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MQSeries.net Forum Index » General IBM MQ Support » CCSID 1208 or 437

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sijtom0703
PostPosted: Thu Sep 18, 2014 2:02 pm    Post subject: CCSID 1208 or 437 Reply with quote

Voyager

Joined: 28 May 2011
Posts: 84
Location: USA
I have two Applications A & B. Application A puts message in QMA which is a Linux queue manager with default CCSID 1208. The QMA sends message to QMB which is a Windows queue manager with default CCSID 437. Application B consumes messages from QMB. Everything is fine.
Then I migrated the Windows queue manager QMB to a Linux platform and changed the CCSID as default 1208. The App B started getting issues related to data. Then I altered the QMB in Linux platform use CCSID as 437 and the App B did not see any issues with data after that.

I am an MQ admin and do not have much understanding of how CCSID defined in a MQ server really matter for a client application when there are no Data Conversion attributes enabled in the MQ server.

My understanding was the queue manager CCSID should be the default based on the platform used and never required to be altered.
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gbaddeley
PostPosted: Thu Sep 18, 2014 3:12 pm    Post subject: Reply with quote

Jedi Knight

Joined: 25 Mar 2003
Posts: 2538
Location: Melbourne, Australia
The issue is probably the data representation that App B is using internally.

Client channels do not have any conversion parameters (eg CONVERT YES / NO).

It is the responsibility of App B to specifiy the option to convert messages on the MQGET, and either specifiy the consuming CCSID or use the qmgr default, and know how to handle valid char data in that CCSID.
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Glenn
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