| Author |
Message
|
| selfown |
 Posted: Wed Dec 20, 2006 3:37 am Post subject: Number of Execution groups per CPU |
 |
|
Apprentice
Joined: 07 Jan 2005
Posts: 39
|
Hi All,
Is there any limitation on having number of execution groups in a CPU?
Thanks
Selfown |
|
| Back to top |
|
 |
| Vitor |
| Posted: Wed Dec 20, 2006 3:42 am Post subject: |
|
|
Grand High Poobah
Joined: 11 Nov 2005
Posts: 26093
Location: Texas, USA
|
Which version?
AFAIK you can't schedule an execution group to a given CPU. And if you could, wouldn't the limit depend more on the number of flows within the group(s)? 
_________________
Honesty is the best policy.
Insanity is the best defence. |
|
| Back to top |
|
|
| selfown |
| Posted: Wed Dec 20, 2006 4:12 am Post subject: |
|
|
Apprentice
Joined: 07 Jan 2005
Posts: 39
|
Version 6 Fixpack2.
Yes you are right in pointing that the limit depends on the number of flows in the exec group.
We are in a situation where in we are not sure to have different exec groups for different services. Each exec group is expected to have not more than 10 flows in them.
So I wanted to know whether there is any constraint on the number of exec groups. Broker is running on Solaris, DUAL CPU.
Thanks |
|
| Back to top |
|
|
| JosephGramig |
| Posted: Wed Dec 20, 2006 5:29 am Post subject: |
|
|
Grand Master
Joined: 09 Feb 2006
Posts: 1244
Location: Gold Coast of Florida, USA
|
The number of EGs is OS dependent and affected by your configuration.
Say your OS will only allow 255 processes per ID at one time, then that is your limit. Flow instances in a EG relate to threads, and so the same OS limits about threads apply here.
First, find your OS limitations.
Pragmatically, you need to know when your flows are CPU, memory or IO bound.
_________________
Joseph
Administrator - IBM WebSphere MQ (WMQ) V6.0, IBM WebSphere Message Broker (WMB) V6.1 & V6.0
Solution Designer - WMQ V6.0
Solution Developer - WMB V6.1 & V6.0, WMQ V5.3 |
|
| Back to top |
|
|
| selfown |
| Posted: Wed Dec 20, 2006 6:04 am Post subject: |
|
|
Apprentice
Joined: 07 Jan 2005
Posts: 39
|
| Okay.. If it is just the OS limitation, then it is fine.. Thanks for all your replies. |
|
| Back to top |
|
|
| JosephGramig |
| Posted: Wed Dec 20, 2006 6:32 am Post subject: |
|
|
Grand Master
Joined: 09 Feb 2006
Posts: 1244
Location: Gold Coast of Florida, USA
|
If you search this site on this topic, you will find other threads about this subject. I remember seeing one related to z/OS and a 255 limit due to some feature or other on that platform.
I could have it wrong, it could have been resolved or it may not apply to you in your situation.
_________________
Joseph
Administrator - IBM WebSphere MQ (WMQ) V6.0, IBM WebSphere Message Broker (WMB) V6.1 & V6.0
Solution Designer - WMQ V6.0
Solution Developer - WMB V6.1 & V6.0, WMQ V5.3 |
|
| Back to top |
|
|
| broker_new |
| Posted: Fri Jan 12, 2007 4:25 pm Post subject: |
|
|
Yatiri
Joined: 30 Nov 2006
Posts: 614
Location: Washington DC
|
By Mistakenly I have deleted the default execution group in the Broker.
So again i created the execution group with the same name default.
When iam debugging the flow using RAC there i can see two execution groups with the same name running under with different process ids.
What should i do to eliminate the other process id. |
|
| Back to top |
|
|
| pathipati |
| Posted: Fri Jan 12, 2007 5:48 pm Post subject: |
|
|
Master
Joined: 03 Mar 2006
Posts: 296
|
search for "phantom execution groups" in this forum.
I allways suggest creating execution group with a new name every time and for deleting try using Config Manager Proxy API and/or mqsideleteexecutiongroup command.. |
|
| Back to top |
|
|
| sarat |
| Posted: Sun Jan 14, 2007 10:06 pm Post subject: |
|
|
Centurion
Joined: 29 Jun 2005
Posts: 136
Location: India
|
Hi broker_new,
| Quote: |
| By Mistakenly I have deleted the default execution group in the Broker. |
But it remainds in the process.If you want to check just click on the FlowEngine in the visual debugger. You will find two processes with two different id's the same 'default' !!!!
You told that
| Quote: |
| So again i created the execution group with the same name default. |
Better to create the EG with another name. So that u'll not face any issues.
_________________
With Regards,
Sarat. |
|
| Back to top |
|
|
|
|
