checks/elasticsearch_nodes

   1 #!/usr/bin/python
   2 # -*- encoding: utf-8; py-indent-offset: 4 -*-
   3 # +------------------------------------------------------------------+
   4 # |             ____ _               _        __  __ _  __           |
   5 # |            / ___| |__   ___  ___| | __   |  \/  | |/ /           |
   6 # |           | |   | '_ \ / _ \/ __| |/ /   | |\/| | ' /            |
   7 # |           | |___| | | |  __/ (__|   <    | |  | | . \            |
   8 # |            \____|_| |_|\___|\___|_|\_\___|_|  |_|_|\_\           |
   9 # |                                                                  |
  10 # | Copyright Mathias Kettner 2019             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 # <<<elasticsearch_nodes>>>
  28 # mynode1 open_file_descriptors 434
  29 # mynode1 max_file_descriptors 4096
  30 # mynode1 cpu_percent 0
  31 # mynode1 cpu_total_in_millis 167010
  32 # mynode1 mem_total_virtual_in_bytes 7126290432
  33 # mynode2 open_file_descriptors 430
  34 # mynode2 max_file_descriptors 4096
  35 # mynode2 cpu_percent 0
  36 # mynode2 cpu_total_in_millis 151810
  37 # mynode2 mem_total_virtual_in_bytes 7107313664
  38
  39 nodes_info = {
  40     'open_file_descriptors': 'Open file descriptors',
  41     'max_file_descriptors': 'Max file descriptors',
  42     'cpu_percent': 'CPU used',
  43     'cpu_total_in_millis': 'CPU total in ms',
  44     'mem_total_virtual_in_bytes': 'Total virtual memory'
  45 }
  46
  47
  48 def parse_elasticsearch_nodes(info):
  49     parsed = {}
  50
  51     for name, desc, value_str in info:
  52         try:
  53             if desc == 'cpu_percent':
  54                 value = float(value_str)
  55             else:
  56                 value = int(value_str)
  57
  58             parsed.setdefault(name, {}).setdefault(desc, (value, nodes_info[desc]))
  59
  60         except (IndexError, ValueError):
  61             pass
  62
  63     return parsed
  64
  65
  66 factory_settings["elasticsearch_nodes"] = {"cpu_levels": (75.0, 90.0)}
  67
  68
  69 @get_parsed_item_data
  70 def check_elasticsearch_nodes(item, params, item_data):
  71     for key, hr_func in [
  72         ('cpu_percent', get_percent_human_readable),
  73         ('cpu_total_in_millis', int),
  74         ('mem_total_virtual_in_bytes', get_bytes_human_readable),
  75         ('open_file_descriptors', int),
  76         ('max_file_descriptors', int),
  77     ]:
  78         value, infotext = item_data[key]
  79
  80         yield check_levels(
  81             value, key, params.get(key), human_readable_func=hr_func, infoname=infotext)
  82
  83
  84 check_info["elasticsearch_nodes"] = {
  85     "parse_function": parse_elasticsearch_nodes,
  86     "check_function": check_elasticsearch_nodes,
  87     "inventory_function": discover(),
  88     "default_levels_variable": "elasticsearch_nodes",
  89     "service_description": "Elasticsearch Node %s",
  90     "has_perfdata": True,
  91     "group": "elasticsearch_nodes",
  92     "includes": ["cpu_util.include"],
  93 }