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| mqjeff |
 Posted: Wed Aug 22, 2012 4:08 am Post subject: |
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Grand Master
Joined: 25 Jun 2008
Posts: 17447
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The choice and placement of FRs is both important and not important at all.
In larger clusters it can be important or even vital to have FRs be dedicated queue managers that perform no application work.
In those situations, one can then find it important or potentially even vital that those FRs be highly available.
Every time it is determined that a queue manager should be made highly-available, one needs to examine the options available and determine the correct choice.
So you shouldn't make your FR an MI queue manager unless you've determined that your FR should be highly available.
And the fact that it's an FR does not automatically mean that it has to be highly available.
And the fact that it's an FR does not automatically mean that it should process no other work. |
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| nab054371 |
| Posted: Wed Aug 22, 2012 4:32 pm Post subject: |
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Disciple
Joined: 15 Nov 2006
Posts: 173
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| Given that we plan on having just the two MI QM's, I think it would be appropriate to have them serve as FR's. We do not expect high volume transactions in the foreseeable future. |
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| exerk |
| Posted: Wed Aug 22, 2012 11:57 pm Post subject: |
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Jedi Council
Joined: 02 Nov 2006
Posts: 6339
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| nab054371 wrote: |
| Given that we plan on having just the two MI QM's, I think it would be appropriate to have them serve as FR's... |
Is that just two MIs in the cluster, or two queue managers in the cluster?
_________________
It's puzzling, I don't think I've ever seen anything quite like this before...and it's hard to soar like an eagle when you're surrounded by turkeys. |
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| nab054371 |
| Posted: Thu Aug 23, 2012 4:05 am Post subject: |
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Disciple
Joined: 15 Nov 2006
Posts: 173
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| So its just two QM's in the cluster and they are both MI QM's. I have managed to successfully test this configuration. - i.e. both HA and clustering features. |
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| exerk |
| Posted: Thu Aug 23, 2012 4:07 am Post subject: |
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Jedi Council
Joined: 02 Nov 2006
Posts: 6339
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It seems odd to have just two queue managers in a cluster. What is it you're hoping to achieve with a cluster that you cannot achieve without a cluster?
_________________
It's puzzling, I don't think I've ever seen anything quite like this before...and it's hard to soar like an eagle when you're surrounded by turkeys. |
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| nab054371 |
| Posted: Thu Aug 23, 2012 11:18 am Post subject: |
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Disciple
Joined: 15 Nov 2006
Posts: 173
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Obviously scalability. I must admit I have seen quite a bit of such configurations in the past - so not quite surprised really.
Thank you all for your help, much appreciated. |
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