{"id":246,"date":"2013-08-13T13:50:53","date_gmt":"2013-08-13T17:50:53","guid":{"rendered":"https:\/\/www.redline13.com\/blog\/?p=246"},"modified":"2022-01-03T19:59:33","modified_gmt":"2022-01-04T00:59:33","slug":"load-testing-red-hat-openshift","status":"publish","type":"post","link":"https:\/\/www.redline13.com\/blog\/2013\/08\/load-testing-red-hat-openshift\/","title":{"rendered":"Load Testing Red Hat OpenShift"},"content":{"rendered":"

\"Red<\/a>We have recently partnered with Red Hat to supply (almost) free load testing for applications built and deployed on the OpenShift PaaS.<\/p>\n

In our tests, we were able to demonstrate the automated scalability of the OpenShift PaaS and the power of the RedLine load testing tool to help determine sizing requirements. This is a powerful and simple combination for application developers since they can quickly emulate 0 – 50,000+ users hitting their application over a period of 10 minutes and scale their OpenShift environment easily with a few option selections and for less than $2.00.<\/p>\n

For our application, we chose one of the Quickstart applications<\/a> – Cakestart<\/a>, which is a Bootstrap based framework to get going quickly. Our test was simple – we just pinged the home page we put up for our application –\u00a0http:\/\/cakestrap-redline.rhcloud.com\/<\/a>. We also deployed a sample WordPress application with just a few clicks, although that was not scalable so we did not spend a lot of time testing other than to see it handled 50 requests in 10 seconds with sub-second response times.<\/p>\n

OpenShift provides 3 free “Gears”, which are virtual servers with a certain amount of CPU and memory capacity. We were upgraded to 16 gears for our testing purposes (thanks Red Hat!).<\/p>\n

Our test run below shows our app starting out running on a single gear – you can see over a couple of minutes of time the response time goes down. OpenShift automatically recognized that we needed more power and upgrade us to 3 gears to process the ~5 requests per second on this app.<\/p>\n

\"OpenShift<\/a><\/p>\n

 <\/p>\n

Here is the OpenShift Console during the middle of that test showing how the gears were being increased:<\/p>\n

\"RedLine<\/a><\/p>\n

 <\/p>\n

OpenShift also has the capability to set a minimal number of gears. This way you can deploy your application so it can handle your expected load with a fast response time.<\/p>\n

\"OpenShift<\/a><\/p>\n

 <\/p>\n

The test setup is simple, yet powerful. RedLine gives you the options of:<\/p>\n