| Author |
Message
|
| rraam75 |
 Posted: Tue Apr 04, 2006 11:30 pm Post subject: Design issue related to MQ Trigger |
 |
|
Novice
Joined: 18 Mar 2006
Posts: 14
|
Hello All,
We have webspheremq6 version to be run in windows2000. We expect to get 20000 messages perday in our queue. My question is
1. Is it good, to design in such a way to make queue as a trigger queue that will invoke an application to pick the message from the queue and reformat the message and put in a another remote queue. (or) to write an infinite program which keeps on monitoring the queue depth and gets the message from the queue process it and loop it back again to get the message again?
2. Let's say at a time 50 messages are populated in my local queue, then would 50 instances of my application will be running?
3. Is there is any impact if more and more instances are running even if the triggering program goes to end after it completes it job like processing the message and putting to another queue?
4. What precaution we have to take while writing the trigger program?
Thanks a lot in advance. |
|
| Back to top |
|
 |
| fschofer |
| Posted: Wed Apr 05, 2006 12:20 am Post subject: |
|
|
Knight
Joined: 02 Jul 2001
Posts: 524
Location: Mainz, Germany
|
|
| Back to top |
|
|
| wschutz |
| Posted: Wed Apr 05, 2006 1:38 am Post subject: |
|
|
Jedi Knight
Joined: 02 Jun 2005
Posts: 3316
Location: IBM (retired)
|
|
| Back to top |
|
|
| vennela |
| Posted: Wed Apr 05, 2006 4:26 am Post subject: |
|
|
Jedi Knight
Joined: 11 Aug 2002
Posts: 4055
Location: Hyderabad, India
|
| Quote: |
| 2. Let's say at a time 50 messages are populated in my local queue, then would 50 instances of my application will be running? |
No
If you set it up right, only one will be running |
|
| Back to top |
|
|
| rraam75 |
| Posted: Wed Apr 05, 2006 4:55 am Post subject: |
|
|
Novice
Joined: 18 Mar 2006
Posts: 14
|
Thanks All for the suggestion.
venella, I think that we will have 50 instance running when i set the trigger type as "EVERY". If iam not right pls correct me.
From all your experience, do you think to have trigger type as "EVERY" is right decision with a expectation of 20000 messages in a 12 hrs period |
|
| Back to top |
|
|
| jefflowrey |
| Posted: Wed Apr 05, 2006 4:59 am Post subject: |
|
|
Grand Poobah
Joined: 16 Oct 2002
Posts: 19981
|
| rraam75 wrote: |
| From all your experience, do you think to have trigger type as "EVERY" is right decision with a expectation of 20000 messages in a 12 hrs period |
TriggerType Every is almost never the right decision in any circumstances.
That doesn't mean I haven't implemented it... just that it wasn't the right idea... 
_________________
I am *not* the model of the modern major general.
Last edited by jefflowrey on Wed Apr 05, 2006 6:44 am; edited 1 time in total |
|
| Back to top |
|
|
| zpat |
| Posted: Wed Apr 05, 2006 6:39 am Post subject: |
|
|
Jedi Council
Joined: 19 May 2001
Posts: 5866
Location: UK
|
| Trigger on First, then have that program process the messages in the queue until it is empty. |
|
| Back to top |
|
|
| fjb_saper |
| Posted: Wed Apr 05, 2006 12:01 pm Post subject: |
|
|
Grand High Poobah
Joined: 18 Nov 2003
Posts: 20756
Location: LI,NY
|
Or trigger on type every and have the program share an area and check how many instances are active and limit the number of those instances by config. This will limit the amount of resources involved but allow parallel processing of your queue.
Enjoy 
_________________
MQ & Broker admin |
|
| Back to top |
|
|
|
|
