| Author |
Message
|
| mvs |
 Posted: Thu Nov 29, 2007 5:40 am Post subject: Speed of the message in MQ |
 |
|
Voyager
Joined: 06 Jul 2007
Posts: 85
|
Hi All,
Today we facing some new problem. We have the scenario like this
MainFrames MQ MEssage Broker MQ Front End system
In the depth of the queue 400000 messages
The Main frames runs the job and submits 50000 messages at this time the message process
well without any problem in a very short period.
If the Main Frame sends 300000 messages it takes more time (hours togather) to process all the messages.
I am not sure why this happens. Any Idea????????? |
|
| Back to top |
|
 |
| Vitor |
| Posted: Thu Nov 29, 2007 5:43 am Post subject: |
|
|
Grand High Poobah
Joined: 11 Nov 2005
Posts: 26093
Location: Texas, USA
|
If the system has demonstrated that it can process 400000 messages quickly then there's a specific reason why 300000 are taking so long.
The key thing is to work out where the delay is. I would be surprised if messages were moving slowly but evenly through the entire chain; IMHO it's far more likely something is causing a bottleneck somewhere.
Check to see where the messages are being held up and investigate the cause.
_________________
Honesty is the best policy.
Insanity is the best defence. |
|
| Back to top |
|
|
| Vitor |
| Posted: Thu Nov 29, 2007 5:47 am Post subject: |
|
|
Grand High Poobah
Joined: 11 Nov 2005
Posts: 26093
Location: Texas, USA
|
Or do you mean that 50000 go fast but 300000 take ages? If so, where does the 400000 come in? 
If it is that (50000 fast, 300000 slow) then I'd look for an application writing to a database (WMB Database node) in a bad or badly indexed way for an off-the-cuff guess.
But I stand by my previous general advice - bad throughput in a system, look for the bottleneck.
_________________
Honesty is the best policy.
Insanity is the best defence. |
|
| Back to top |
|
|
| francoisvdm |
| Posted: Thu Nov 29, 2007 11:32 am Post subject: |
|
|
Partisan
Joined: 09 Aug 2001
Posts: 332
|
Persistent or non-persistent messages?
What is the batch size for MQ? So.... is broker also on mainframe? If yes, is there enough space to save all 300000 messages plus logspace?
_________________
If you do not know the answer or you get the urge to answer with "RTFM" or "Search better in this forum", please refrain from doing so, just move on to the next question. Much appreciated.
Francois van der Merwe |
|
| Back to top |
|
|
| mvs |
| Posted: Sat Dec 29, 2007 12:36 pm Post subject: s |
|
|
Voyager
Joined: 06 Jul 2007
Posts: 85
|
Hi All,
My Apologies for the delay.
Yes, the messages are persistent. We have other system such as commission and it process in 4 min's 300000 messages which is persistent. I am not sure why this messages are not processing.
Regards
MVS |
|
| Back to top |
|
|
| fjb_saper |
| Posted: Sat Dec 29, 2007 4:05 pm Post subject: Re: s |
|
|
Grand High Poobah
Joined: 18 Nov 2003
Posts: 20756
Location: LI,NY
|
| mvs wrote: |
Hi All,
My Apologies for the delay.
Yes, the messages are persistent. We have other system such as commission and it process in 4 min's 300000 messages which is persistent. I am not sure why this messages are not processing.
Regards
MVS |
What is the size of the UOW you are processing? Or is the UOW until queue empty? Bigger UOWs require more resources and will slow measurably performance. 
_________________
MQ & Broker admin |
|
| Back to top |
|
|
|
|
