def kill_children(self, *args):
"""Kills the entire process group."""
LOG.error(_LE('SIGTERM received'))
signal.signal(signal.SIGTERM, signal.SIG_IGN)
signal.signal(signal.SIGINT, signal.SIG_IGN)
self.running = False
os.killpg(0, signal.SIGTERM)
def stop(self):
try:
self.rpcserver.stop()
self.rpcserver.wait()
except Exception:
pass
try:
self.manager.cleanup_host()
except Exception:
LOG.exception(_LE("Service error occurred during cleanup_host"))
super(Service, self).stop()
def _verify_and_respawn_children(self, pid, status):
if len(self.stale_children) == 0:
LOG.debug('No stale children')
if os.WIFEXITED(status) and os.WEXITSTATUS(status) != 0:
LOG.error(_LE('Not respawning child %d, cannot '
'recover from termination'), pid)
if not self.children and not self.stale_children:
LOG.info(_LI('All workers have terminated. Exiting'))
self.running = False
else:
if len(self.children) < self.conf.workers:
self.run_child()
def hup(self, *args):
"""Reloads configuration files with zero down time."""
LOG.error(_LE('SIGHUP received'))
signal.signal(signal.SIGHUP, signal.SIG_IGN)
raise exception.SIGHUPInterrupt