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MQSeries.net Forum Index » Mainframe, CICS, TXSeries » Help on why an extra sync point coming in logs?

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ravishankarn
PostPosted: Mon Sep 24, 2007 6:19 am    Post subject: Help on why an extra sync point coming in logs? Reply with quote

Novice

Joined: 06 Feb 2007
Posts: 14

Hi all,

We are using MQ 5.3.1.

Java based application server sends a beginTransaction (first syncpoint) followed by a message. CKBR browses the queue, invokes CKBP. CKBP gets the message. MQ CICS bridge wait interval is 20 seconds. CKBP takes a little long time to execute. Now CKBR is waiting for the second message which is either a COMMIT or ROLLBACK. This is the second syncpoint issues from application server. This second syncpoint abends. But when we looked at the CICS logs, we can see that there are in total THREE syncpoints. Struggled through documentation and discussions, but could not get why a third syncpoint came and who at what point issues it. When searched, we have seen some related problem in the page

http://www-1.ibm.com/support/docview.wss?rs=171&context=SSFKSJ&q=&uid=swg1PQ73553&loc=en_US&cs=utf-8&lang=en+en

which is resolved by a patch.

But then , the question is who issues the third syncpoint? Always we have seen this is happening. Kindly help if you know this/any links..Thanks a million.

Best
Ravion
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