| Author |
Message |
 Topic: Slow Subscribers |
eputsato
Replies: 37
Views: 21531
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 Forum: General IBM MQ Support Posted: Thu Apr 16, 2009 2:44 am Subject: Slow Subscribers |
| What is a subscription point. I mean how to publish to it? |
| Topic: Slow Subscribers |
eputsato
Replies: 37
Views: 21531
|
Forum: General IBM MQ Support Posted: Thu Apr 16, 2009 2:31 am Subject: Slow Subscribers |
| Ah, you meant to add the other topic? And to publish there only one of 10 messages? |
| Topic: Slow Subscribers |
eputsato
Replies: 37
Views: 21531
|
Forum: General IBM MQ Support Posted: Thu Apr 16, 2009 2:16 am Subject: Slow Subscribers |
So......
You currently have a topic where all messages currently get published to and all your subscribers get their feed from.
In your flow you could create another publish node using the same ... |
| Topic: Slow Subscribers |
eputsato
Replies: 37
Views: 21531
|
Forum: General IBM MQ Support Posted: Thu Apr 16, 2009 2:00 am Subject: Slow Subscribers |
The more you reject these solutions, the more you work yourself into a corner where nothing sensible can be done.
and heres my latest wacky suggestion....
Create a new subscription point on th ... |
| Topic: Slow Subscribers |
eputsato
Replies: 37
Views: 21531
|
Forum: General IBM MQ Support Posted: Thu Apr 16, 2009 1:49 am Subject: Slow Subscribers |
My idea is VERY simple:
1)I need the client to have the latest price at every moment even if he's slow. Which can be thought of as what he sees the next second the publisher stops the feed
2)Ret ... |
| Topic: Slow Subscribers |
eputsato
Replies: 37
Views: 21531
|
Forum: General IBM MQ Support Posted: Thu Apr 16, 2009 1:45 am Subject: Slow Subscribers |
MQ based pub/sub does not work the way you would like it to.
I don't believe that *any* pub/sub works the way you want it to.
The closest way that I know of that you can get the behavior you w ... |
| Topic: Slow Subscribers |
eputsato
Replies: 37
Views: 21531
|
Forum: General IBM MQ Support Posted: Thu Apr 16, 2009 1:33 am Subject: Slow Subscribers |
No, you won't get ALL retained messages. Retained publications only keeps the LAST one. As I said earlier, the difference between a retained publication and an unretained publication is what happe ... |
| Topic: Slow Subscribers |
eputsato
Replies: 37
Views: 21531
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Forum: General IBM MQ Support Posted: Thu Apr 16, 2009 1:26 am Subject: Slow Subscribers |
Does it take ages for the subscriber to READ 100 messages pending, or does it take ages for the subscriber to PROCESS 100 messages pending.
MQGET operations tend to be very fast. Doing anything ... |
| Topic: Slow Subscribers |
eputsato
Replies: 37
Views: 21531
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Forum: General IBM MQ Support Posted: Thu Apr 16, 2009 1:21 am Subject: Slow Subscribers |
4) EVERY TIME that they are ready to get a subscription, they should REOPEN the subscription and then CLOSE IT ENTIRELY after ONE receive.
In this manner, you will meet your requirement.
Could ... |
| Topic: Slow Subscribers |
eputsato
Replies: 37
Views: 21531
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Forum: General IBM MQ Support Posted: Thu Apr 16, 2009 1:18 am Subject: Slow Subscribers |
One possible solution (which I've not tested or really worked through in my head) is for the subscribing app to read it's subscription queue until it's empty or until the put time of the message i ... |
| Topic: Slow Subscribers |
eputsato
Replies: 37
Views: 21531
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Forum: General IBM MQ Support Posted: Thu Apr 16, 2009 12:48 am Subject: Slow Subscribers |
To reiterate the scenario if you enable expiry, here's what will happen.
You publish message A, B, and C.
A slow subscriber reads A and starts to process.
Time passes.
You publish message ... |
| Topic: Slow Subscribers |
eputsato
Replies: 37
Views: 21531
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Forum: General IBM MQ Support Posted: Thu Apr 16, 2009 12:45 am Subject: Slow Subscribers |
Follow this scenario- you have 2 local queues ql1 and ql2 at subscriber's end. The end site application will interact with the ql2 only. ql1 is responsible to receive messages from publisher.
May b ... |
| Topic: Slow Subscribers |
eputsato
Replies: 37
Views: 21531
|
Forum: General IBM MQ Support Posted: Wed Apr 15, 2009 9:28 pm Subject: Slow Subscribers |
To reiterate the scenario if you enable expiry, here's what will happen.
You publish message A, B, and C.
A slow subscriber reads A and starts to process.
Time passes.
You publish message ... |
| Topic: Slow Subscribers |
eputsato
Replies: 37
Views: 21531
|
Forum: General IBM MQ Support Posted: Wed Apr 15, 2009 9:25 pm Subject: Slow Subscribers |
You have been suggested to follow the path of message expiration. What have you done there? 
And I wrote above to mqjeff
"
Expiry by the way is based on time, but in my case it sh ... |
| Topic: Slow Subscribers |
eputsato
Replies: 37
Views: 21531
|
Forum: General IBM MQ Support Posted: Wed Apr 15, 2009 7:07 am Subject: Slow Subscribers |
Today I tried to limit the model queue size to 0 (no queue at all), however the system didn't let me do this.
So I still hope to receive any helpful suggestions from MQ guys. Thank you. |
