MQSeries.net :: View topic - Sndr.close()&Session.close() not releasing SVRCONN chann

ashupro · Posted: Thu Aug 04, 2005 7:21 am Post subject:

Hello,

I was getting the MQJMS2005 error (Max allotted channels being used up.). I identified couple of places, where QueueSessions were not being closed. These are now fixed, and all sessions are now being closed in the "finally" clause.

But Still, when we monitor the SVRCONN Channels in MQ, new channels are created whenever we create sessions, and these don't seem to be released, even if I close the sender and session objects.

I am wondering if I need to close the connection object as well, each time, to ensure that the CHANNEL is released each time.

We use a common QueueConnection object that is created in the controller servlet in the init method:

m_connection = factory.createQueueConnection();
m_connection.start ();

This object is then saved in ServletContext. For individual requests,

I retrieve the Connection object, create a session object and a sender object as follows:

QueueSession session = m_connection.createQueueSession(false, Session.AUTO_ACKNOWLEDGE);
QueueSender sender = session.createSender(requestQueue);

sender.send(...)

And in finally block, close the objects using
sender.close(), and session.close().

The connection object itself is not closed, as we re-use the connection object across multiple requests. Is this a problem ? Do I need to close the connection object every time (I guess it will be a bit expensive to do that) ?

Is there a CHANNEL caching in MQ that results in the channel not being closed everytime I close a session object ?

Please let me know