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| KIT_INC |
 Posted: Mon Oct 19, 2015 5:30 am Post subject: Any cons using a single Qmgr as full repository for 2 cluste |
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Knight
Joined: 25 Aug 2006
Posts: 589
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| Because of some network restriction in my shop. I cannot create another QMgr to act as full repository for another cluster. I think I can using the existing FR QMgr for CLUSTER1 as the FR Qmgr for a new CLUSTER2. I just like to find out if there is any CONS for doing this. I am using MQ V8 on Opensuse. |
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| Vitor |
| Posted: Mon Oct 19, 2015 5:47 am Post subject: |
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Grand High Poobah
Joined: 11 Nov 2005
Posts: 26093
Location: Texas, USA
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The only advice I'm aware of in this area is not to use an FR queue manager for anything other than being an FR (i.e. no applications).
This means it becomes quite common for a couple of luckless queue managers to be the FR for every cluster on the site.
The only thing to be aware of is to ensure the FR is sized appropriately.
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| fjb_saper |
| Posted: Mon Oct 19, 2015 1:11 pm Post subject: |
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Grand High Poobah
Joined: 18 Nov 2003
Posts: 20756
Location: LI,NY
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And make sure each cluster uses it's own cluster channel.
You may use a name list for the repository (reposNL) but do not use one for the cluster channels.
So an additional cluster means creating at least 2 more channels on the FR.
You may also want to test in dev / qa the impact of changing the namelist used in reposnl. In particular if you need to demote from FR to PR and promote to FR again for the change to take... You may or may not want to bounce the qmgr?
Have fun 
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| PeterPotkay |
| Posted: Mon Oct 19, 2015 4:33 pm Post subject: Re: Any cons using a single Qmgr as full repository for 2 cl |
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Poobah
Joined: 15 May 2001
Posts: 7722
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| KIT_INC wrote: |
| I think I can using the existing FR QMgr for CLUSTER1 as the FR Qmgr for a new CLUSTER2. |
"the" FR Qmgr for a new CLUSTERS? Single?
All MQ Clusters should have 2 Full Repositories.
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Peter Potkay
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| Vitor |
| Posted: Tue Oct 20, 2015 4:19 am Post subject: |
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Grand High Poobah
Joined: 11 Nov 2005
Posts: 26093
Location: Texas, USA
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| fjb_saper wrote: |
And make sure each cluster uses it's own cluster channel.
You may use a name list for the repository (reposNL) but do not use one for the cluster channels.
So an additional cluster means creating at least 2 more channels on the FR. |
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Honesty is the best policy.
Insanity is the best defence. |
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| Vitor |
| Posted: Tue Oct 20, 2015 4:20 am Post subject: Re: Any cons using a single Qmgr as full repository for 2 cl |
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Grand High Poobah
Joined: 11 Nov 2005
Posts: 26093
Location: Texas, USA
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| PeterPotkay wrote: |
| All MQ Clusters should have 2 Full Repositories. |
| Vitor wrote: |
| ... for a couple of luckless queue managers to be ... |
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| KIT_INC |
| Posted: Sun Nov 01, 2015 6:02 am Post subject: |
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Knight
Joined: 25 Aug 2006
Posts: 589
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| Thanks for the helps. Yes, will always have a secondary FR as recoommonded by IBM |
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| bruce2359 |
| Posted: Sun Nov 01, 2015 7:34 am Post subject: |
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Poobah
Joined: 05 Jan 2008
Posts: 9469
Location: US: west coast, almost. Otherwise, enroute.
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Two FRs will be used by the internal clustering software to allow new/changed/deleted cluster objects to be advertised to qmgrs that comprise the cluster.
Should one of the two FRs become inactive (shutdown, for example), the remaining FR will provide the FR cluster services to remaining qmgrs that comprise the cluster.
Should the one remaining FR become inactive, qmgrs in the cluster will not be able to discover cluster objects that exist elsewhere in the cluster.
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