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| Queue Manager clusters |
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| manishpnp |
 Posted: Wed May 21, 2008 10:06 pm Post subject: Queue Manager clusters |
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Apprentice
Joined: 21 Feb 2008
Posts: 46
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Hi experts,
I have some confusion while reading Queue Manager Cluster manual.
What is different between Distributed-queuing environment and WebSphere MQ Queue Manager clusters?
Thanks in Advanced. |
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| AkankshA |
| Posted: Wed May 21, 2008 10:16 pm Post subject: |
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Grand Master
Joined: 12 Jan 2006
Posts: 1494
Location: Singapore
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| Vitor |
| Posted: Thu May 22, 2008 12:06 am Post subject: Re: Queue Manager clusters |
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Grand High Poobah
Joined: 11 Nov 2005
Posts: 26093
Location: Texas, USA
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| manishpnp wrote: |
What is different between Distributed-queuing environment and WebSphere MQ Queue Manager clusters?
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One has the queues distributed, one has them clustered.
_________________
Honesty is the best policy.
Insanity is the best defence. |
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| gbaddeley |
| Posted: Thu May 22, 2008 5:43 pm Post subject: Re: Queue Manager clusters |
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Jedi Knight
Joined: 25 Mar 2003
Posts: 2538
Location: Melbourne, Australia
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| manishpnp wrote: |
Hi experts,
I have some confusion while reading Queue Manager Cluster manual.
What is different between Distributed-queuing environment and WebSphere MQ Queue Manager clusters?
Thanks in Advanced. |
Distributed means SDR/RCVR or SVR/RQSTR channels and transmission queues are used to transfer messages between queue managers. The channels are normally configured as one-to-one for all paths which are required.
Clustered means CLUSSDR/CLUSRCVR channels are used to transfer messages between queue managers. There is one "system cluster" transmission queue on each queue manager. There is a minimum required config for each queue manager to have one CLUSRCVR, and at least one CLUSSDR which points to a "full repository" queue manager. MQ then defines more channels automatically to take care of any one-to-one paths which are required.
This is much easier to set up in complex environments than traditional distributed queueing.
Maybe I am just repeating what has been posted elsewhere ad nauseum? Its the first time I have said this, so its now off my chest, and I can quote it from now on.. 
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Glenn |
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| bruce2359 |
| Posted: Thu May 22, 2008 7:12 pm Post subject: |
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Poobah
Joined: 05 Jan 2008
Posts: 9471
Location: US: west coast, almost. Otherwise, enroute.
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The terms Distributed and Clustered are WMQ terms describing configuration/topology. One other possible configuration is a single queue manager that is not connected to any other queue manager - neither distributed (private, point-to-point channels), nor part of a cluster (cluster channels).
A queue manager can be distributed and/or clustered.
A WMQ Concepts and Planning manual will help with these high-level definitions.
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Lex Orandi, Lex Credendi, Lex Vivendi. As we Worship, So we Believe, So we Live. |
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| crossland |
| Posted: Fri May 23, 2008 1:55 am Post subject: Re: Queue Manager clusters |
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Master
Joined: 26 Jun 2001
Posts: 248
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| manishpnp wrote: |
Hi experts,
I have some confusion while reading Queue Manager Cluster manual.
What is different between Distributed-queuing environment and WebSphere MQ Queue Manager clusters?
Thanks in Advanced. |
With distributed queuing, you will generally have one local queue which other remote queue managers will point to using remote queues.
With Cluster queues, you can have more than one instance of a local queue within a cluster of queue managers. Other queue managers that are within the cluster can access these queues without remote queue definitions.
Hope this helps,
Tim
http://www.inspirotechnic.com |
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