Load Testing Blog
Showing posts tagged “load engine”
Keeping your HOSTS files in sync with Load Tester 4.1
Load Tester 4.1 has a number of exciting new features, but in this post, let’s discuss one of the less obvious features: a hosts file which is automatically synchronized with all your Load Engines.
Consider how often this happens: the development environment is mirrored from your production environment, and then updated to an internal version of the application, ready for testing. Since the development environment is otherwise a mirror of the production system, it is configured with the same virtual hostnames as your production environment, and / or it may share the same SSL certificates which identify it with the hostname … Continue reading »
How User Ramping Works – Part Two
In part 1 of How User Ramping Works, we discussed how to set up a user ramp configuration for a test. When you’ve done that, recorded and replayed your test cases to perfection, loaded your datasets, configured your load engines, and set up your server agents, what actually happens when you push the big green button?
The first thing Load Tester does is go through a setup sequence that configures the load engines for the coming test. This can take a while, especially if you’ve configured large datasets or large numbers of files to be … Continue reading »
Load Testing from the Cloud
Over the last few weeks I’ve been tinkering with Amazon’s EC2 service, setting up a Load Tester load engine AMI and running tests from cloud instances. Our conclusion is that cloud engines can be useful, but there are some things you need to be careful about because they can cause subtle problems or even invalidate your test.
Getting Started
You’ll need to follow the Amazon instructions for getting set up on the service, as laid out in the Getting Started Guide. This is a somewhat non-trivial process that involves generating an X.509 certificate, and an SSH … Continue reading »
