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MQSeries.net Forum Index » General IBM MQ Support » Get duplicate message

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jeevan
PostPosted: Tue Aug 01, 2006 8:30 am    Post subject: Get duplicate message Reply with quote

Grand Master

Joined: 12 Nov 2005
Posts: 1432
Hi guys,

The system was working well. the other side of the cluster went down. Once it was brought up, out side we started getting duplicate message. Any suggestion where to look for ?

thanks
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vennela
PostPosted: Tue Aug 01, 2006 10:14 am    Post subject: Reply with quote

Jedi Knight

Joined: 11 Aug 2002
Posts: 4055
Location: Hyderabad, India
How do you know it is a duplicate message?
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jeevan
PostPosted: Tue Aug 01, 2006 10:23 am    Post subject: Reply with quote

Grand Master

Joined: 12 Nov 2005
Posts: 1432
The appl folks received that and reported to mq team.

I do not know is there any set up in mq about this ? Should it be looked at in jms codes, or in app server setup ? I do not think anything like this in mq setup.

I know one thing for sure that there reading style in jms like destructive or non destructive . But if it is non destructive, it should be always there why only two time?

Any suggestion?

thanks
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Michael Dag
PostPosted: Tue Aug 01, 2006 11:26 am    Post subject: Reply with quote

Jedi Knight

Joined: 13 Jun 2002
Posts: 2607
Location: The Netherlands (Amsterdam)
well... at least there is some form of detection for duplicates...

do you still get duplicates or was it only a couple (or perhaps < 50)...

what was done to bring up the cluster? perhaps a channel reset performed on an indoubt channel (messages sent but ack not received and straight reset was done)?

could be anything...
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