checks/memory.include

   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 check_memory_simple(used, total, params):
  29     # Convert old-style tuple params to dict
  30     if params:
  31         if isinstance(params, tuple):
  32             params = {"levels": ("perc_used", params)}
  33     else:
  34         params = {"levels": ("ignore")}
  35
  36     perc_used = (float(used) / total) * 100
  37     infotext = "Usage: %s (Used: %s, Total: %s)" % (get_percent_human_readable(perc_used),
  38                                                     get_bytes_human_readable(used),
  39                                                     get_bytes_human_readable(total))
  40
  41     status = 0
  42     if params["levels"][0] == "perc_used":
  43         warn_perc, crit_perc = params["levels"][1]
  44         warn_abs = (warn_perc / 100.0) * total
  45         crit_abs = (crit_perc / 100.0) * total
  46         levelstext = " (warn/crit at %s/%s used)" % (get_percent_human_readable(warn_perc),
  47                                                      get_percent_human_readable(crit_perc))
  48
  49     elif params["levels"][0] == "abs_free":
  50         warn_abs_free, crit_abs_free = params["levels"][1]
  51         warn_abs = total - warn_abs_free
  52         crit_abs = total - crit_abs_free
  53         levelstext = " (warn/crit below %s/%s free)" % (get_bytes_human_readable(warn_abs_free),
  54                                                         get_bytes_human_readable(crit_abs_free))
  55
  56     else:
  57         # No levels imposed, ie. params = {'levels': 'ignore'}
  58         crit_abs = None
  59         warn_abs = None
  60         levelstext = ""
  61
  62     if crit_abs is not None and used >= crit_abs:
  63         status = 2
  64     elif warn_abs is not None and used >= warn_abs:
  65         status = 1
  66     if status:
  67         infotext += levelstext
  68
  69     perfdata = [("memory_used", used, warn_abs, crit_abs, 0, total)]
  70     return status, infotext, perfdata
  71
  72
  73 def check_memory_multiitem(params, data, base=1024):
  74     if 'mem_total' not in data:
  75         return 3, 'Invalid data: missing mem_total'
  76     mem_total = data['mem_total']
  77
  78     if 'mem_used' in data:
  79         mem_used = data["mem_used"]
  80         mem_avail = mem_total - mem_used
  81     elif 'mem_avail' in data:
  82         mem_avail = data['mem_avail']
  83         mem_used = mem_total - mem_avail
  84     else:
  85         return 3, 'Invalid data: missing mem_used or mem_avail sizes'
  86
  87     infotext = '%s used (%s of %s)' % (get_percent_human_readable(
  88         float(mem_used) / float(mem_total) * 100), get_bytes_human_readable(mem_used, base=base),
  89                                        get_bytes_human_readable(mem_total, base=base))
  90
  91     state = 0
  92     if 'levels' in params:
  93         warn, crit = params['levels']
  94         if isinstance(warn, int):
  95             warn_absolute = warn
  96         else:
  97             warn_absolute = int(mem_total * warn / 100)
  98
  99         if isinstance(crit, int):
 100             crit_absolute = crit
 101         else:
 102             crit_absolute = int(mem_total * crit / 100)
 103
 104         if mem_used > crit_absolute:
 105             state = 2
 106         elif mem_used > warn_absolute:
 107             state = 1
 108         if state:
 109             infotext += ' (warn/crit at %s/%s)' % (get_bytes_human_readable(warn_absolute),
 110                                                    get_bytes_human_readable(crit_absolute))
 111     else:
 112         warn_absolute = None
 113         crit_absolute = None
 114
 115     return state, infotext, [('memused', mem_used, warn_absolute, crit_absolute, 0, mem_total)]