Re: polymix3.pg file configuration for number of polysrv and polyclt

On Wed, 2006-10-18 at 01:30 +0530, Jegadeesh wrote:

> We have 3 polyclients and 2 polyservers . All machines are same
> hardware configuration. We are using polymix-3.pg workload file.
> Should the configuration of polymix-3.pg file be same in all 5
> machines or we need some changes in polyservers?

PolyMix rules prohibit asymmetric configurations, and the standard
workloads are written with the assumptions that the number of client and
servers is the same.

If you do not care about PolyMix rules, then just modify the workloads
to start robots and servers on the appropriate IP addresses/aliases.
Arbitrary combinations are supported. Recent Polygraph releases will
even create the right aliases for you.

Detailed information about Polygraph addressing schemes can be found at
http://www.web-polygraph.org/docs/userman/address.html

Technically, you can use different workloads on different machines, but
it is almost never necessary and is virtually always a recipe for a
disaster. It is usually best to describe your entire environment in a
single workload file and auto-distribute that file to all machines
before the test. Polygraph agents on each host will ignore portions that
are not relevant to them.

Standard workloads will try to compute the correct load levels based on
the number of robot addresses, but you should check that the offered
load you are getting matches your expectations.

HTH,

Alex.
Received on Wed Oct 18 10:41:49 2006