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| How to find the Queue which triggers the delivery report |
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| yasaboy |
 Posted: Thu Jan 15, 2015 7:45 pm Post subject: How to find the Queue which triggers the delivery report |
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Voyager
Joined: 23 Jun 2014
Posts: 90
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Hi,
I have enabled a delivery report option in TEST.Q1 , TEST.Q2 and if the messages added to that queue is delivered TEST.Q3 receives a delivery report.
So we add a callback to TEST.Q3 to get the messages in the delivery queue. What is the method to determine which queues (Q1 or Q2) delivery report is received by the Q3 callback ?
Is there any field in MQMD that we can use to add the name of the output queue (Q1,Q2) when we set the m_Md.ReplyToQ and m_Md.ReplyToQMgr ? |
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| Vitor |
| Posted: Fri Jan 16, 2015 5:07 am Post subject: Re: How to find the Queue which triggers the delivery report |
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Grand High Poobah
Joined: 11 Nov 2005
Posts: 26093
Location: Texas, USA
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| yasaboy wrote: |
| I have enabled a delivery report option in TEST.Q1 , TEST.Q2 and if the messages added to that queue is delivered TEST.Q3 receives a delivery report. |
Which queue option is that? I thought a Confirmation Of Delivery report was a message option not a queue option. Like Confirmation Of Arrival.
| yasaboy wrote: |
| So we add a callback to TEST.Q3 to get the messages in the delivery queue. What is the method to determine which queues (Q1 or Q2) delivery report is received by the Q3 callback ? |
In my world, when a message with COD (or COA) set is consumed (or placed on the queue), the Report message is sent to the ReplyToQ on the message.
| yasaboy wrote: |
| Is there any field in MQMD that we can use to add the name of the output queue (Q1,Q2) when we set the m_Md.ReplyToQ and m_Md.ReplyToQMgr ? |
Yes, those fields. I don't know how you're setting it at the queue level so I can't comment really.
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Honesty is the best policy.
Insanity is the best defence. |
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| yasaboy |
| Posted: Sun Jan 18, 2015 8:40 pm Post subject: Re: How to find the Queue which triggers the delivery report |
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Voyager
Joined: 23 Jun 2014
Posts: 90
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| yasaboy wrote: |
| Is there any field in MQMD that we can use to add the name of the output queue (Q1,Q2) when we set the m_Md.ReplyToQ and m_Md.ReplyToQMgr ? |
Yes, those fields. I don't know how you're setting it at the queue level so I can't comment really.[/quote]
For the messages in Q1 and Q2 we set m_Md.ReplyToQ=Q3 and m_Md.ReplyToQMgr=QmgrName.
So as expected when some message at Q1 or Q2 is consumed the delivery report is received at Q3. If we take the messages of Q3 and MQGMO->ResolvedQName it gives Q3. That is also correct.
But what I want here is when message received at Q3 I want to determine the original queue which prompted this reply message at Q3, which is either Q1 or Q2 . Is there anyway of getting this ? |
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| bruce2359 |
| Posted: Mon Jan 19, 2015 5:56 am Post subject: Re: How to find the Queue which triggers the delivery report |
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Poobah
Joined: 05 Jan 2008
Posts: 9399
Location: US: west coast, almost. Otherwise, enroute.
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| yasaboy wrote: |
But what I want here is when message received at Q3 I want to determine the original queue which prompted this reply message at Q3, which is either Q1 or Q2 . Is there anyway of getting this ? |
AFIK, there is no method inbuilt into the MQ product to identify the name of the queue from where a message is consumed.
You (your developer) could place the source-queue name in an unused MQMD field or as part of the message body.
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| fjb_saper |
| Posted: Mon Jan 19, 2015 9:56 am Post subject: Re: How to find the Queue which triggers the delivery report |
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Grand High Poobah
Joined: 18 Nov 2003
Posts: 20696
Location: LI,NY
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| bruce2359 wrote: |
| yasaboy wrote: |
But what I want here is when message received at Q3 I want to determine the original queue which prompted this reply message at Q3, which is either Q1 or Q2 . Is there anyway of getting this ? |
AFIK, there is no method inbuilt into the MQ product to identify the name of the queue from where a message is consumed.
You (your developer) could place the source-queue name in an unused MQMD field or as part of the message body. |
Don't do this. Use the message id / correlation Id. Set the corresponding flag on the original message and the response correlation Id will tell you which message the acknowledgement is for. Now I would hope that your developer can determine on hand of the sent message where he originally sent it to... 
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