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| visamal |
 Posted: Sun Jun 28, 2009 9:15 pm Post subject: MQ in clustered environment |
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Newbie
Joined: 11 Jun 2009
Posts: 4
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My application (J2EE) is running in clustered environment. I need a Queue which should be in clustered environment. How can we control duplicate messages from different JVM (weblogic app server) in cluster. Do we need to control this from application or any other way. Pls suggest. I tried with Google and IBM site, I am not able to find any useful info.
Thanks in adv.
Last edited by visamal on Mon Jun 29, 2009 1:02 am; edited 1 time in total |
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| Mr Butcher |
| Posted: Sun Jun 28, 2009 9:56 pm Post subject: |
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Padawan
Joined: 23 May 2005
Posts: 1716
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are you talking about hardware cluster or mqseries cluster? clustering has been discussed here a lot, search and read here. read the mq cluster manual.
control doublicate messages in a cluster? could you please be more specific? in a mqseries cluster, there will be no doublicate messages. or is your application generating multiple messages? or or or?
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Regards, Butcher |
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| shashivarungupta |
| Posted: Sun Jun 28, 2009 11:25 pm Post subject: Re: MQ in clustered environment |
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Grand Master
Joined: 24 Feb 2009
Posts: 1343
Location: Floating in space on a round rock.
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| visamal wrote: |
My application (J2EE) is running in clustered environment. I need a Queue which should be in clustered environment. How can we control duplicate messages from different JVM (app server) in cluster. Do we need to control this from application or any other way. Pls suggest. I tried with Google and IBM site, I am not able to find any useful info.
Thanks in adv. |
AFAIK, One JVM can use multiple QCFs, and those QCFs should be logically point to different QMs and Respective Set of Queues in MQ.
When it comes to MQ, the objects such as Queue (can be shared in a cluster) and when application connects to a QM and does operations(open/put/get etc.) on a queue, it then be handled by Cluster.
Ya.. But when we talk about the cells or clusters at application end., then I have least visibility over there.
But logically, things should work if setup is unique (no duplicate settings).
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| shashivarungupta |
| Posted: Sun Jun 28, 2009 11:37 pm Post subject: |
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Grand Master
Joined: 24 Feb 2009
Posts: 1343
Location: Floating in space on a round rock.
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If you are using the WAS Admin settings then, i think, in WebSphere MQ messaging provider , there you can find the settings. And it provides the Help contents there only.
{For applications., WAS Admin. window, I dont have right now on my system But i tried to recall the settings and location of that.}
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| Vitor |
| Posted: Sun Jun 28, 2009 11:41 pm Post subject: |
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Grand High Poobah
Joined: 11 Nov 2005
Posts: 26093
Location: Texas, USA
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| Mr Butcher wrote: |
| are you talking about hardware cluster or mqseries cluster? |
Or indeed a WAS cluster?
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Honesty is the best policy.
Insanity is the best defence. |
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| Vitor |
| Posted: Sun Jun 28, 2009 11:43 pm Post subject: Re: MQ in clustered environment |
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Grand High Poobah
Joined: 11 Nov 2005
Posts: 26093
Location: Texas, USA
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| visamal wrote: |
| Do we need to control this from application or any other way. |
Depending on what kind of cluster you mean, the answer to this question is probably no.
| visamal wrote: |
| I tried with Google and IBM site, I am not able to find any useful info. |
Your copy of Google is broken; I turned up loads of stuff. I suggest you reinstall Google and try again. 
_________________
Honesty is the best policy.
Insanity is the best defence. |
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| WMBDEV1 |
| Posted: Mon Jun 29, 2009 2:13 am Post subject: Re: MQ in clustered environment |
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Sentinel
Joined: 05 Mar 2009
Posts: 888
Location: UK
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| Vitor wrote: |
Your copy of Google is broken; I turned up loads of stuff. I suggest you reinstall Google and try again. |
I tried looking for a guide on how to do this (again through google) but could not find anything. I guess my copy is broken also. Drat |
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| Vitor |
| Posted: Mon Jun 29, 2009 3:03 am Post subject: Re: MQ in clustered environment |
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Grand High Poobah
Joined: 11 Nov 2005
Posts: 26093
Location: Texas, USA
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| WMBDEV1 wrote: |
| Vitor wrote: |
Your copy of Google is broken; I turned up loads of stuff. I suggest you reinstall Google and try again. |
I tried looking for a guide on how to do this (again through google) but could not find anything. I guess my copy is broken also. Drat |
You couldn't turn up anything on "hardware clustering", "WMQ clustering", "WAS clustering" or the combination of these technologies via QCF? What search terms have you tried?
_________________
Honesty is the best policy.
Insanity is the best defence. |
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| WMBDEV1 |
| Posted: Mon Jun 29, 2009 3:12 am Post subject: Re: MQ in clustered environment |
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Sentinel
Joined: 05 Mar 2009
Posts: 888
Location: UK
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| Vitor wrote: |
| WMBDEV1 wrote: |
| Vitor wrote: |
Your copy of Google is broken; I turned up loads of stuff. I suggest you reinstall Google and try again. |
I tried looking for a guide on how to do this (again through google) but could not find anything. I guess my copy is broken also. Drat |
You couldn't turn up anything on "hardware clustering", "WMQ clustering", "WAS clustering" or the combination of these technologies via QCF? What search terms have you tried?
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No..... I was looking for the guide to reinstall google and upon not finding it, determinee that my google was broken also! Never mind just trying to lighten up a Monday morning  |
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| Vitor |
| Posted: Mon Jun 29, 2009 3:34 am Post subject: Re: MQ in clustered environment |
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Grand High Poobah
Joined: 11 Nov 2005
Posts: 26093
Location: Texas, USA
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| WMBDEV1 wrote: |
| No..... I was looking for the guide to reinstall google and upon not finding it, determinee that my google was broken also! Never mind just trying to lighten up a Monday morning |
Gosh am I embarassed............. 
Picked the wrong week to give up the caffine (again) 
(On the premise there's no right week to give up the caffine)
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| shashivarungupta |
| Posted: Mon Jun 29, 2009 4:27 am Post subject: Re: MQ in clustered environment |
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Grand Master
Joined: 24 Feb 2009
Posts: 1343
Location: Floating in space on a round rock.
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| Vitor wrote: |
| WMBDEV1 wrote: |
| No..... I was looking for the guide to reinstall google and upon not finding it, determinee that my google was broken also! Never mind just trying to lighten up a Monday morning |
Picked the wrong week to give up the caffine (again)
(On the premise there's no right week to give up the caffine) |
What are you doing.. thats the only catalyst..to keep our nerves active. 
Anyway.. adding some more info. that I said earlier about...
In WAS (I am running on assumption that the poster is talking about it.)
{Under Admin Console}
Resources > JMS Provider > Websphere MQ > Websphere MQ QCF, Websphere MQ Queue Destination etc. can be found and the settings out there can be done easily in cell/node level.
[Help about the fields is given in there in the help panel.]
You can check the 'Console' of that 'Server' for the errors/exceptions when you try to boot the jvm/server and make a connection to QM using qcf.
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