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Struts & Hibernate
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| | | Regarding restricting number of instant for MDB | Regarding restricting number of instant for MDB 2004-08-27 - By SOURABH Srivastava
Back
Changing max-beans-in-free-poo to 6 will degrade the performance. You change
this to
max beans in pool = 100
initial = 30
If you feel there will be too many messages, then create 5-10 extra threads in
the server and allocate those threads to JMS queue.
Thanks
Sourabh
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From: An interest list for Sun Java Center J2EE Pattern Catalog on behalf of
Kamaraj, Pushparaj
Sent: Mon 7/19/2004 3:03 AM
To: J2EEPATTERNS-INTEREST@(protected)
Subject: Regarding restricting number of instant for MDB
Hi,
We are having Message driven bean and other session beans in the
same container.
The characteristics of MDB is whenever a message is added to the JMS
queue it will be instantiated to serve the message.
We are expecting there will be large number of messages coming to
JMS queue. If the system start associating a MDB for each message then there
will be many processes running in parallel, which will reduce the system
performance. How to restrict the maximum number of active MDB in the system?
And the configuration should not affect other session bean instants. If we
restrict the maximum instant to 10, at the most there will be only 10 MDBs
and other request will be waiting in the JMS queue.
We are using the following configuration to achieve the above
requirement. Is that correct?
<message-driven-descriptor>
<pool>
<max-beans-in-free-pool>6</max-beans-in-free-pool>
<initial-beans-in-free-pool>3</initial-beans-in-free-pool>
</pool>
</message-driven-descriptor>
Thanks,
K.Pushparaj.
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