def fetch_stats(host, port):
cmd = 'www-browser -dump http://%s:%s/server-status?auto' % (host, port)
stdout = run(cmd)
stats = []
for line in stdout.split("\n"):
if ':' not in line:
continue
parts = line.split(':')
if len(parts) != 2:
continue
key, value = parts
if key in types:
prototype = types[key]
stats.append({
'name': prototype['name'],
'type': prototype['type'],
'value': value,
})
return stats
def fetch_stats(host, port):
cmd = 'www-browser -dump http://%s:%s/nginx_status' % (host, port)
stdout = run(cmd)
lines = stdout.split("\n")
if len(lines) < 4:
raise RuntimeError("Invalid output: %s" % stdout)
metrics = {}
metrics['nginx_active_connections'] = {
'name': 'nginx_active_connections',
'type': 'uint32',
'value': int(lines[0].split(': ')[1])
}
# Global stats - need to use these with previous values
accepts, handled, requests = map(int, lines[2].split())
metrics['nginx_server_accepts'] = {
'name': 'nginx_server_accepts',
'type': 'uint32',
'value': accepts
}
metrics['nginx_server_handled'] = {
'name': 'nginx_server_handled',
'type': 'uint32',
'value': handled
}
metrics['nginx_server_requests'] = {
'name': 'nginx_server_requests',
'type': 'uint32',
'value': requests
}
# Attempt to load stats
ts = int(time.time())
filepath = '/tmp/nginx_stats'
if os.path.exists(filepath):
with open(filepath, 'r') as f:
old_data = pickle.load(f)
delta = ts - old_data['timestamp']
metrics['nginx_server_accepts_rate'] = {
'name': 'nginx_server_accepts_rate',
'type': 'float',
'value': (accepts - old_data['accepts']) / delta
}
metrics['nginx_server_handled_rate'] = {
'name': 'nginx_server_handled_rate',
'type': 'float',
'value': (handled - old_data['handled']) / delta
}
metrics['nginx_server_requests_rate'] = {
'name': 'nginx_server_requests_rate',
'type': 'float',
'value': (requests - old_data['requests']) / delta
}
data = {
'timestamp': ts,
'accepts': accepts,
'handled': handled,
'requests': requests
}
with open(filepath, 'w') as f:
pickle.dump(data, f)
# Active stats
match = re.match(r'^Reading: (\d+) Writing: (\d+) Waiting: (\d+)', lines[3])
reading, writing, waiting = map(int, match.groups())
metrics['nginx_reading'] = {
'name': 'nginx_reading',
'type': 'uint32',
'value': reading
}
metrics['nginx_writing'] = {
'name': 'nginx_writing',
'type': 'uint32',
'value': writing
}
metrics['nginx_waiting'] = {
'name': 'nginx_waiting',
'type': 'uint32',
'value': waiting
}
return metrics
