def _connect(self):
err = None
for res in socket.getaddrinfo(self.host, self.port, 0,
socket.SOCK_STREAM):
family, socktype, proto, canonname, socket_address = res
sock = None
try:
sock = socket.socket(family, socktype, proto)
sock.setsockopt(socket.IPPROTO_TCP, socket.TCP_NODELAY, 1)
if self.socket_keepalive:
sock.setsockopt(
socket.SOL_SOCKET, socket.SO_KEEPALIVE, 1)
for k, v in self.socket_keepalive_options.iteritems():
sock.setsockopt(socket.SOL_TCP, k, v)
sock.settimeout(self.socket_connect_timeout)
sock.connect(socket_address)
sock.settimeout(self.socket_timeout)
return sock
except socket.error as _:
err = _
if sock is not None:
sock.close()
if err is not None:
raise err # pylint: disable=raising-bad-type
raise socket.error("socket.getaddrinfo returned empty list")
def check(self):
result = False
sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
try:
sock.connect(self.addr)
self._communicate(sock)
result = True
finally:
if sock:
sock.close()
return result
def check(self):
result = False
sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
try:
sock.connect(self.addr)
self._communicate(sock)
result = True
finally:
if sock:
try:
sock.shutdown(socket.SHUT_RDWR)
sock.close()
except socket.error as err:
self.logger.warn('Close error: %s', err)
return result
def _check(self):
sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
try:
sock.connect(self.addr)
self._communicate(sock)
self.last_check_success = True
except Exception as err:
# Avoid spamming the logs
if self.last_check_success:
self.logger.warn('ERROR performing %s check (%s:%d): %s',
self.checker_type, self.host, self.port, err)
self.last_check_success = False
finally:
if sock:
try:
sock.shutdown(socket.SHUT_RDWR)
sock.close()
except socket.error as err:
pass
if not self.last_check_success:
self.logger.warn('%s check failed', self.name)
return self.last_check_success