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| KAKA123 |
 Posted: Tue Mar 06, 2012 1:26 am Post subject: multi-instance with load balance issue |
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Novice
Joined: 23 Feb 2012
Posts: 13
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Hi experts,
I have one important question
If I setup multi-instance QM and our clients have versoin of MQ older than 7 and If I use load balance network. the load balance will point to the active instance QM server and if the server is fail then it will point to the other server, this is the normal way
My qustion is: If the network to server 1 lost (ex: cable unplugged) Is the QM will switch over to the other server or not because the load balance will point to the other server???
If you have any best solution please share me because I cant force our clients to upgrade their MQ to support multiple connection in the connection name of MQ |
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| mqjeff |
| Posted: Tue Mar 06, 2012 2:29 am Post subject: |
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Grand Master
Joined: 25 Jun 2008
Posts: 17447
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This is a question that has everything to do with how you set up the load balancer, and nothing to do with how you set up the queue manager.
So I don't think we can help.
If the load balancer has some way that the queue manager can signal it, then you can use MQ Service objects to run scripts that signal the load balancer when the queue manager starts and stops. |
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| fjb_saper |
| Posted: Tue Mar 06, 2012 6:48 am Post subject: |
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Grand High Poobah
Joined: 18 Nov 2003
Posts: 20756
Location: LI,NY
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Also think and use some common sense.
- If the load balancer cannot access the qmgr, does that mean that the qmgr is not healthy?
- If the qmgr is still healthy why should it fail over?
I think you are more looking towards an HA solution than a MI solution... 
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| mqjeff |
| Posted: Tue Mar 06, 2012 6:50 am Post subject: |
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Grand Master
Joined: 25 Jun 2008
Posts: 17447
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| fjb_saper wrote: |
| I think you are more looking towards an HA solution than a MI solution... |
MI is an HA solution. |
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| fjb_saper |
| Posted: Tue Mar 06, 2012 6:57 am Post subject: |
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Grand High Poobah
Joined: 18 Nov 2003
Posts: 20756
Location: LI,NY
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| mqjeff wrote: |
| fjb_saper wrote: |
| I think you are more looking towards an HA solution than a MI solution... |
MI is an HA solution. |
Doesn't treat network the same though does it?
Neither does it integrate multiple disparate and unrelated but loosely connected apps into a failover group...?
I know, it's all about how much money you can afford to spend ...
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| KAKA123 |
| Posted: Tue Mar 06, 2012 9:41 pm Post subject: |
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Novice
Joined: 23 Feb 2012
Posts: 13
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| fjb_saper wrote: |
Also think and use some common sense.
- If the load balancer cannot access the qmgr, does that mean that the qmgr is not healthy?
No maybe there is a problem in network side
- If the qmgr is still healthy why should it fail over?
It should fail over cous the load balancer point to the other instace server and this instance of QM should be active.
I think you are more looking towards an HA solution than a MI solution... |
please explain more and advise me also |
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| exerk |
| Posted: Wed Mar 07, 2012 1:16 am Post subject: |
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Jedi Council
Joined: 02 Nov 2006
Posts: 6339
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This post looks suspiciously like THIS post. What don't you like about the answers here?
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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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| mqjeff |
| Posted: Wed Mar 07, 2012 2:29 am Post subject: |
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Grand Master
Joined: 25 Jun 2008
Posts: 17447
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Also, remember, that no matter what you THINK you want to do, you can not use any kind of network load balancer between MQ channels except for SVRCONN/CLNTCONN pairs.
So, if you mean that your 'clients' are actually 'business partner queue managers', then you can't use the F5 here.
At all. Under any circumstances, you can not put any kind of network load balancer between two queue managers. CAN NOT.
Do you listen, please? You CAN NOT PUT A NETWORK LOAD BALANCER BETWEEN TWO QUEUE MANAGERS. |
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