checks/cpu

   1 #!/usr/bin/python
   2 # -*- encoding: utf-8; py-indent-offset: 4 -*-
   3 # +------------------------------------------------------------------+
   4 # |             ____ _               _        __  __ _  __           |
   5 # |            / ___| |__   ___  ___| | __   |  \/  | |/ /           |
   6 # |           | |   | '_ \ / _ \/ __| |/ /   | |\/| | ' /            |
   7 # |           | |___| | | |  __/ (__|   <    | |  | | . \            |
   8 # |            \____|_| |_|\___|\___|_|\_\___|_|  |_|_|\_\           |
   9 # |                                                                  |
  10 # | Copyright Mathias Kettner 2014             mk@mathias-kettner.de |
  11 # +------------------------------------------------------------------+
  12 #
  13 # This file is part of Check_MK.
  14 # The official homepage is at http://mathias-kettner.de/check_mk.
  15 #
  16 # check_mk is free software;  you can redistribute it and/or modify it
  17 # under the  terms of the  GNU General Public License  as published by
  18 # the Free Software Foundation in version 2.  check_mk is  distributed
  19 # in the hope that it will be useful, but WITHOUT ANY WARRANTY;  with-
  20 # out even the implied warranty of  MERCHANTABILITY  or  FITNESS FOR A
  21 # PARTICULAR PURPOSE. See the  GNU General Public License for more de-
  22 # tails. You should have  received  a copy of the  GNU  General Public
  23 # License along with GNU Make; see the file  COPYING.  If  not,  write
  24 # to the Free Software Foundation, Inc., 51 Franklin St,  Fifth Floor,
  25 # Boston, MA 02110-1301 USA.
  26
  27 # Output is taken from /proc/loadavg plus the number of cores:
  28 # 0.26 0.47 0.52 2/459 19531 4
  29
  30 #   .--Load----------------------------------------------------------------.
  31 #   |                       _                    _                         |
  32 #   |                      | |    ___   __ _  __| |                        |
  33 #   |                      | |   / _ \ / _` |/ _` |                        |
  34 #   |                      | |__| (_) | (_| | (_| |                        |
  35 #   |                      |_____\___/ \__,_|\__,_|                        |
  36 #   |                                                                      |
  37 #   '----------------------------------------------------------------------'
  38
  39 cpuload_default_levels = (5.0, 10.0)
  40
  41
  42 def inventory_cpu_load(info):
  43     if len(info) == 1 and len(info[0]) >= 5:
  44         return [(None, "cpuload_default_levels")]
  45
  46
  47 def check_cpu_load(item, params, info):
  48     if not info:
  49         return None
  50
  51     if len(info[0]) >= 6:
  52         # There have been broken AIX agents for a long time which produced data like follows.
  53         # Newer agents deal with this, but to be nice to old agents: deal with it.
  54         # <<<cpu>>>
  55         # 0.00 0.00 0.00 1/97 8913088 aixxyz configuration: @lcpu=8 @mem=24576MB @ent=0.20
  56         line = " ".join(info[0])
  57         if "lcpu=" in line:
  58             for part in info[0]:
  59                 if "lcpu=" in part:
  60                     num_cpus = int(part.split("=", 1)[1])
  61                     break
  62         else:
  63             num_cpus = int(info[0][5])
  64     else:
  65         num_cpus = 1
  66
  67     load = map(float, info[0][0:3])
  68     return check_cpu_load_generic(params, load, num_cpus)
  69
  70
  71 check_info["cpu.loads"] = {
  72     "check_function": check_cpu_load,
  73     "inventory_function": inventory_cpu_load,
  74     "service_description": "CPU load",
  75     "has_perfdata": True,
  76     "group": "cpu_load",
  77     "includes": ["cpu_load.include"],
  78     "handle_real_time_checks": True,
  79 }
  80
  81 #.
  82 #   .--Threads-------------------------------------------------------------.
  83 #   |                _____ _                        _                      |
  84 #   |               |_   _| |__  _ __ ___  __ _  __| |___                  |
  85 #   |                 | | | '_ \| '__/ _ \/ _` |/ _` / __|                 |
  86 #   |                 | | | | | | | |  __/ (_| | (_| \__ \                 |
  87 #   |                 |_| |_| |_|_|  \___|\__,_|\__,_|___/                 |
  88 #   |                                                                      |
  89 #   '----------------------------------------------------------------------'
  90
  91 threads_default_levels = (2000, 4000)
  92
  93
  94 def inventory_cpu_threads(info):
  95     if len(info) == 1 and len(info[0]) >= 5:
  96         return [(None, "threads_default_levels")]
  97
  98
  99 def check_cpu_threads(item, params, info):
 100     try:
 101         nthreads = int(info[0][3].split('/')[1])
 102     except:
 103         return (3, "invalid output from plugin")
 104     warn, crit = params
 105     perfdata = [('threads', nthreads, warn, crit, 0)]
 106     if nthreads >= crit:
 107         return (2, "%d threads (critical at %d)" % (nthreads, crit), perfdata)
 108     elif nthreads >= warn:
 109         return (1, "%d threads (warning at %d)" % (nthreads, warn), perfdata)
 110     return (0, "%d threads" % (nthreads,), perfdata)
 111
 112
 113 check_info["cpu.threads"] = {
 114     "check_function": check_cpu_threads,
 115     "inventory_function": inventory_cpu_threads,
 116     "service_description": "Number of threads",
 117     "has_perfdata": True,
 118     "group": "threads",
 119     "handle_real_time_checks": True,
 120 }