python.d/nginx.chart.py

   1 # -*- coding: utf-8 -*-
   2 # Description: nginx netdata python.d module
   3 # Author: Pawel Krupa (paulfantom)
   4
   5 from base import UrlService
   6
   7 # default module values (can be overridden per job in `config`)
   8 # update_every = 2
   9 priority = 60000
  10 retries = 60
  11
  12 # default job configuration (overridden by python.d.plugin)
  13 # config = {'local': {
  14 #             'update_every': update_every,
  15 #             'retries': retries,
  16 #             'priority': priority,
  17 #             'url': 'http://localhost/stub_status'
  18 #          }}
  19
  20 # charts order (can be overridden if you want less charts, or different order)
  21 ORDER = ['connections', 'requests', 'connection_status', 'connect_rate']
  22
  23 CHARTS = {
  24     'connections': {
  25         'options': [None, 'nginx Active Connections', 'connections', 'active connections', 'nginx.connections', 'line'],
  26         'lines': [
  27             ["active"]
  28         ]},
  29     'requests': {
  30         'options': [None, 'nginx Requests', 'requests/s', 'requests', 'nginx.requests', 'line'],
  31         'lines': [
  32             ["requests", None, 'incremental']
  33         ]},
  34     'connection_status': {
  35         'options': [None, 'nginx Active Connections by Status', 'connections', 'status', 'nginx.connection_status', 'line'],
  36         'lines': [
  37             ["reading"],
  38             ["writing"],
  39             ["waiting", "idle"]
  40         ]},
  41     'connect_rate': {
  42         'options': [None, 'nginx Connections Rate', 'connections/s', 'connections rate', 'nginx.connect_rate', 'line'],
  43         'lines': [
  44             ["accepts", "accepted", "incremental"],
  45             ["handled", None, "incremental"]
  46         ]}
  47 }
  48
  49
  50 class Service(UrlService):
  51     def __init__(self, configuration=None, name=None):
  52         UrlService.__init__(self, configuration=configuration, name=name)
  53         if len(self.url) == 0:
  54             self.url = "http://localhost/stub_status"
  55         self.order = ORDER
  56         self.definitions = CHARTS
  57
  58     def _get_data(self):
  59         """
  60         Format data received from http request
  61         :return: dict
  62         """
  63         try:
  64             raw = self._get_raw_data().split(" ")
  65             return {'active': int(raw[2]),
  66                     'requests': int(raw[9]),
  67                     'reading': int(raw[11]),
  68                     'writing': int(raw[13]),
  69                     'waiting': int(raw[15]),
  70                     'accepts': int(raw[7]),
  71                     'handled': int(raw[8])}
  72         except (ValueError, AttributeError):
  73             return None