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MQSeries.net Forum Index » Clustering » Channel sequence number problem in cluster

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nagabhb
PostPosted: Wed Jun 22, 2011 12:52 pm    Post subject: Channel sequence number problem in cluster Reply with quote

Apprentice

Joined: 20 Dec 2010
Posts: 42

Hi

By any chance sequence number mismatch will happen in clustering.If not can any help me out how cluster maintains this.

Thanks !!!
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mvic
PostPosted: Wed Jun 22, 2011 12:55 pm    Post subject: Re: Channel sequence number problem in cluster Reply with quote

Jedi

Joined: 09 Mar 2004
Posts: 2080

nagabhb wrote:
By any chance sequence number mismatch will happen in clustering.If not can any help me out how cluster maintains this.

Please post again with more details, it is not clear what sequence number you are referring to. Thanks
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Vitor
PostPosted: Wed Jun 22, 2011 12:56 pm    Post subject: Re: Channel sequence number problem in cluster Reply with quote

Grand High Poobah

Joined: 11 Nov 2005
Posts: 26093
Location: Texas, USA

nagabhb wrote:
By any chance sequence number mismatch will happen in clustering.


Of course it can happen in a clustered environment. It's as common as it is in a non-clustered environment for obvious reasons.

nagabhb wrote:
If not can any help me out how cluster maintains this.


The cluster maintain channel sequence numbers the same way as non-clustered sequence numbers are maintained for equally obvious reasons. If a mismatch ("in doubt") it's a manual process to resolve it as it is for non-clustered channels.

As per the documentation.
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nagabhb
PostPosted: Wed Jun 22, 2011 1:41 pm    Post subject: Reply with quote

Apprentice

Joined: 20 Dec 2010
Posts: 42

Ok thanks for the quick response.So irrespective of distributed or clustering it is same.

I used to get sequence no mismatch problem for channels in distributed, but never encountered in clustering, that's why i was just wondering that cluser work load algarithm will manage even if some problem arrises.

Warm Regards.
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Vitor
PostPosted: Thu Jun 23, 2011 4:28 am    Post subject: Reply with quote

Grand High Poobah

Joined: 11 Nov 2005
Posts: 26093
Location: Texas, USA

nagabhb wrote:
I used to get sequence no mismatch problem for channels in distributed, but never encountered in clustering, that's why i was just wondering that cluser work load algarithm will manage even if some problem arrises.


The most common cause (but not the only cause) of sequence number mismatches is one end of the channel being manually edited without proper thought or process. Because the cluster automatially manages the majority of channels it uses, this source of error is eliminated.
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