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MQSeries.net Forum Index » General IBM MQ Support » MAXDEPTH and multiple queue managers

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farmer
PostPosted: Wed Jan 19, 2005 3:17 am    Post subject: MAXDEPTH and multiple queue managers Reply with quote

Newbie

Joined: 19 Jan 2005
Posts: 1
Hello,

I have the following problem.
At queue manager A I have 100 messages standing for queue manager B to be delivered into B.LQ .
B.LQ has a maxdepth of 10 messages. When I open the channel between queue manager A & B the queue B.LQ is filled up with 10 messages. The rest of the messages are in the transmission queue on queue manager A. At queue manager B I see that the dead.letter.queue depth is increasing. Not fast but one every 5 till 10 seconds.
When there are 5 messages into the dead.letter.queue on queue manager A the transmission queue on queue manager A contains 90 messages and there are 10 messages into the B.LQ on queue manager B.
When I increase the maxdepth of queue B.LQ on queue manager B there are then 95 messages into the B.LQ and 5 into the dead.letter.queue on queue manager B.

Can anyone explain me what happens? And what I have to do to prevent messages to come into the dead.letter.queue beside setting my maxdepth higher on queue B.LQ?

CU

Roel
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mqmhr
PostPosted: Wed Jan 19, 2005 5:01 am    Post subject: Re: MAXDEPTH and multiple queue managers Reply with quote

Centurion

Joined: 28 Dec 2004
Posts: 105
farmer wrote:


At queue manager B I see that the dead.letter.queue depth is increasing.



farmer wrote:


When there are 5 messages into the dead.letter.queue on queue manager A ...



Could you please confirm that the dead letter queue depth at QMgr A is increasing? It is expected that messages will fall into the dead letter queue of QMgr B as the max depth of remote queue is only 10. The dead letter queue at A might be filled up due some other application working improperly.

In general during remote communication , messages that cannot be delivered to the intended destination (this case B.LQ as it has reached its max depth) will be placed in the dead letter queue of the remote queue manager with an appropriate reason code field in the dead letter header MQDLH.

Hope I have not confused you further.
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