checks/ucd_cpu_util

   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 #    UCD-SNMP-MIB::ssCpuRawUser.0 = Counter32: 219998591
  28 #    UCD-SNMP-MIB::ssCpuRawNice.0 = Counter32: 0
  29 #    UCD-SNMP-MIB::ssCpuRawSystem.0 = Counter32: 98206536
  30 #    UCD-SNMP-MIB::ssCpuRawIdle.0 = Counter32: 3896034232
  31 #    UCD-SNMP-MIB::ssCpuRawWait.0 = Counter32: 325152257
  32 #    UCD-SNMP-MIB::ssCpuRawKernel.0 = Counter32: 96265777
  33 #    UCD-SNMP-MIB::ssCpuRawInterrupt.0 = Counter32: 1940759
  34
  35
  36 def inventory_ucd_cpu_util(info):
  37     if info:
  38         yield None, {}
  39
  40
  41 def check_ucd_cpu_util(item, params, info):
  42     # ancient iowait tuple rule
  43     # and legacy None default prior to 1.6
  44     params = transform_cpu_iowait(params)
  45
  46     counters = map(saveint, info[0])
  47     this_time = time.time()
  48     rates = [
  49         get_rate("cpu.util.%d" % index, this_time, counter)
  50         for index, counter in enumerate(counters)
  51     ]
  52
  53     total = sum(rates)
  54     if total == 0:
  55         raise MKCounterWrapped("Rates have not changed since last interval")
  56
  57     parts = [r / total for r in rates]
  58     user = 100 * (parts[0] + parts[1])
  59     system = 100 * (parts[2] + parts[5] + parts[6])
  60     wait = 100 * (parts[4])
  61     util = user + system + wait
  62
  63     yield check_levels(
  64         user, "user", None, human_readable_func=get_percent_human_readable, infoname="User")
  65     yield check_levels(
  66         system, "system", None, human_readable_func=get_percent_human_readable, infoname="System")
  67     yield check_levels(
  68         wait,
  69         "wait",
  70         params.get("iowait"),
  71         human_readable_func=get_percent_human_readable,
  72         infoname="Wait")
  73
  74     for util_result in check_cpu_util(util, params):
  75         yield util_result
  76
  77
  78 check_info["ucd_cpu_util"] = {
  79     'inventory_function': inventory_ucd_cpu_util,
  80     'check_function': check_ucd_cpu_util,
  81     'service_description': 'CPU utilization',
  82     'has_perfdata': True,
  83     'snmp_info': ('.1.3.6.1.4.1.2021.11', [50, 51, 52, 53, 54, 55, 56]),
  84     'snmp_scan_function': prefer_hr_else_ucd,
  85     'includes': ["ucd_hr.include", "transforms.include", "cpu_util.include"],
  86     'group': 'cpu_iowait',
  87 }