checks/emc_isilon_cpu

   1 #!/usr/bin/python
   2 # -*- encoding: utf-8; py-indent-offset: 4 -*-
   3 # +------------------------------------------------------------------+
   4 # |             ____ _               _        __  __ _  __           |
   5 # |            / ___| |__   ___  ___| | __   |  \/  | |/ /           |
   6 # |           | |   | '_ \ / _ \/ __| |/ /   | |\/| | ' /            |
   7 # |           | |___| | | |  __/ (__|   <    | |  | | . \            |
   8 # |            \____|_| |_|\___|\___|_|\_\___|_|  |_|_|\_\           |
   9 # |                                                                  |
  10 # | Copyright Mathias Kettner 2015             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
  28 def inventory_emc_isilon_cpu_utilization(info):
  29     # the device reports cpu utilization for each core and a total. This interprets only the total
  30     return [(None, None)]
  31
  32
  33 def check_emc_isilon_cpu_utilization(item, params, info):
  34     def range_index(value, *dividers):
  35         idx = 0
  36         for div in dividers:
  37             if value < div:
  38                 break
  39             else:
  40                 idx += 1
  41         return idx
  42
  43     # expecting only one line because why would there be multiple totals?
  44     for line in info:
  45         # all utilizations are in per mil
  46         # grouping user+nice and system+interrupt, the same way cpu_util.include does
  47         user_perc = (int(line[0]) + int(line[1])) * 0.1
  48         system_perc = int(line[2]) * 0.1
  49         interrupt_perc = int(line[3]) * 0.1
  50         total_perc = (user_perc + system_perc + interrupt_perc)
  51
  52         infotext = [
  53             "user: %.1f%%" % user_perc,
  54             ", system: %.1f%%" % system_perc,
  55             ", total: %.1f%%" % total_perc
  56         ]
  57
  58         status = 0
  59         if params:
  60             warn, crit = params
  61             status = range_index(total_perc, warn, crit)
  62
  63             if status != 0:
  64                 infotext.append(" (warn/crit at %.1f%%/%.1f%%)" % (warn, crit))
  65
  66         # perfometer expects a wait value but we don't have data for that
  67         perfdata = [("user", "%.3f" % user_perc), ("system", "%.3f" % system_perc),
  68                     ("interrupt", "%.3f" % interrupt_perc)]
  69
  70         return status, "".join(infotext), perfdata
  71
  72
  73 check_info["emc_isilon_cpu"] = {
  74     "check_function": check_emc_isilon_cpu_utilization,
  75     "inventory_function": inventory_emc_isilon_cpu_utilization,
  76     "service_description": "Node CPU utilization",
  77     "has_perfdata": True,
  78     "snmp_info": (
  79         ".1.3.6.1.4.1.12124.2.2.3",
  80         [
  81             1,  #nodeCPUUser
  82             2,  #nodeCPUNice
  83             3,  #nodeCPUSystem
  84             4,  #nodeCPUInterrupt
  85         ]),
  86     "snmp_scan_function": lambda oid: "isilon" in oid(".1.3.6.1.2.1.1.1.0").lower(),
  87     "group": "cpu_utilization",
  88 }