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| jainvik7 |
 Posted: Wed Nov 29, 2006 6:07 am Post subject: Just a doubt |
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Apprentice
Joined: 19 Feb 2006
Posts: 38
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| Is it a good idea to have more than one sender channels polling the same xmitq ? |
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| jefflowrey |
| Posted: Wed Nov 29, 2006 6:08 am Post subject: |
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Grand Poobah
Joined: 16 Oct 2002
Posts: 19981
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MQ Clustering does it all the time.
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| Michael Dag |
| Posted: Wed Nov 29, 2006 7:59 am Post subject: |
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Jedi Knight
Joined: 13 Jun 2002
Posts: 2607
Location: The Netherlands (Amsterdam)
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| jefflowrey wrote: |
| MQ Clustering does it all the time. |
true, but those are cluster sender channels and the clustering mechanism is involved.
how would you trigger the second 'normal' sender channel to activate on a regular xmitq?
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| jefflowrey |
| Posted: Wed Nov 29, 2006 8:06 am Post subject: |
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Grand Poobah
Joined: 16 Oct 2002
Posts: 19981
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jainvik7 didn't ask about triggering the channels...
Just using two channels against the same xmitq.
If you're saying you think that, outside of clustering, this is not a good idea... I agree.
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| Michael Dag |
| Posted: Wed Nov 29, 2006 8:12 am Post subject: |
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Jedi Knight
Joined: 13 Jun 2002
Posts: 2607
Location: The Netherlands (Amsterdam)
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| jefflowrey wrote: |
jainvik7 didn't ask about triggering the channels...
Just using two channels against the same xmitq.
If you're saying you think that, outside of clustering, this is not a good idea... I agree. |
I just thought... technically it might work, but not too practical 
so I guess we are in agreement
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| Nigelg |
| Posted: Wed Nov 29, 2006 8:36 am Post subject: |
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Grand Master
Joined: 02 Aug 2004
Posts: 1046
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This cannot be done, at least not at the same time, because each channel opens the channel MQOO_INPUT_EXCLUSIVE. Only one of the channels sharing the xmitq can run.
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| fjb_saper |
| Posted: Wed Nov 29, 2006 11:06 am Post subject: |
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Grand High Poobah
Joined: 18 Nov 2003
Posts: 20768
Location: LI,NY
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| Nigelg wrote: |
| This cannot be done, at least not at the same time, because each channel opens the channel MQOO_INPUT_EXCLUSIVE. Only one of the channels sharing the xmitq can run. |
It is mainly used by admins in situations where you have multiple paths to the same destination. If the preferred path becomes unavailable you can stop the corresponding channel and start a channel that uses one of the alternate paths. Using the same xmitq allows to not worry about having to shift messages from the xmitq.... 
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