Hello!

I'm trying to use app_python module to perform periodic actions.

This is a simple python code

def _update():
    while True:
        _action()
        time.sleep(60)

class noop_handler:
    def child_init(self, rank):
        return 0

    def ksr_request_route(self, msg):
        return 1

def mod_init():
    # signal.signal(signal.SIGTERM, signal.default_int_handler)
    proc = multiprocessing.Process(target=_update)
    # proc.daemon = True
    proc.start()
    ksr.notice('Forked process {} to update\n'.format(proc.pid))
    return noop_handler()

After killing kamailio processes with SIGTERM signal (killall kamailio) I see zombie process.

And if I try to process the signal in daemon mode (see the comments in the snippet above), I get critical errors in the logs and still see processes:

 0(37001) NOTICE: <core> [core/kemi.c:124]: sr_kemi_core_notice(): Forked process 37002 to update
 1(37003) ERROR: <core> [core/udp_server.c:464]: udp_rcv_loop(): recvfrom:[4] Interrupted system call
Process Process-1:
Traceback (most recent call last):
  File "/usr/lib64/python2.7/multiprocessing/process.py", line 258, in _bootstrap
    self.run()
  File "/usr/lib64/python2.7/multiprocessing/process.py", line 114, in run
    self._target(*self._args, **self._kwargs)
  File "/tmp/script.py", line 155, in _update
    time.sleep(period)
KeyboardInterrupt
 0(37001) ALERT: <core> [main.c:774]: handle_sigs(): child process 37002 exited normally, status=1
 0(37001) INFO: <core> [main.c:802]: handle_sigs(): terminating due to SIGCHLD
 1(37003) ERROR: <core> [core/udp_server.c:464]: udp_rcv_loop(): recvfrom:[4] Interrupted system call
 8(37014) CRITICAL: <core> [core/pass_fd.c:277]: receive_fd(): EOF on 4
 1(37003) ERROR: <core> [core/udp_server.c:464]: udp_rcv_loop(): recvfrom:[4] Interrupted system call

So, how I can kill child process by SIGTERM signal?