def set_proctitle(self):
"""
Set the proctitle of this worker for readability purpose
:return: None
"""
setproctitle("alignak-%s worker" % self.loaded_into)
def set_proctitle(self):
"""
Set the proctitle of this worker for readability purpose
:return: None
"""
setproctitle("alignak-%s worker" % self.loaded_into)
def set_proctitle(self, name):
"""Wrapper for setproctitle method
:param name: module name
:type name: str
:return: None
"""
setproctitle("alignak-%s module: %s" % (self.loaded_into, name))
def set_proctitle(self, name):
"""Wrapper for setproctitle method
:param name: module name
:type name: str
:return: None
"""
setproctitle("alignak-%s module: %s" % (self.loaded_into, name))
def do_work(self, actions_queue, returns_queue, control_queue=None): # pragma: no cover
"""Main function of the worker.
* Get checks
* Launch new checks
* Manage finished checks
:param actions_queue: Global Queue Master->Slave
:type actions_queue: Queue.Queue
:param returns_queue: queue managed by manager
:type returns_queue: Queue.Queue
:return: None
"""
# restore default signal handler for the workers:
# signal.signal(signal.SIGTERM, signal.SIG_DFL)
self.interrupted = False
self.set_exit_handler()
setproctitle("alignak-%s worker %s" % (self.loaded_into, self._id))
timeout = 1.0
self.checks = []
self.t_each_loop = time.time()
while True:
begin = time.time()
logger.debug("--- loop begin: %s", begin)
# If we are dying (big problem!) we do not
# take new jobs, we just finished the current one
if not self.i_am_dying:
# REF: doc/alignak-action-queues.png (3)
self.get_new_checks(actions_queue, returns_queue)
# REF: doc/alignak-action-queues.png (4)
self.launch_new_checks()
# REF: doc/alignak-action-queues.png (5)
self.manage_finished_checks(returns_queue)
logger.debug("loop middle, %d checks", len(self.checks))
# Now get order from master, if any...
if control_queue:
try:
control_message = control_queue.get_nowait()
logger.info("[%s] Got a message: %s", self._id, control_message)
if control_message and control_message.get_type() == 'Die':
logger.info("[%s] The master said we must die... :(", self._id)
break
except Full:
logger.warning("Worker control queue is full")
except Empty:
pass
except Exception as exp: # pylint: disable=broad-except
logger.error("Exception when getting master orders: %s. ", str(exp))
# Maybe someone asked us to die, if so, do it :)
if self.interrupted:
logger.info("I die because someone asked ;)")
break
# Look if we are dying, and if we finish all current checks
# if so, we really die, our master poller will launch a new
# worker because we were too weak to manage our job :(
if not self.checks and self.i_am_dying:
logger.warning("I die because I cannot do my job as I should "
"(too many open files?)... forgive me please.")
break
# Manage a possible time change (our avant will be change with the diff)
diff = self.check_for_system_time_change()
begin += diff
logger.debug("loop check timechange: %s", diff)
timeout -= time.time() - begin
if timeout < 0:
timeout = 1.0
else:
time.sleep(0.1)
logger.debug("+++ loop end: timeout = %s, idle: %s, checks: %d, "
"actions (got: %d, launched: %d, finished: %d)",
timeout, self._idletime, len(self.checks),
self.actions_got, self.actions_launched, self.actions_finished)
def set_proctitle(self): # pragma: no cover, not with unit tests
"""Set the proctitle of this worker for readability purpose
:return: None
"""
setproctitle("alignak-%s worker %s" % (self.loaded_into, self._id))
