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| Multiple instance of message flow |
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| ethirajesh |
 Posted: Thu Jan 27, 2011 5:03 am Post subject: Multiple instance of message flow |
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Apprentice
Joined: 04 Oct 2010
Posts: 46
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Hi Friends,
My message flow is handling lots of buisness logic in it, and also there will 1700 messages coming to it at a time. I am thinking of having multiple instance of this message flow as a first step(I have reviewed the ESQL and feel no more tweaks possible in it).
Lokking for your answers for below three questions
1) Under the property of .cmf file, I am going to increase Additional Instance count and deploy in test environment. Does this suffice?
2) Per my understanding, if I increase the instance it will consume more memory, do I need to do some changes elsewhere to accomodate this?
3) How many instance would be a optimum count? |
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| fatherjack |
| Posted: Thu Jan 27, 2011 5:10 am Post subject: Re: Multiple instance of message flow |
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Knight
Joined: 14 Apr 2010
Posts: 522
Location: Craggy Island
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| ethirajesh wrote: |
| 1) Under the property of .cmf file, I am going to increase Additional Instance count and deploy in test environment. Does this suffice? |
Depends on your performance / throughput / response time requirements.
| ethirajesh wrote: |
| 2) Per my understanding, if I increase the instance it will consume more memory, do I need to do some changes elsewhere to accomodate this? |
Depends on how much memory your box has got.
| ethirajesh wrote: |
| 3) How many instance would be a optimum count? |
As many as you need to meet your SLAs.
_________________
Never let the facts get in the way of a good theory. |
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| fatherjack |
| Posted: Thu Jan 27, 2011 5:15 am Post subject: |
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Knight
Joined: 14 Apr 2010
Posts: 522
Location: Craggy Island
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Take a look at support pac IP04
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Never let the facts get in the way of a good theory. |
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| zpat |
| Posted: Thu Jan 27, 2011 5:15 am Post subject: |
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Jedi Council
Joined: 19 May 2001
Posts: 5866
Location: UK
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Tune your logic first. Focus on any iterative logic and read up on WMB performance hints and tips.
It would be unusual to have to run more than one flow at once to overcome a shortage of CPU power.
Why is the flow too slow - what is the limiting factor? |
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| Vitor |
| Posted: Thu Jan 27, 2011 5:35 am Post subject: Re: Multiple instance of message flow |
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Grand High Poobah
Joined: 11 Nov 2005
Posts: 26093
Location: Texas, USA
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| ethirajesh wrote: |
| 1) Under the property of .cmf file, I am going to increase Additional Instance count and deploy in test environment. Does this suffice? |
This will increase the number of instances of the flow
| ethirajesh wrote: |
| 2) Per my understanding, if I increase the instance it will consume more memory, do I need to do some changes elsewhere to accomodate this? |
You might need to install some more memory chips in the server. Depending on your environment, you might need to increase some OS parameters. Speak to the box admins.
| ethirajesh wrote: |
| 3) How many instance would be a optimum count? |
Define "a time" in which these 1700 messages will arrive (a second, a minute, an hour, a day). Determine how long 1 message flow takes to process 1 message. Determine how long the SLA for a given message. Using these values, calculate how many instances you need to meet this SLA.
This will be your optimium number, or the first approxiamation of it. There's no such thing as the optimium number.
Then you test it, see if the box will support that number of threads, see if you'd be better off using a cluster to split the load, see if you can't actually have multiple threads because the database has table locks, etc, etc, etc, etc, ...
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Honesty is the best policy.
Insanity is the best defence. |
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