def main(heartbeat_stop_callback=None):
global config
parser = OptionParser()
parser.add_option("-v", "--verbose", dest="verbose", action="store_true", help="verbose log output", default=False)
parser.add_option("-e", "--expected-hostname", dest="expected_hostname", action="store",
help="expected hostname of current host. If hostname differs, agent will fail", default=None)
(options, args) = parser.parse_args()
expected_hostname = options.expected_hostname
setup_logging(logger, AmbariConfig.AmbariConfig.getLogFile(), options.verbose)
global is_logger_setup
is_logger_setup = True
setup_logging(alerts_logger, AmbariConfig.AmbariConfig.getAlertsLogFile(), options.verbose)
default_cfg = {'agent': {'prefix': '/home/ambari'}}
config.load(default_cfg)
if (len(sys.argv) > 1) and sys.argv[1] == 'stop':
stop_agent()
if (len(sys.argv) > 2) and sys.argv[1] == 'reset':
reset_agent(sys.argv)
# Check for ambari configuration file.
resolve_ambari_config()
# Add syslog hanlder based on ambari config file
add_syslog_handler(logger)
# Starting data cleanup daemon
data_cleaner = None
if config.has_option('agent', 'data_cleanup_interval') and int(config.get('agent','data_cleanup_interval')) > 0:
data_cleaner = DataCleaner(config)
data_cleaner.start()
perform_prestart_checks(expected_hostname)
# Starting ping port listener
try:
#This acts as a single process machine-wide lock (albeit incomplete, since
# we still need an extra file to track the Agent PID)
ping_port_listener = PingPortListener(config)
except Exception as ex:
err_message = "Failed to start ping port listener of: " + str(ex)
logger.error(err_message)
sys.stderr.write(err_message)
sys.exit(1)
ping_port_listener.start()
update_log_level(config)
server_hostname = hostname.server_hostname(config)
server_url = config.get_api_url()
if not OSCheck.get_os_family() == OSConst.WINSRV_FAMILY:
daemonize()
try:
server_ip = socket.gethostbyname(server_hostname)
logger.info('Connecting to Ambari server at %s (%s)', server_url, server_ip)
except socket.error:
logger.warn("Unable to determine the IP address of the Ambari server '%s'", server_hostname)
# Wait until server is reachable
netutil = NetUtil(heartbeat_stop_callback)
retries, connected = netutil.try_to_connect(server_url, -1, logger)
# Ambari Agent was stopped using stop event
if connected:
# Launch Controller communication
controller = Controller(config, heartbeat_stop_callback)
controller.start()
controller.join()
if not OSCheck.get_os_family() == OSConst.WINSRV_FAMILY:
ExitHelper.execute_cleanup()
stop_agent()
logger.info("finished")
def get_api_url(self):
return "%s://%s:%s" % (self.CONNECTION_PROTOCOL,
hostname.server_hostname(self),
self.get('server', 'url_port'))
def get_api_url(self):
return "%s://%s:%s" % (self.CONNECTION_PROTOCOL,
hostname.server_hostname(self),
self.get('server', 'url_port'))
def __init__(self, config):
self.config = config
self.keysdir = os.path.abspath(self.config.get('security', 'keysdir'))
self.server_crt = self.config.get('security', 'server_crt')
self.server_url = 'https://' + hostname.server_hostname(config) + ':' \
+ self.config.get('server', 'url_port')
def __init__(self, config):
self.connected = False
self.config = config
self.server = hostname.server_hostname(config)
self.port = config.get('server', 'secured_url_port')
self.connect()
def main(heartbeat_stop_callback=None):
global config
parser = OptionParser()
parser.add_option("-v", "--verbose", dest="verbose", action="store_true", help="verbose log output", default=False)
parser.add_option("-e", "--expected-hostname", dest="expected_hostname", action="store",
help="expected hostname of current host. If hostname differs, agent will fail", default=None)
(options, args) = parser.parse_args()
expected_hostname = options.expected_hostname
current_user = getpass.getuser()
logging_level = logging.DEBUG if options.verbose else logging.INFO
setup_logging(logger, AmbariConfig.AmbariConfig.getLogFile(), logging_level)
setup_logging(alerts_logger, AmbariConfig.AmbariConfig.getAlertsLogFile(), logging_level)
Logger.initialize_logger('resource_management', logging_level=logging_level)
default_cfg = {'agent': {'prefix': '/home/ambari'}}
config.load(default_cfg)
bind_signal_handlers(agentPid)
if (len(sys.argv) > 1) and sys.argv[1] == 'stop':
stop_agent()
if (len(sys.argv) > 2) and sys.argv[1] == 'reset':
reset_agent(sys.argv)
# Check for ambari configuration file.
resolve_ambari_config()
# Add syslog hanlder based on ambari config file
add_syslog_handler(logger)
# Starting data cleanup daemon
data_cleaner = None
if config.has_option('agent', 'data_cleanup_interval') and int(config.get('agent','data_cleanup_interval')) > 0:
data_cleaner = DataCleaner(config)
data_cleaner.start()
perform_prestart_checks(expected_hostname)
# Starting ping port listener
try:
#This acts as a single process machine-wide lock (albeit incomplete, since
# we still need an extra file to track the Agent PID)
ping_port_listener = PingPortListener(config)
except Exception as ex:
err_message = "Failed to start ping port listener of: " + str(ex)
logger.error(err_message)
sys.stderr.write(err_message)
sys.exit(1)
ping_port_listener.start()
update_log_level(config)
server_hostname = hostname.server_hostname(config)
server_url = config.get_api_url()
if not OSCheck.get_os_family() == OSConst.WINSRV_FAMILY:
daemonize()
try:
server_ip = socket.gethostbyname(server_hostname)
logger.info('Connecting to Ambari server at %s (%s)', server_url, server_ip)
except socket.error:
logger.warn("Unable to determine the IP address of the Ambari server '%s'", server_hostname)
# Wait until server is reachable
netutil = NetUtil(heartbeat_stop_callback)
retries, connected = netutil.try_to_connect(server_url, -1, logger)
# Ambari Agent was stopped using stop event
if connected:
# Launch Controller communication
controller = Controller(config, heartbeat_stop_callback)
controller.start()
controller.join()
if not OSCheck.get_os_family() == OSConst.WINSRV_FAMILY:
ExitHelper.execute_cleanup()
stop_agent()
logger.info("finished")