What are the different types of processors available in JMeter?
In JMeter, there are two types of processors: the Pre-Processor and the Post-Processor.
Pre-Processors run before the main sampler and have the ability to change the scope of the sampler. PreProcessors are JMeter elements that are used to perform actions prior to the execution of sampler requests in a test scenario. PreProcessors can be used for a variety of performance testing tasks, such as retrieving data from a database, setting a timeout between sampler operations, or generating test data.
Post Processors run after the main sampler and apply to all samplers in the same Test Plan scope. They're useful for extracting fields from server responses and storing them in variables. The Post Processors are test plan elements that are used to do certain activities after a sampler request has been processed. These post processors are typically used to extract specific data from a sampling request's response, for example, we can extract the value of session variables from an HTTP request and send the value of the session variable to subsequent requests.
