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| Is it possible to configure a retention period for queues ? |
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| tomng92 |
 Posted: Mon Nov 26, 2001 12:19 pm Post subject: |
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Newbie
Joined: 25 Nov 2001
Posts: 1
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Hi,
Our app receives messages from another organisation. We wanted to automatically
delete messages older than 2 days.
Is there a configuration setting that
can do the above ?
thanks.
t.nguyen.
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| kolban |
| Posted: Mon Nov 26, 2001 12:38 pm Post subject: |
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Grand Master
Joined: 22 May 2001
Posts: 1072
Location: Fort Worth, TX, USA
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Each message in a queue has the concept of an "Expiry" interval. This is an absolute interval that starts counting down from the moment the message is put to the queue. It is measured in 1/10ths of a second. When the interval reaches zero, the message has expired and will not be retrieved by an MQGET.
Another solution is to browse each message and examine the MQMD PUTTIME field. For each message that is within a range, it can be deleted. This solution is not automatic and would required that you develop a programme to accomodate. |
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| StefanSievert |
| Posted: Wed Nov 28, 2001 4:38 pm Post subject: |
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Partisan
Joined: 28 Oct 2001
Posts: 333
Location: San Francisco
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To add to Kolban's expiry solution: If you cannot get the other organization to specify the expiry on the MQPUT, you could write a simple program (or maybe use a support pac) to read incoming messages off the queue, set the expiry to the desired (configurable) value and put it to the final inbound queue. You'd probably want to use the xxxx_PASS_ALL_CONTEXT options to preserve the original context fields.
One other solution could be to modify the application that processes the incoming messages such as to discard (ignore) messages older than your desired interval.
Each solution has it's pros and cons. The first one is non-invasive and re-usable, the second one is application specific, but gives you the chance to log the messages that you ignored if you'd wish to do so.
Just some more thoughts.
Cheers,
Stefan
[ This Message was edited by: StefanSievert on 2001-11-28 16:38 ] |
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