfig>
        </MDBConfig>
      </proxy-factory-config>


Concurrency is achieved. But the problem is that concurrency is applied to a fixed no of messages after that remaining messages are taken sequentially. 
Ex.

No. of messages on topic(range)                             Connecurrency performed for message                         Sequential
                 11-15                                                                       4 (2 parellel)                                                 7-11
                21-24                                                                       10(5 parellel)                                                11-15

                25-29                                                                       18(9 parellel)                                                7-11
                35-40                                                                       34(17 perellel- best perf.)                              1-6


do you know why such pattern is followed & can we restrict it.


Thanks in Advance.
--------------------------------------------------------------

Reply to this message by going to Community
[http://community.jboss.org/message/625437#625437]

Start a new discussion in JBoss Messaging at Community
[http://community.jboss.org/choose-container!input.jspa?contentType=1&containerType=14&container=2042]

-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.jboss.org/pipermail/jboss-user/attachments/20110908/ee2621ab/attachment-0001.html