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MQSeries.net Forum Index » WebSphere Message Broker (ACE) Support » Setting expiry for reply messages

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touchofcrypticthunder
PostPosted: Wed Jul 08, 2009 9:49 pm    Post subject: Setting expiry for reply messages Reply with quote

Apprentice

Joined: 08 Jul 2009
Posts: 30

I am working on Request-Reply scenario in WMB 6.1 which is shown below.

Appl A(Request) -> Broker -> (Request)Appl B
Appl A(Reply) <- Broker <- (Reply)Appl B

If for some reason Appl A is times out, reply messages will get piled up in response queue which needs monitoring. To avoid this situation, I am setting Expiry on the reply messages before sending replies to Appl A's response queue.

In WMB flow I am using MqReply node to send the reply. Problem here is Expiry which is set in MQMD header is not reflected in Reply messages when MqReply node is used. Instead it works fine when MqOutput node is used.

Is there any differences in the behaviour of MqReply and MqOutput nodes when comes to Message expiry?
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fjb_saper
PostPosted: Wed Jul 08, 2009 10:24 pm    Post subject: Re: Setting expiry for reply messages Reply with quote

Grand High Poobah

Joined: 18 Nov 2003
Posts: 20756
Location: LI,NY

touchofcrypticthunder wrote:
I am working on Request-Reply scenario in WMB 6.1 which is shown below.

Appl A(Request) -> Broker -> (Request)Appl B
Appl A(Reply) <- Broker <- (Reply)Appl B

If for some reason Appl A is times out, reply messages will get piled up in response queue which needs monitoring. To avoid this situation, I am setting Expiry on the reply messages before sending replies to Appl A's response queue.

In WMB flow I am using MqReply node to send the reply. Problem here is Expiry which is set in MQMD header is not reflected in Reply messages when MqReply node is used. Instead it works fine when MqOutput node is used.

Is there any differences in the behaviour of MqReply and MqOutput nodes when comes to Message expiry?

You are probably using the MQMD from the requester for the MQreply node. I would think that there is no expiry on that incoming message so there is no expiry on your reply... Have fun
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Vitor
PostPosted: Thu Jul 09, 2009 12:06 am    Post subject: Re: Setting expiry for reply messages Reply with quote

Grand High Poobah

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

touchofcrypticthunder wrote:
Problem here is Expiry which is set in MQMD header is not reflected in Reply messages when MqReply node is used. Instead it works fine when MqOutput node is used.


Setting how? Compute node immediately before the reply? How is the MQReply configured?

touchofcrypticthunder wrote:
Is there any differences in the behaviour of MqReply and MqOutput nodes when comes to Message expiry?


There are a number of differences between how the nodes behave! Hence my question above.
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