checks/mssql_connections

   1 #!/usr/bin/python
   2 # -*- encoding: utf-8; py-indent-offset: 4 -*-
   3 # +------------------------------------------------------------------+
   4 # |             ____ _               _        __  __ _  __           |
   5 # |            / ___| |__   ___  ___| | __   |  \/  | |/ /           |
   6 # |           | |   | '_ \ / _ \/ __| |/ /   | |\/| | ' /            |
   7 # |           | |___| | | |  __/ (__|   <    | |  | | . \            |
   8 # |            \____|_| |_|\___|\___|_|\_\___|_|  |_|_|\_\           |
   9 # |                                                                  |
  10 # | Copyright Mathias Kettner 2017             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 # Example output:
  28 # <<<mssql_connections>>>
  29 # MSSQLSERVER master 16
  30 # MSSQLSERVER tempdb 1
  31
  32 factory_settings["mssql_connections_default_levels"] = {
  33     "levels": (20, 50),
  34 }
  35
  36
  37 def parse_mssql_connections(info):
  38     parsed = {}
  39     for line in info:
  40         try:
  41             instance, db_name, connection_count = line
  42             connection_count = int(connection_count)
  43             parsed.setdefault("%s %s" % (instance, db_name), connection_count)
  44         except ValueError:
  45             pass
  46     return parsed
  47
  48
  49 def inventory_mssql_connections(parsed):
  50     for item in parsed:
  51         yield item, {}
  52
  53
  54 def check_mssql_connections(item, params, parsed):
  55     # If a database is missing in the agent output there are no
  56     # active connections for that database.
  57     connection_count = parsed.get(item, 0)
  58
  59     warn, crit = params['levels']
  60     if connection_count >= crit:
  61         state = 2
  62     elif connection_count >= warn:
  63         state = 1
  64     else:
  65         state = 0
  66
  67     infotext = "Connections: %d" % connection_count
  68     if state:
  69         infotext += " (warn/crit at %d/%d)" % (warn, crit)
  70     return state, infotext, [('connections', connection_count, warn, crit)]
  71
  72
  73 check_info['mssql_connections'] = {
  74     'parse_function': parse_mssql_connections,
  75     'inventory_function': inventory_mssql_connections,
  76     'check_function': check_mssql_connections,
  77     'service_description': 'MSSQL Connections %s',
  78     'group': 'mssql_connections',
  79     'default_levels_variable': "mssql_connections_default_levels",
  80     'has_perfdata': True,
  81 }