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| Transaction |
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| titus |
 Posted: Mon Nov 18, 2002 2:31 pm Post subject: Transaction |
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Novice
Joined: 14 Oct 2002
Posts: 23
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Hi Guys
I am having a message flow which is doing following functionality.
It will split into different messages and put into different queues. Is it any way to rollback messages which is already placed in the queue in case of any errors occurs in between.
Thanks in advance |
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| glennire |
| Posted: Mon Nov 18, 2002 9:25 pm Post subject: Transaction recovery |
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Newbie
Joined: 18 Nov 2002
Posts: 7
Location: USA
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The broker does not do this automatically?, control the input as a unit of work?, thereby rolling back the whole input if any translation fails?
_________________
Glenn Addison
423-956-5561
glennire@gmail.com |
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| titus |
| Posted: Tue Nov 19, 2002 8:54 am Post subject: |
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Novice
Joined: 14 Oct 2002
Posts: 23
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Thanks Glenn Addison .
Is there is any special setting needed for this in broker level?. |
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| glennire |
| Posted: Tue Nov 19, 2002 9:28 pm Post subject: |
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Newbie
Joined: 18 Nov 2002
Posts: 7
Location: USA
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I would expect this to be the default, and only setting. Best to confirm this by causing one of the outputs to fail translation to see that the entire message then fails, withholding the successful translation from the output as well.
_________________
Glenn Addison
423-956-5561
glennire@gmail.com |
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| glennire |
| Posted: Wed Nov 20, 2002 4:19 am Post subject: Broker Coordinated Transactional support |
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Newbie
Joined: 18 Nov 2002
Posts: 7
Location: USA
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The default setting in the MQInput node is Yes, received under sycpoint, however this can be changed as the documentation describes below to Auto or No.
If you need to also coordinate external database updates as a unit of work then must set the Coordinated Transaction property of the message flow and the default is to not be globally coordinated. This entails additional work to make sure the queue manager is set up to support XA transactionality.
From Control Center Help
Transactional support
When you create an MQInput node, the value you set for the Transaction Mode=[Yes|Automatic|No] property defines whether messages are received under syncpoint.
If you set it to Yes (the default), the message is received under syncpoint (that is, within an MQSeries unit of work). Any messages subsequently sent by an output node in the same instance of the message flow are put under syncpoint, unless the output node has explicitly overridden this.
If you set it to Automatic, the message is received under syncpoint if the incoming message is marked persistent. Otherwise, it is not. Any message subsequently sent by an output node is put under syncpoint, as determined by the incoming persistence property, unless the output node has explicitly overridden this.
If you set it to No, the message is not received under syncpoint. Any messages subsequently sent by an output node in the flow are not put under syncpoint, unless an individual output node has specified that the message should be put under syncpoint.
(The MQOutput node is the only output node that you can configure to override this option.)
_________________
Glenn Addison
423-956-5561
glennire@gmail.com |
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| titus |
| Posted: Wed Nov 20, 2002 7:01 am Post subject: |
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Novice
Joined: 14 Oct 2002
Posts: 23
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Thanks Glenn
Its got fixed. Thankx for ur help |
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