Testing / Apache JMeter Interview questions
What is a JMeter Property?
A JMeter property is a configuration value, typically set via a properties file (like jmeter.properties or user.properties) or passed on the command line, that controls JMeter's own behavior or supplies values a test plan can read.
Properties passed on the command line with -J (like -Jthreads=50) can be read inside a test plan using the __P() function, which is the standard way to make a test plan's configuration - thread count, target host, and so on - overridable from outside the .jmx file itself, without editing it.
This is distinct from a JMeter variable, which is scoped to a single thread and typically set or changed during test execution (for example, by an extractor); properties are set once, from outside the running test, and read the same way across threads.
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