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Current Path : /usr/local/lib/python3.9/site-packages/agent360/plugins/ |
Current File : //usr/local/lib/python3.9/site-packages/agent360/plugins/nginx.py |
#!/usr/bin/env python # -*- coding: utf-8 -*- # import psutil try: from urllib.parse import urlparse, urlencode from urllib.request import urlopen, Request from urllib.error import HTTPError except ImportError: from urlparse import urlparse from urllib import urlencode from urllib2 import urlopen, Request, HTTPError import time import plugins class Plugin(plugins.BasePlugin): __name__ = 'nginx' def run(self, config): ''' Provides the following metrics (example): "accepts": 588462, "accepts_per_second": 0.0, "active_connections": 192, "handled": 588462, "handled_per_second": 0.0, "reading": 0, "requests": 9637106, "requests_per_second": 0.0, "waiting": 189, "writing": 3 requests, accepts, handled are values since the start of nginx. *_per_second values calculated from them using cached values from previous call. ''' try: results = dict() next_cache = dict() # request = urllib2.Request(config.get('nginx', 'status_page_url')) # raw_response = urllib2.urlopen(request) next_cache['ts'] = time.time() prev_cache = self.get_agent_cache() # Get absolute values from previous check # response = raw_response.readlines() request = Request(config.get('nginx', 'status_page_url')) response = urlopen(request).read().decode('utf-8').split("\n") # Active connections: N # active_connections = response[0].split(':')[1].strip() active_connections = response[0].split()[-1] results['active_connections'] = int(active_connections) # server accepts handled requests keys = response[1].split()[1:] values = response[2].split() for key, value in zip(keys, values): next_cache[key] = int(value) results[key] = next_cache[key] # Keep absolute values in results try: if next_cache[key] >= prev_cache[key]: results['%s_per_second' % key] = \ (next_cache[key] - prev_cache[key]) / \ (next_cache['ts'] - prev_cache['ts']) else: # Nginx was restarted after previous caching results['%s_per_second' % key] = \ next_cache[key] / \ (next_cache['ts'] - prev_cache['ts']) except KeyError: # No cache yet, can't calculate results['%s_per_second' % key] = 0.0 # Reading: X Writing: Y Waiting: Z keys = response[3].split()[0::2] keys = [entry.strip(':').lower() for entry in keys] values = response[3].split()[1::2] for key, value in zip(keys, values): results[key] = int(value) # Cache absolute values for next check calculations self.set_agent_cache(next_cache) return results except Exception: return False if __name__ == '__main__': Plugin().execute()