How can i graceful restart a program ? #624
Description
i have a program that need zero-downtime restarts which mean without dropping any connections.
when this program receive signal USR1,it will fork&exec a child process handle the new conntion and when the parent finish all the previous conntion it will exit.i want supervisor supervisor the child process.
what should i do to achieve my purpose? how supervisor restart a program ,send a TERM signal to stop and then start?
my english is poor , i hope you can understand what i mean,thanks ..