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convert to daemon process, instead of cron job #1

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40 changes: 22 additions & 18 deletions ganglia-nagios-bridge.py
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Original file line number Diff line number Diff line change
Expand Up @@ -196,7 +196,7 @@ def handle_metric(self, metric_name, service_name, attrs):
self.value_handler.process(self.metric, service_name, self.host_name, metric_name, metric_value, metric_tn, metric_tmax, metric_dmax, last_seen)

# main program code
if __name__ == '__main__':
if __name__ == '__main__':
try:
# parse command line
parser = argparse.ArgumentParser(description='read Ganglia XML and generate Nagios check results file')
Expand All @@ -221,22 +221,26 @@ def handle_metric(self, metric_name, service_name, attrs):
metrics.append((metric_c, metric_def[1]))
hosts.append((host_c, metrics))
clusters_c.append((cluster_c, hosts))

# connect to the gmetad or gmond
sock = socket.create_connection((gmetad_host, gmetad_port))
# set up the SAX parser
parser = xml.sax.make_parser()
pg = PassiveGenerator(force_dmax)
parser.setContentHandler(GangliaHandler(clusters_c, pg))
# run the main program loop
parser.parse(SocketInputSource(sock))

# write out for Nagios
pg.done()

# all done
sock.close()
except socket.error as e:
logging.warn('Failed to connect to gmetad: %s', e.strerror)
except Exception as e:
logging.warn('Failed to read configuration file: %s', e)
while True:
try:
# connect to the gmetad or gmond
sock = socket.create_connection((gmetad_host, gmetad_port))
# set up the SAX parser
parser = xml.sax.make_parser()
pg = PassiveGenerator(force_dmax)
parser.setContentHandler(GangliaHandler(clusters_c, pg))
# run the main program loop
parser.parse(SocketInputSource(sock))

# write out for Nagios
pg.done()

# all done
sock.close()
time.sleep(60)
except socket.error as e:
logging.warn('Failed to connect to gmetad: %s', e.strerror)