Fix for gracefully_kill_them_all() which broke setups using fifo-based master graceful reload - #2743
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…d master graceful reload Instead of doing a blocking waitpid call, use WNOHANG calls to avoid breaking existing child process signal handling which was part of the master fork/exit cleanup that allowed FIFO-based zero downtime reloads to happen. This will also allow the fix to continue on as this code will block until all the workers have exited.
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Instead of doing a blocking waitpid call, use WNOHANG calls to avoid breaking existing child process signal handling which was part of the master fork/exit cleanup that allowed FIFO-based zero downtime reloads to happen. This will also allow the fix to continue on as this code will block until all the workers have exited.