def __init__(self, conf, logger):
self.logger = logger
self.timeout = float_value(conf.get('timeout'), 1.0)
self.rise = conf['rise']
self.fall = conf['fall']
self.results = RingBuffer(max([self.rise, self.fall]))
self.name = conf.get('name')
self.last_result = None
class BaseChecker(object):
"""Base class for all service checkers"""
def __init__(self, agent, checker_conf, logger):
self.agent = agent
self.checker_conf = checker_conf
self.logger = logger
self.timeout = float_value(checker_conf.get('timeout'), 5.0)
self.rise = checker_conf['rise']
self.fall = checker_conf['fall']
self.results = RingBuffer(max([self.rise, self.fall]))
self.name = checker_conf.get('name')
self.srv_type = agent.service['type']
self.last_result = None
self.configure()
def configure(self):
"""Configuration handle"""
pass
def service_status(self):
"""Do the check and set `last_result` accordingly"""
result = False
try:
with Timeout(self.timeout):
result = self.check()
except Timeout as e:
self.logger.warn('check timed out')
except Exception as e:
self.logger.warn('check failed: %s', str(e.message))
if self.last_result is None:
self.last_result = result
for _i in range(0, self.results.size):
self.results.append(result)
self.logger.info('%s first check returned %s', self.name, result)
self.results.append(result)
if not any(self.results[-self.fall:]):
if self.last_result:
self.logger.info(
'%s status is now down after %d failures', self.name,
self.fall)
self.last_result = False
if all(self.results[-self.rise:]):
if not self.last_result:
self.logger.info(
'%s status is now up after %d successes', self.name,
self.rise)
self.last_result = True
return self.last_result
def check(self):
"""Actually do the service check"""
return False
def __init__(self, agent, checker_conf, logger):
self.agent = agent
self.checker_conf = checker_conf
self.logger = logger
self.timeout = float_value(checker_conf.get('timeout'), 1.0)
self.rise = checker_conf['rise']
self.fall = checker_conf['fall']
self.results = RingBuffer(max([self.rise, self.fall]))
self.name = checker_conf.get('name')
self.last_result = None
self.configure()
def __init__(self, conf, logger):
self.logger = logger
self.timeout = float_value(conf.get('timeout'), 1.0)
self.rise = conf['rise']
self.fall = conf['fall']
self.results = RingBuffer(max([self.rise, self.fall]))
self.name = conf.get('name')
self.last_result = None
class BaseChecker(object):
"""Base class for all service checkers"""
def __init__(self, conf, logger):
self.logger = logger
self.timeout = float_value(conf.get('timeout'), 1.0)
self.rise = conf['rise']
self.fall = conf['fall']
self.results = RingBuffer(max([self.rise, self.fall]))
self.name = conf.get('name')
self.last_result = None
def service_status(self):
"""Do the check and set `last_result` accordingly"""
result = False
try:
with Timeout(self.timeout):
result = self.check()
except (Exception, Timeout):
pass
if self.last_result is None:
self.last_result = result
for _i in range(0, self.results.size):
self.results.append(result)
self.logger.info('%s first check returned %s', self.name, result)
self.results.append(result)
if not any(self.results[-self.fall:]):
if self.last_result:
self.logger.info(
'%s status is now down after %d failures', self.name,
self.fall)
self.last_result = False
if all(self.results[-self.rise:]):
if not self.last_result:
self.logger.info(
'%s status is now up after %d successes', self.name,
self.rise)
self.last_result = True
return self.last_result
def check(self):
"""Actually do the service check"""
return False
class BaseChecker(object):
"""Base class for all service checkers"""
def __init__(self, conf, logger):
self.logger = logger
self.timeout = float_value(conf.get('timeout'), 1.0)
self.rise = conf['rise']
self.fall = conf['fall']
self.results = RingBuffer(max([self.rise, self.fall]))
self.name = conf.get('name')
self.last_result = None
def service_status(self):
"""Do the check and set `last_result` accordingly"""
result = False
try:
with Timeout(self.timeout):
result = self.check()
except (Exception, Timeout):
pass
if self.last_result is None:
self.last_result = result
for _i in range(0, self.results.size):
self.results.append(result)
self.logger.info('%s first check returned %s', self.name, result)
self.results.append(result)
if not any(self.results[-self.fall:]):
if self.last_result:
self.logger.info('%s status is now down after %d failures',
self.name, self.fall)
self.last_result = False
if all(self.results[-self.rise:]):
if not self.last_result:
self.logger.info('%s status is now up after %d successes',
self.name, self.rise)
self.last_result = True
return self.last_result
def check(self):
"""Actually do the service check"""
return False
def __init__(self, agent, checker_conf, logger):
self.agent = agent
self.checker_conf = checker_conf
self.logger = logger
self.timeout = float_value(checker_conf.get('timeout'), 5.0)
self.rise = checker_conf['rise']
self.fall = checker_conf['fall']
self.results = RingBuffer(max([self.rise, self.fall]))
self.name = checker_conf.get('name')
self.last_result = None
self.configure()
def __init__(self, agent, checker_conf, logger):
self.agent = agent
self.checker_conf = checker_conf
self.logger = logger
self.timeout = float_value(checker_conf.get('timeout'), 5.0)
self.rise = checker_conf['rise']
self.fall = checker_conf['fall']
self.results = RingBuffer(max([self.rise, self.fall]))
self.name = checker_conf.get('name')
self.srv_type = agent.service['type']
self.last_result = None
for k in ('host', 'port'):
if k not in self.checker_conf:
raise exc.ConfigurationException(
'Missing field "%s" in configuration' % k)
self.host = self.checker_conf['host']
self.port = self.checker_conf['port']
self.name = '%s|%s|%s|%s' % \
(self.srv_type, self.checker_type, self.host, self.port)
self.last_check_success = True
self._configure()
