Jmeter：使用 While Controller 进行失败的请求重试，线程组循环计数不起作用

Question

I added a While Controller and try to send this request multiple times in case if it doesn't work the first time or simply just trying to implement retry logic.

Thread Group configurations are:

1. Threads (Users) - 1
2. Loop - 10

Issue: As per thread group config, it should run ( while controller * 10 ) but it only runs 1 time.

In my Bean PostProcessor:

vars.remove("response_code");
vars.put("response_code",prev.getResponseCode());

In WhileController:

${__jexl3(${response_code} != 200 && ${retries} < 3,)}

Any help would be appreciated!

Answer 1

On 2nd iteration of your Thread Group your ${response_code} variable becomes 200 therefore it will not enter the While Loop.

The solution is to reset both ${response_code} and ${retries} variables to 0

1. Add JSR223 Sampler to be the first Sampler in your Thread Group

2. Put the following code into "Script" area:

    SampleResult.setIgnore() vars.put('response_code', '0') vars.put('retries', '0')

Also be aware that starting from JMeter 3.1 you shouldn't be using Beanshell so consider migrating from the Beanshell PostProcessor to the JSR223 PostProcessor . More information: Apache Groovy - Why and How You Should Use It