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MQGet Alternate

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mqraju

Posted: Thu Sep 23, 2010 5:17 am Post subject: MQGet Alternate

Newbie

Joined: 23 Sep 2010
Posts: 1

Hello, I'm trying to design an alternate approach for MQGet node due to its synchronous nature.

I'll store the copy of request message (leaving payload) in the temporary queue before writing to target application & on receiving the response message, I'll browse & read the corresponding header details based on the correlId from the temp queue. In this case, both the request & response message flows are asynchronous in nature & I'll be avoiding any thread tieup due to delay or no response from target system.

Will this approach is advisible or do we have any better alternate solution to retain the header details? Any of your suggestion is highly appreciated.

Note: Target application cannot return the received MQRFH2 header details.

Thanks,

WMBDEV1

Posted: Thu Sep 23, 2010 5:27 am Post subject: Re: MQGet Alternate

Sentinel

Joined: 05 Mar 2009
Posts: 888
Location: UK

mqraju wrote:

Will this approach is advisible or do we have any better alternate solution to retain the header details?

This sounds pretty standard to me and i've seen it done else where.

My only comment would be to maybe consider using a database as the store in case you ever wished to cluster your brokers and have any broker be able to handle the response message (which may be useful if one of them went down)..... but this depends on your setup and whether this is / will be a requirement.

This may be a little more complex also as you will have to removed old states that are no longer needed (for example if no resposne was received)

lancelotlinc

Posted: Thu Sep 23, 2010 5:38 am Post subject:

Jedi Knight

Joined: 22 Mar 2010
Posts: 4941
Location: Bloomington, IL USA

Quote:

This may be a little more complex also as you will have to removed old states that are no longer needed (for example if no resposne was received)

From the package com.ibm.websphere.services.util you can use TimerTable class and ResponseTimeout class to set a configurable timeout that would remove the context you have stored. This has millisecond granularity.
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