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| starki78 |
 Posted: Wed Jan 05, 2011 8:09 am Post subject: Question about MQRO_PASS_DISCARD_AND_EXPIRY |
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Acolyte
Joined: 24 Sep 2007
Posts: 53
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Hello,
I've a request response scenario between a Service-Bus and MQ-Series
and would like to pass the Expiry from the request Message to the response Message.
Let's say the request message has a expiry of 300 seconds
I want to set
MQRO_PASS_DISCARD_AND_EXPIRY in order to copy the expiry from request to response message.
However it seems not to work.
In Java I do the following to send the message to the MQ-response queue
after reading it from MQ-request and I cannot change this code.
I hope that MQRO_PASS_DISCARD_AND_EXPIRY invokes some automatism
queueSender = session.createSender(queueObj);
outMessage.setJMSCorrelationID(msg.getJMSCorrelationID());
queueSender.send(outMessage);
Please let me know if I misunderstood the purpose of
MQRO_PASS_DISCARD_AND_EXPIRY
Thanks for feedback |
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| starki78 |
| Posted: Wed Jan 05, 2011 8:24 am Post subject: |
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Acolyte
Joined: 24 Sep 2007
Posts: 53
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The doce states:
You can specify the following to pass the discard option and expiry time of the original message to the report or reply message:
* MQC.MQRO_PASS_DISCARD_AND_EXPIRY
So the question is:
What is exactly meant by reply message in the context
of a request response scenario with Correlation-ID pattern |
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| bruce2359 |
| Posted: Wed Jan 05, 2011 8:46 am Post subject: |
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Poobah
Joined: 05 Jan 2008
Posts: 9469
Location: US: west coast, almost. Otherwise, enroute.
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Refer to the WMQ Application Programming Reference for MQRO_PASS_DISCARD_AND_EXPIRY and other Report Options.
_________________
I like deadlines. I like to wave as they pass by.
ב''ה
Lex Orandi, Lex Credendi, Lex Vivendi. As we Worship, So we Believe, So we Live. |
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| fjb_saper |
| Posted: Wed Jan 05, 2011 2:40 pm Post subject: |
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Grand High Poobah
Joined: 18 Nov 2003
Posts: 20756
Location: LI,NY
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| Quote: |
queueSender.send(outMessage);
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you are using the wrong api call for what you want to achieve.
You need to use the overloaded version of this method, that allows you to set the time to live (as a long?) and you may want to look into the attributes of the destination.
Have fun 
_________________
MQ & Broker admin |
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| starki78 |
| Posted: Fri Jan 07, 2011 12:57 am Post subject: |
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Acolyte
Joined: 24 Sep 2007
Posts: 53
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I already read the docu
MQRO_PASS_DISCARD_AND_EXPIRY
If this option is set on a message, and a report or reply is generated
because of it, the message descriptor of the report inherits:
v MQRO_DISCARD_MSG if it was set.
v The remaining expiry time of the message (if this is not an expiry
report). If this is an expiry report the expiry time is set to 60 seconds.
Yes. I could change the Java-Code in order to achieve this but usually I'm not allowed to change the Client-Code.
To be honest I don't understand any benefit that property could have
Thanks |
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| bruce2359 |
| Posted: Fri Jan 07, 2011 7:03 am Post subject: |
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Poobah
Joined: 05 Jan 2008
Posts: 9469
Location: US: west coast, almost. Otherwise, enroute.
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| Quote: |
| ...would like to pass the Expiry from the request Message to the response Message. |
Expiry value is set in the MQMD by the application that creates the message. This expiry value is decremented by the qmgr as the message sits in a queue (any queue) until the message is consumed, or it expires.
At the time the message is consumed, the MQMD (and application data) is passed to the consuming application. The original expiry value is not carried in the MQMD. The replying app will need to set the expiry value of the reply message.
_________________
I like deadlines. I like to wave as they pass by.
ב''ה
Lex Orandi, Lex Credendi, Lex Vivendi. As we Worship, So we Believe, So we Live. |
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| starki78 |
| Posted: Sun Jan 09, 2011 8:32 am Post subject: |
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Acolyte
Joined: 24 Sep 2007
Posts: 53
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| thanks for your confirmation! |
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