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From Flavio Cysne <>
Subject Re: Load testing a Load Balanced web application
Date Tue, 04 Sep 2012 11:40:47 GMT
Some tips on my experience with testing a load balanced web

- Use as many JMeter slave instances as you can, each one in a different
virtual machine (distinct IPs). This can help your load balance
software/hardware to distribute the load more evenly.
- Do not expect the load balancer to do an exact distribution. This may
vary a lot.
- Test all load balancing strategies available, accordingly to your web
application/site requirements.
- Monitoring all machines (JMeter master and slaves, load balancer, target
environment, etc) with a standarized tool will help you to compare/analyze
- If possible, try to warm-up* your target servers** before load testing
them. A load test just after a fresh restart can give you false
- Depending on what load balancing strategy you use, you'll have to reset
the load balancer to drop the, let's say, IP route-cache

* hold an average load during several minutes for each application server
** target the load to a specific server IP

Hope it helps.
Flávio Cysne

2012/9/4 Divya <>

> Hello Users,
> I am creating a Test Plan in JMeter to load test a web application and want
> to ensure that the load script will dispatch the requests to all the web
> servers behind the Load Balancer, such that all the web servers are
> utilized in processing the requests.
> Is this achievable with JMeter? How?
> Thanks,
> D

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