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MQSeries.net Forum Index » IBM MQ Java / JMS » WAS Listener Ports for MDB's

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smoothCrimenel
PostPosted: Mon Nov 16, 2009 3:14 am    Post subject: WAS Listener Ports for MDB's Reply with quote

Novice

Joined: 20 Jul 2009
Posts: 10
Hello All,

Hope you doing great...

I was wondering if any one can share with me or guide me that how can I restart a WAS listener port if its stopped through java code?

In the application i want to make sure that before I put the request in MQ the LP's are running and not stopped.

After my initial research I have found that possible options may either through JMX or PCF? I am not sure, which is the better or their pros/cons

Can any one guide me what is the best way to do it?

Have a nice day!!
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moonwalker
PostPosted: Tue Jan 19, 2010 10:22 pm    Post subject: Reply with quote

Apprentice

Joined: 02 Jun 2009
Posts: 42
Hi,

The Listeners on WAS will not go down just like that until the MDB is unable to process the Message. The listener goes down only when the maximum retry count has been reached and still the message is unable to be processed.

If a backout queue has been configured for the queue manager then such a message will be moved to the bakout queue giving room for the next message in the sequence thereby avoiding the lister to go down.

I don't think there is any other way to check if WAS listener is up before putting the message.

One of the best approach to ensure that lister is always up is to configure a backout queue.
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