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| amqrmppa.exe (channel process) is not able to up |
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| mqkrishna2010 |
 Posted: Wed May 14, 2014 7:41 am Post subject: amqrmppa.exe (channel process) is not able to up |
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Newbie
Joined: 10 Feb 2014
Posts: 4
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Hello Everyone,
In a windows server there is a issue that amqrmppa.exe(channel process) is down.
I have restarted the channel and the channel is in running state. Even though the channel is in running state the process amqrmppa.exe is not coming up and from task manager I can find this process is not running
Could you any one suggest if any other action needs to be taken against this
Br,
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| gbaddeley |
| Posted: Wed May 14, 2014 4:09 pm Post subject: |
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Jedi Knight
Joined: 25 Mar 2003
Posts: 2538
Location: Melbourne, Australia
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This process is part of the queue manager and must always be running. Check for messages in the error logs and for FFDC files to determine the reason why it is not up. Try restarting the queue manager.
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Glenn |
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| bruce2359 |
| Posted: Wed May 14, 2014 4:43 pm Post subject: Re: amqrmppa.exe (channel process) is not able to up |
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Poobah
Joined: 05 Jan 2008
Posts: 9471
Location: US: west coast, almost. Otherwise, enroute.
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| mqkrishna2010 wrote: |
I have restarted the channel and the channel is in running state. |
Are messages flowing across the channel?
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I like deadlines. I like to wave as they pass by.
ב''ה
Lex Orandi, Lex Credendi, Lex Vivendi. As we Worship, So we Believe, So we Live. |
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| tczielke |
| Posted: Wed May 14, 2014 5:30 pm Post subject: |
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Guardian
Joined: 08 Jul 2010
Posts: 941
Location: Illinois, USA
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| PaulClarke |
| Posted: Thu May 15, 2014 4:59 am Post subject: |
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Grand Master
Joined: 17 Nov 2005
Posts: 1002
Location: New Zealand
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The AMQRMPPA.EXE process is one possible process where a channel may run, it all depends on your configuration. Of both the channel definitions and your queue manager. A channel may run in amqcrsta, runmqlsr, runmqchi etc. So, with channels running or not running, there may be zero, one or many AMQRMPPA.EXE processes. None of these should be necessarily cause for alarm.
The real question is "are the channels behaving correctly". If they are then don't worry about it. If they are not then it might be better to let us know the symptoms you are seeing.
Cheers,
Paul.
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Paul Clarke
MQGem Software
www.mqgem.com |
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| PeterPotkay |
| Posted: Thu May 15, 2014 6:22 am Post subject: |
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Poobah
Joined: 15 May 2001
Posts: 7722
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| PaulClarke wrote: |
| A channel may run in amqcrsta, runmqlsr, runmqchi etc. |
I thought the MQ Listener process (runmqlsr) only listens for new connection attempts. And then hands off the actual channel to an instance of amqrmppa.
Paul, how/when would the channel stay running inside the listener?
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Peter Potkay
Keep Calm and MQ On |
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| PaulClarke |
| Posted: Thu May 15, 2014 7:55 am Post subject: |
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Grand Master
Joined: 17 Nov 2005
Posts: 1002
Location: New Zealand
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Hi Peter,
Well, if you have a good memory you may be able to remember to when the AMQRMPPA.EXE process didn't even exist. In those days threaded channels would either in the RUNMQCHI process (caller MCAs) or RUNMQLSR (responder MCAs).
However, this clearly has the limitation that, sooner or later, you are going to fill one or both of these processes. So, the concept of channel process pooling was added. And this introduced the AMQRMPPA process (PP standing for process pool). So, by default, the channel thread is handed of to one of the AMQRMPPA processes which are started as and when required.
However, you can, if you wish, revert back to non-pool process mode. If you set environment variable MQNOREMPOOL to anything, for example:
export MQNOREMPOOL=yes
and then run your listener you will find that the channels will now run in the listener itself.
This can be useful for demonstration purposes or to try something out since all channel error messages will now be written to the listener command prompt.
Note also that if the Queue Manager then the channels will also (all be it only briefly) run as a thread inside the listener.
Cheers,
Paul.
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Paul Clarke
MQGem Software
www.mqgem.com |
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