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| kevinQ |
 Posted: Mon Oct 06, 2008 9:24 am Post subject: Running two channel listeners for the same queue manager |
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Novice
Joined: 09 Apr 2008
Posts: 21
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Hi, All,
Would it cause any problem if I run two channel listeners for the same queue manager?
In our division, we have been using one port for all the queue managers we have. Now we are connecting our hub queue manager to another division, and they have been using a totally different port as us. The firewall has been opened for their port number. So the easiest way for us to connect is to run another channel listener to listen to that port number. We tried and it seems to work, but not sure if there is any negative impact to the queue manager by doing this.
Wondering if anybody has any similar experience, and how did it work. Any comment is appreciated. |
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| bruce2359 |
| Posted: Mon Oct 06, 2008 9:29 am Post subject: |
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Poobah
Joined: 05 Jan 2008
Posts: 9471
Location: US: west coast, almost. Otherwise, enroute.
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No problems at all. 2nd channels between the same qmgrs have been implemted for qos, encrpytion, channel saturation.
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ב''ה
Lex Orandi, Lex Credendi, Lex Vivendi. As we Worship, So we Believe, So we Live. |
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| PeterPotkay |
| Posted: Mon Oct 06, 2008 10:29 am Post subject: |
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Poobah
Joined: 15 May 2001
Posts: 7722
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We run a dedicated Listener for each business partner on our Edge Queue Manager. If one of them happens to go nuts with connection attempts, causing a denial of service style attack, only their Listener is overwhelmed. And its quick and painless for me to shutdown their Listener without effecting all the other companies.
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Peter Potkay
Keep Calm and MQ On |
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| kevinQ |
| Posted: Mon Oct 06, 2008 12:46 pm Post subject: |
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Novice
Joined: 09 Apr 2008
Posts: 21
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Thank you both for the input!!!  |
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| zhanghz |
| Posted: Mon Oct 06, 2008 7:25 pm Post subject: |
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Disciple
Joined: 17 Jun 2008
Posts: 186
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| multiple listeners? never really thought about it.. interesting... |
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| ranganathan |
| Posted: Tue Oct 07, 2008 4:38 am Post subject: Re: Running two channel listeners for the same queue manager |
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Centurion
Joined: 03 Jul 2008
Posts: 104
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| kevinQ wrote: |
In our division, we have been using one port for all the queue managers we have.
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Is it possible... ?!!  |
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| David.Partridge |
| Posted: Tue Oct 07, 2008 4:41 am Post subject: |
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Master
Joined: 28 Jun 2001
Posts: 249
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An example of a situation where you may wish to have multiple listeners is when you are running MQ on server in a DMZ that is multi-homed (i.e. has multiple network adapters).
In this case you may want to bind one listener (e.g. on port 1428) to a specific network adapter (using the IPADDR parameter of the definition)for connections from inside the organisation, while another listener (e.g. on port 1429) is bound to the network adapter that only sees the external connections.
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Cheers,
David C. Partridge |
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| exerk |
| Posted: Tue Oct 07, 2008 5:13 am Post subject: Re: Running two channel listeners for the same queue manager |
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Jedi Council
Joined: 02 Nov 2006
Posts: 6339
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| ranganathan wrote: |
| kevinQ wrote: |
In our division, we have been using one port for all the queue managers we have.
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Is it possible... ?!! |
Yes...provided the queue managers are on separate servers.
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| kevinQ |
| Posted: Tue Oct 07, 2008 2:27 pm Post subject: Re: Running two channel listeners for the same queue manager |
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Novice
Joined: 09 Apr 2008
Posts: 21
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| exerk wrote: |
| ranganathan wrote: |
| kevinQ wrote: |
In our division, we have been using one port for all the queue managers we have.
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Is it possible... ?!! |
Yes...provided the queue managers are on separate servers. |
Thanks for the clarification ...  |
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| ranganathan |
| Posted: Tue Oct 07, 2008 8:05 pm Post subject: Re: Running two channel listeners for the same queue manager |
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Centurion
Joined: 03 Jul 2008
Posts: 104
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[quote="exerk]
Yes...provided the queue managers are on separate servers.[/quote]
Ooops..  dint think that way.. sorry stupid of me... |
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