What does it mean when the Gunicorn worker is terminated by signal 9?

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When a Gunicorn worker is terminated by signal 9, also known as SIGKILL, it means that the process was forcefully terminated by the operating system. This is often seen as a last resort measure when a process is unresponsive and cannot be stopped through conventional means. It's important to investigate why the worker was unresponsive and address any underlying issues that may have led to the termination.