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| PankajS |
 Posted: Wed Feb 09, 2005 3:33 am Post subject: How can I delete messages from queue at runtime |
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Voyager
Joined: 27 Dec 2004
Posts: 82
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Hi Friends,
I need to develop the code in java which will
a) browse the queue b) Sort out the messages that have exceeded some time limit (say 5 seconds)and still are in the queue c) Then delete the message from the queue so that the queue is free for more messages to come. d) I need to invoke this program after some specified time interval
My queries are ..
1) How can I count the time of the message in the Queue(time for which
the message is there in the queue)
2) Do we have any method to get the time of the message in Queue.
3) wil expiry of message will help me in any way
Waiting for reply !!!!  |
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| KeeferG |
| Posted: Wed Feb 09, 2005 4:01 am Post subject: |
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Master
Joined: 15 Oct 2004
Posts: 215
Location: Basingstoke, UK
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You should use message expiry when pyutting the messages on the queue. Then when you browse the queue any messages that have expired will be removed. You can also set up report options to inform you of expired messages if you wish though I'd leave that alone until you have this part working.
_________________
Keith Guttridge
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Using MQ since 1995 |
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| zpat |
| Posted: Wed Feb 09, 2005 5:05 am Post subject: |
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Jedi Council
Joined: 19 May 2001
Posts: 5866
Location: UK
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But if you can't change the MQMD expiry value when creating the messages - you could compare the MQMD PUTTIME of the queued messages to the current system time, for each message and delete if older than your limit.
Never hard-code time or expiry values in programs as someone is bound to want to change them later. Remember though that expired messages don't get purged automatically - something has to attempt to browse or get them (which can be a simple program run at intervals).
You might trigger such a program on a queue depth being reached perhaps. |
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| KeeferG |
| Posted: Wed Feb 09, 2005 5:14 am Post subject: |
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Master
Joined: 15 Oct 2004
Posts: 215
Location: Basingstoke, UK
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Agreed, all values should be, where possible, passed in via paramters or configuration files as this gives the greatest portability/flexibility
_________________
Keith Guttridge
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Using MQ since 1995 |
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| cnu |
| Posted: Sun Feb 13, 2005 10:33 am Post subject: |
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Apprentice
Joined: 15 May 2004
Posts: 34
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What method we can use to delete the messages from the queue?
Thanks in advance |
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| fjb_saper |
| Posted: Sun Feb 13, 2005 1:23 pm Post subject: |
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Grand High Poobah
Joined: 18 Nov 2003
Posts: 20756
Location: LI,NY
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A simple get will do a destructive read and remove expired messages.
A browse will do a non destructive read but will remove expired messages.
Enjoy  |
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| jefflowrey |
| Posted: Mon Feb 14, 2005 5:23 am Post subject: |
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Grand Poobah
Joined: 16 Oct 2002
Posts: 19981
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