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| CICS Recovery |
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| coderunner |
 Posted: Fri Mar 16, 2007 2:43 am Post subject: CICS Recovery |
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Newbie
Joined: 21 Feb 2007
Posts: 7
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If a CICS transaction gets a message from a queue, thereby removing it from the queue, then the transaction abends unexpectedly, will the message be put back onto the queue or will it be lost?
Similarly, if the transaction is getting and processing several messages, which contain details of financial transactions, would you recomend issuing a syncpoint after each message has been processed?
Finally, can you recommend a manual that covers these topics? |
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| Vitor |
| Posted: Fri Mar 16, 2007 2:53 am Post subject: Re: CICS Recovery |
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Grand High Poobah
Joined: 11 Nov 2005
Posts: 26093
Location: Texas, USA
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| coderunner wrote: |
| If a CICS transaction gets a message from a queue, thereby removing it from the queue, then the transaction abends unexpectedly, will the message be put back onto the queue or will it be lost? |
If the get was performed under syncpoint in a unit of work (typically so in a CICS transaction) then the message will return to the queue.
| coderunner wrote: |
Similarly, if the transaction is getting and processing several messages, which contain details of financial transactions, would you recomend issuing a syncpoint after each message has been processed? |
Technically you issue a commit but whatever you call it, it should be issued at the end of a business transaction. This could be one message or several depending on your design.
| coderunner wrote: |
Finally, can you recommend a manual that covers these topics? |
The Syncpoint option is discussed in the Application Programming Guide & Reference.
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