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MQSeries.net Forum Index » Workflow Engines - IBM MQ Workflow & Business Process Choreographer » No of exe servers?? IF SO UNNECESSARY ONES SIDE EFFECTS

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vinodsasidharan
PostPosted: Tue Apr 29, 2003 12:01 am    Post subject: No of exe servers?? IF SO UNNECESSARY ONES SIDE EFFECTS Reply with quote

Apprentice

Joined: 25 Apr 2003
Posts: 47
Location: Norwich
1)How do i determine how many instances of execution server i need .
2) How do i exactly determine how many do i need for hot pooling .
3)If so what is side effect if i have unnecessary extra instances
4) By having extra instance even though load is balanced any side effects



Can u please guide

following is my set ups . so please guide me to find how many execution server instances i need .currently we have


No of processes : 8000 process instances per day.
NO OF CHECKOUTS: 20000 / DAY


Workflow version is 3.3.0
The hardware configuration of the system where the mq workflow
server is running is as follows :
AIX / RS 6000
Mode:pSeries p680-S85 L2-Cache
Processor:12 RISC Power Processor 600 Mega Hertz
RAMSize :12 GB
Hard Disk Size:3.7 TB
Operating System: AIX 4.3
Software Installed:MQSeries Workflow
Content Manager
MQSeries Server
SecureWay (LDAP)
DB2
Oracle
?????
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amittalekar
PostPosted: Tue Apr 29, 2003 5:34 am    Post subject: Reply with quote

Disciple

Joined: 03 Apr 2002
Posts: 166
Location: VA, USA
have a look at SupportPac WP01:MQSeries Workflow - Performance estimates for solution and capacity assessments. Available on ibm site
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jmac
PostPosted: Tue Apr 29, 2003 5:51 am    Post subject: Re: No of exe servers?? IF SO UNNECESSARY ONES SIDE EFFECTS Reply with quote

Jedi Knight

Joined: 27 Jun 2001
Posts: 3081
Location: EmeriCon, LLC
vinodsasidharan wrote:
1)How do i determine how many instances of execution server i need .
2) How do i exactly determine how many do i need for hot pooling .
3)If so what is side effect if i have unnecessary extra instances
4) By having extra instance even though load is balanced any side effects


1. This is not documented in any of the manuals, but I believe somewhere I saw that 5 is a good number on an AIX box.

2. This is not documented. Experimentation is the only way I am aware of.

3 & 4. Operating system performance degradation.
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clindsey
PostPosted: Tue Apr 29, 2003 6:52 am    Post subject: Reply with quote

Knight

Joined: 12 Jul 2002
Posts: 586
Location: Dallas, Tx
The "rule of thumb" for the number of execution servers is 2 X number of processors on the box. This would at least be a good starting point.

Charlie
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