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| More then two Full Repositories... |
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| JosephGramig |
 Posted: Tue Nov 18, 2008 5:47 am Post subject: More then two Full Repositories... |
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Grand Master
Joined: 09 Feb 2006
Posts: 1244
Location: Gold Coast of Florida, USA
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| Sam Uppu |
| Posted: Tue Nov 18, 2008 1:18 pm Post subject: Re: More then two Full Repositories... |
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Yatiri
Joined: 11 Nov 2008
Posts: 610
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Earlier we had more than 2 FRs and we didn't define the cluster sender channels explicitly. If one of the FR goesdown for some reason, it was causing the entire cluster to corrupt. Now we changed our cluster to have only 2 FRs which is working good.
The document what you pointed is saying defining the cluster sender/ receiver channels explicitly with other Full repository. then the wiring between the QMgrs will be a mess I believe if you have more than 2 FRs.
Let me know your thoughts.
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| JosephGramig |
| Posted: Wed Nov 19, 2008 5:19 am Post subject: |
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Grand Master
Joined: 09 Feb 2006
Posts: 1244
Location: Gold Coast of Florida, USA
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Sam Uppu,
You are wise to take the "Best Practice" choice of two and only two FRs in a cluster with explicit sender channels between them. There is no real advantage to having more then two FRs.
Even in this case, if only one of the QMGRs had an explicit sender to the other FR, they would get out of sync (corrupt in your words).
Probably what happened in your case was that the damage was already done by the time it was defined correctly.
Like the document says, defining a cluster sender at a FR tells the FR which other FRs to forward cluster updates to. If you do this after the fact, it will not magically resync the repository information. It will only keep information in the repositories up to date going forward.
_________________
Joseph
Administrator - IBM WebSphere MQ (WMQ) V6.0, IBM WebSphere Message Broker (WMB) V6.1 & V6.0
Solution Designer - WMQ V6.0
Solution Developer - WMB V6.1 & V6.0, WMQ V5.3 |
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