checks/postgres_query_duration

   1 #!/usr/bin/python
   2 # -*- encoding: utf-8; py-indent-offset: 4 -*-
   3 # +------------------------------------------------------------------+
   4 # |             ____ _               _        __  __ _  __           |
   5 # |            / ___| |__   ___  ___| | __   |  \/  | |/ /           |
   6 # |           | |   | '_ \ / _ \/ __| |/ /   | |\/| | ' /            |
   7 # |           | |___| | | |  __/ (__|   <    | |  | | . \            |
   8 # |            \____|_| |_|\___|\___|_|\_\___|_|  |_|_|\_\           |
   9 # |                                                                  |
  10 # | Copyright Mathias Kettner 2014             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 # <<<postgres_query_duration>>>
  28 # [databases_start]
  29 # postgres
  30 # testdb
  31 # datenbank
  32 # [databases_end]
  33 # datname;datid;usename;client_addr;state;seconds;pid;current_query
  34 # postgres;12068;postgres;;active;0;12631;SELECT datname, datid, usename, ....
  35
  36 # instance
  37 # <<<postgres_query_duration>>>
  38 # [[[foobar]]]
  39 # [databases_start]
  40 # postgres
  41 # testdb
  42 # [databases_end]
  43 # ...
  44
  45
  46 def inventory_postgres_query_duration(parsed):
  47     for entry in parsed.keys():
  48         yield entry, {}
  49
  50
  51 def check_postgres_query_duration(item, _no_params, parsed):
  52     if item not in parsed:
  53         # In case of missing information we assume that the login into
  54         # the database has failed and we simply skip this check. It won't
  55         # switch to UNKNOWN, but will get stale.
  56         raise MKCounterWrapped("Login into database failed")
  57
  58     longest_time = -1
  59     longest_info = None
  60     for element in parsed[item]:
  61         if int(element["seconds"]) > longest_time:
  62             longest_info = element
  63             longest_time = int(element["seconds"])
  64
  65     if longest_info:
  66         yield 0, "Longest query is %s seconds" % longest_info["seconds"]
  67         if longest_info["usename"]:
  68             yield 0, "Username: %s" % longest_info["usename"]
  69         if longest_info["client_addr"]:
  70             yield 0, "Client: %s" % longest_info["client_addr"]
  71         if longest_info["state"].lower() != "active":
  72             yield 0, "Query state: %s" % longest_info["state"]
  73         yield 0, "PID: %s, Query: %s" % (longest_info["pid"], longest_info["current_query"])
  74
  75     else:
  76         yield 0, "No query is running"
  77
  78
  79 check_info['postgres_query_duration'] = {
  80     "parse_function": parse_postgres_dbs,
  81     "check_function": check_postgres_query_duration,
  82     "inventory_function": inventory_postgres_query_duration,
  83     "service_description": "PostgreSQL Query Duration %s",
  84     "includes": ["postgres.include"]
  85 }