def spawn_runner(self):
"""Run the WSGI runner in a child process."""
# TODO sooo if the process dies, it should restart, /but/ it should
# avoid an awful restart loop. **AND** it should log the failure
# somewhere and the 404 should change to match.
if self.runner is None:
self.runner = GunicornProcessProtocol(self, self.path, reactor)
self.runner.spawn()
def spawn_runner(self):
"""Run the WSGI runner in a child process."""
# TODO sooo if the process dies, it should restart, /but/ it should
# avoid an awful restart loop. **AND** it should log the failure
# somewhere and the 404 should change to match.
if self.runner is None:
self.runner = GunicornProcessProtocol(self, self.path, reactor)
self.runner.spawn()
class MamayoChildApplication(object):
# Number of seconds in each histogram bit
HISTOGRAM_BUCKET_SIZE = 10
def __init__(self, path, name, mount_url='/', log_path=None):
self.path = path
self.name = name
self.mount_url = mount_url
self.log_path = log_path
self.runner = None
self.runner_port = None
# Stat tracking
self.requests_finished = 0
self.request_histogram = defaultdict(int)
def spawn_runner(self):
"""Run the WSGI runner in a child process."""
# TODO sooo if the process dies, it should restart, /but/ it should
# avoid an awful restart loop. **AND** it should log the failure
# somewhere and the 404 should change to match.
if self.runner is None:
self.runner = GunicornProcessProtocol(self, self.path, reactor)
self.runner.spawn()
def respawn_runner(self):
if self.runner is None:
self.spawn_runner()
else:
self.runner.respawn()
def as_resource(self):
# TODO there's a delay before gunicorn actually finishes starting; Do
# Something in the meantime?
if self.runner is not None and self.runner.failure_count > 0:
return _app_failing
elif self.runner_port is None:
return _app_down
else:
self.log_request()
return ReverseProxyResource('localhost', self.runner_port,
self.mount_url)
def round_time(self, dt):
"""Round a time to the nearest histogram point."""
return dt.replace(microsecond=0,
second=dt.second -
dt.second % self.HISTOGRAM_BUCKET_SIZE)
def log_request(self):
"""Remember that a request happened, like, right now."""
# TODO candidate for breaking out into a (more persistent) stats object
# once we know what all this is going to do
self.requests_finished += 1
now = self.round_time(datetime.utcnow())
self.request_histogram[now] += 1
def destroy(self):
"""Kill me off!"""
# TODO should this wait X time for the child to perhaps finish handling
# its requests?
if self.runner is not None:
self.runner.destroy()
self.runner_port = None
@property
def running(self):
return self.runner_port is not None
@property
def failing(self):
return self.runner is not None and self.runner.failure_count > 0
@property
def failed(self):
return self.runner is not None and self.runner.failure_throttled
class MamayoChildApplication(object):
# Number of seconds in each histogram bit
HISTOGRAM_BUCKET_SIZE = 10
def __init__(self, path, name, mount_url='/', log_path=None):
self.path = path
self.name = name
self.mount_url = mount_url
self.log_path = log_path
self.runner = None
self.runner_port = None
# Stat tracking
self.requests_finished = 0
self.request_histogram = defaultdict(int)
def spawn_runner(self):
"""Run the WSGI runner in a child process."""
# TODO sooo if the process dies, it should restart, /but/ it should
# avoid an awful restart loop. **AND** it should log the failure
# somewhere and the 404 should change to match.
if self.runner is None:
self.runner = GunicornProcessProtocol(self, self.path, reactor)
self.runner.spawn()
def respawn_runner(self):
if self.runner is None:
self.spawn_runner()
else:
self.runner.respawn()
def as_resource(self):
# TODO there's a delay before gunicorn actually finishes starting; Do
# Something in the meantime?
if self.runner is not None and self.runner.failure_count > 0:
return _app_failing
elif self.runner_port is None:
return _app_down
else:
self.log_request()
return ReverseProxyResource('localhost', self.runner_port, self.mount_url)
def round_time(self, dt):
"""Round a time to the nearest histogram point."""
return dt.replace(
microsecond=0,
second=dt.second - dt.second % self.HISTOGRAM_BUCKET_SIZE)
def log_request(self):
"""Remember that a request happened, like, right now."""
# TODO candidate for breaking out into a (more persistent) stats object
# once we know what all this is going to do
self.requests_finished += 1
now = self.round_time(datetime.utcnow())
self.request_histogram[now] += 1
def destroy(self):
"""Kill me off!"""
# TODO should this wait X time for the child to perhaps finish handling
# its requests?
if self.runner is not None:
self.runner.destroy()
self.runner_port = None
@property
def running(self):
return self.runner_port is not None
@property
def failing(self):
return self.runner is not None and self.runner.failure_count > 0
@property
def failed(self):
return self.runner is not None and self.runner.failure_throttled
