checks/ucd_mem

   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 # .1.3.6.1.4.1.2021.4.5.0 4003584 --> UCD-SNMP-MIB::memTotalReal.0
  28 # .1.3.6.1.4.1.2021.4.6.0 188296  --> UCD-SNMP-MIB::memAvailReal.0
  29
  30 # suggested by cutomer
  31 factory_settings["ucd_mem_default_levels"] = {"levels": ("perc_used", (80.0, 90.0))}
  32
  33
  34 def inventory_ucd_mem(info):
  35     if info and len(info[0]) > 1:
  36         for line in info[0]:
  37             if line == "":
  38                 return []
  39         return [("", {})]
  40
  41
  42 def check_ucd_mem(_no_item, params, info):
  43     mem_total_bytes, mem_avail_bytes = \
  44         [int(x.replace("kB", "").strip()) * 1024 for x in info[0]]
  45     mem_used_bytes = mem_total_bytes - mem_avail_bytes
  46     return check_memory_simple(mem_used_bytes, mem_total_bytes, params)
  47
  48
  49 check_info['ucd_mem'] = {
  50     'inventory_function': inventory_ucd_mem,
  51     'check_function': check_ucd_mem,
  52     'service_description': 'Memory',
  53     'has_perfdata': True,
  54     'snmp_info': (
  55         ".1.3.6.1.4.1.2021.4",
  56         [
  57             "5",  # memTotal     -> kB
  58             "6",  # memAvailable -> kB
  59         ]),
  60     # Some devices are reporting wrong data on
  61     # HOST-RESOURCES-MIB. Use UCD-MIB in these
  62     # cases instead
  63     'snmp_scan_function': is_ucd_mem,
  64     'default_levels_variable': 'ucd_mem_default_levels',
  65     'group': 'memory_simple',
  66     'includes': ["ucd_hr.include", "memory.include"],
  67 }