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MQSeries.net Forum Index » General IBM MQ Support » Old MQ died after huge amount of data - AMQ4059

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Old MQ died after huge amount of data - AMQ4059

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Buster

Posted: Mon Apr 29, 2024 6:38 am Post subject:

Newbie

Joined: 27 Apr 2024
Posts: 8
Location: Sweden

Gosh! Sometimes Murphy hits hard and unforgiving...

I just learned that our IT team have reconfigured the firewall and closing port 1414 without telling us. Port 1414 is what I use for the MQ!

This was done a short time after the tests went wild with 600 K messages. These two issues at the same time sent me into a black hole of trouble shooting.

Opening up the port again and I can connect towards the MQ, and remaining tests work well.

I apologize for taking your time for an issue like that, and I sincerely appreciate your help!

fjb_saper

Posted: Tue Apr 30, 2024 10:31 am Post subject:

Grand High Poobah

Joined: 18 Nov 2003
Posts: 20698
Location: LI,NY

the question is: how is your listener defined?
Does it get started by the qmgr? or is the start of it manual?
Could it be that there is already a listener running on that port?

Hope this helps

_________________
MQ & Broker admin

gbaddeley

Posted: Tue Apr 30, 2024 3:42 pm Post subject:

Jedi Knight

Joined: 25 Mar 2003
Posts: 2500
Location: Melbourne, Australia

Code:

runmqlsr -r -m MYMQ -t TCP -p 1414 &

This is a very old method of starting the MQ listener process.
Around 15 years ago (?), the LISTENER object type was added to MQ.

This allows the qmgr to auto start/stop listener(s), without requiring the MQ admin to use runmqslr command.

eg. Run this once:

Code:

define listener('MY.LISTENER') trptype(tcp) replace +
port(1414) control(qmgr)
start listener('MY.LISTENER')

_________________
Glenn

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