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MQSeries.net Forum IndexWebSphere Message Broker Support[ESQL] Best way to shorten correlation ID?

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ironslab
PostPosted: Wed Oct 31, 2018 7:37 am Post subject: [ESQL] Best way to shorten correlation ID? Reply with quote

Newbie

Joined: 31 Oct 2018
Posts: 2

Hi forum. First time poster.

I'm currently using InputLocalEnvironment.Destination.SOAP.Reply.ReplyIdentifier to generate a correlationID.

The thing is, the recipient of the message only handles 32 characters, therefore is truncating the string to 32.

I'm thinking of using substring to reduce the length but I am not sure if that's the best way to do so.
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ganesh
PostPosted: Wed Oct 31, 2018 7:57 am Post subject: Reply with quote

Master

Joined: 18 Jul 2010
Posts: 269

What are you trying to do with correlation ID in web service?
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ironslab
PostPosted: Fri Nov 02, 2018 12:53 pm Post subject: Reply with quote

Newbie

Joined: 31 Oct 2018
Posts: 2

It's used to communicate with a AS400 backend through MQ. We use it to identify the corresponding response to our request within a queue.
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fjb_saper
PostPosted: Fri Nov 02, 2018 7:59 pm Post subject: Reply with quote

Grand Poobah

Joined: 18 Nov 2003
Posts: 19770
Location: LI,NY

ironslab wrote:
It's used to communicate with a AS400 backend through MQ. We use it to identify the corresponding response to our request within a queue.

You should let MQ take care of this and return as correlation-id the message-id or the request...
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gbaddeley
PostPosted: Sun Nov 04, 2018 3:19 pm Post subject: Reply with quote

Padawan

Joined: 25 Mar 2003
Posts: 1898
Location: Melbourne, Australia

Quote:
I'm currently using InputLocalEnvironment.Destination.SOAP.Reply.ReplyIdentifier to generate a correlationID.
The thing is, the recipient of the message only handles 32 characters, therefore is truncating the string to 32.

MQ's MQMD CorrelationId field is exactly 24 bytes of binary data. If you were generating your own, it should be unique to 24 bytes, not 32.
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Glenn
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