/usr/share/check_mk/checks/mysql is in check-mk-server 1.2.6p12-1.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 | #!/usr/bin/python
# -*- encoding: utf-8; py-indent-offset: 4 -*-
# +------------------------------------------------------------------+
# | ____ _ _ __ __ _ __ |
# | / ___| |__ ___ ___| | __ | \/ | |/ / |
# | | | | '_ \ / _ \/ __| |/ / | |\/| | ' / |
# | | |___| | | | __/ (__| < | | | | . \ |
# | \____|_| |_|\___|\___|_|\_\___|_| |_|_|\_\ |
# | |
# | Copyright Mathias Kettner 2014 mk@mathias-kettner.de |
# +------------------------------------------------------------------+
#
# This file is part of Check_MK.
# The official homepage is at http://mathias-kettner.de/check_mk.
#
# check_mk is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by
# the Free Software Foundation in version 2. check_mk is distributed
# in the hope that it will be useful, but WITHOUT ANY WARRANTY; with-
# out even the implied warranty of MERCHANTABILITY or FITNESS FOR A
# PARTICULAR PURPOSE. See the GNU General Public License for more de-
# ails. You should have received a copy of the GNU General Public
# License along with GNU Make; see the file COPYING. If not, write
# to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
# Boston, MA 02110-1301 USA.
# <<<mysql>>>
# Aborted_clients 0
# Aborted_connects 15
# Binlog_cache_disk_use 0
# Binlog_cache_use 0
# Binlog_stmt_cache_disk_use 0
# Binlog_stmt_cache_use 0
# Bytes_received 7198841
# Bytes_sent 19266624
# Com_admin_commands 200
# Com_assign_to_keycache 0
# Com_alter_db 0
# Com_alter_db_upgrade 0
# .--Helpers-------------------------------------------------------------.
# | _ _ _ |
# | | | | | ___| |_ __ ___ _ __ ___ |
# | | |_| |/ _ \ | '_ \ / _ \ '__/ __| |
# | | _ | __/ | |_) | __/ | \__ \ |
# | |_| |_|\___|_| .__/ \___|_| |___/ |
# | |_| |
# '----------------------------------------------------------------------'
def inventory_mysql(info):
if len(info) > 200: # should be at least 321 line
return [(None, {})]
def parse_mysql(info):
values = {}
for line in info:
if len(line) == 2:
varname, value = line
try:
value = int(value)
except:
pass
else:
varname = line[0]
value = None
values[varname] = value
return values
#.
# .--Sessions------------------------------------------------------------.
# | ____ _ |
# | / ___| ___ ___ ___(_) ___ _ __ ___ |
# | \___ \ / _ \/ __/ __| |/ _ \| '_ \/ __| |
# | ___) | __/\__ \__ \ | (_) | | | \__ \ |
# | |____/ \___||___/___/_|\___/|_| |_|___/ |
# | |
# '----------------------------------------------------------------------'
# params:
# { "running" : (20, 40),
# "total" : (100, 400),
# "connections" : (3, 5 ),
# }
def check_mysql_sessions(_no_item, params, info):
values = parse_mysql(info)
total_sessions = values["Threads_connected"]
running_sessions = values["Threads_running"]
connections = get_rate("mysql.sessions", time.time(), values["Connections"])
infotext = " - %d sessions (%d running), %.2f connections/s" % (
total_sessions, running_sessions, connections)
infos = []
perfdata = []
status = 0
for value, what, format, unit in [
( total_sessions, "total", "%d", "" ),
( running_sessions, "running", "%d", "" ),
( connections, "connections", "%.2f", "/s")]:
infos.append((format + " %s%s") % (value, what, unit))
if what in params:
warn, crit = params[what]
if value >= crit:
status = 2
infos[-1] += "(!!)"
elif value >= warn:
status = max(status, 1)
infos[-1] += "(!)"
else:
warn, crit = None, None
perfdata.append((what, value, warn, crit))
return (status, ", ".join(infos), perfdata)
check_info['mysql.sessions'] = {
"check_function" : check_mysql_sessions,
"inventory_function" : inventory_mysql,
"service_description" : "MySQL Daemon Sessions",
"has_perfdata" : True,
"group" : "mysql_sessions",
}
#.
# .--InnoDB-IO-----------------------------------------------------------.
# | ___ ____ ____ ___ ___ |
# | |_ _|_ __ _ __ ___ | _ \| __ ) |_ _/ _ \ |
# | | || '_ \| '_ \ / _ \| | | | _ \ _____| | | | | |
# | | || | | | | | | (_) | |_| | |_) |_____| | |_| | |
# | |___|_| |_|_| |_|\___/|____/|____/ |___\___/ |
# | |
# '----------------------------------------------------------------------'
def inventory_mysql_iostat(info):
values = parse_mysql(info)
if "Innodb_data_read" in values.keys():
return [(None, {})]
def check_mysql_iostat(item, params, info):
values = parse_mysql(info)
line = [ None, None, values["Innodb_data_read"] / 512, values["Innodb_data_written"] / 512]
return check_diskstat_line(time.time(), 'innodb_io', params, line)
check_info['mysql.innodb_io'] = {
"includes" : [ "diskstat.include" ],
"check_function" : check_mysql_iostat,
"inventory_function" : inventory_mysql_iostat,
"service_description" : "MySQL Daemon InnoDB IO",
"has_perfdata" : True,
"group" : "mysql_innodb_io",
}
#.
# .--Connections---------------------------------------------------------.
# | ____ _ _ |
# | / ___|___ _ __ _ __ ___ ___| |_(_) ___ _ __ ___ |
# | | | / _ \| '_ \| '_ \ / _ \/ __| __| |/ _ \| '_ \/ __| |
# | | |__| (_) | | | | | | | __/ (__| |_| | (_) | | | \__ \ |
# | \____\___/|_| |_|_| |_|\___|\___|\__|_|\___/|_| |_|___/ |
# | |
# +----------------------------------------------------------------------+
def inventory_mysql_connections(info):
values = parse_mysql(info)
if 'Max_used_connections' in values and 'max_connections' in values:
return [(None, {})]
def check_mysql_connections(item, params, info):
values = parse_mysql(info)
if 'Max_used_connections' not in values:
return (3, 'Connection information are missing')
# The maximum number of connections that have been in use simultaneously
# since the server started.
conn = float(values['Max_used_connections'])
# Maximum number of possible parallel connections
max_conn = float(values['max_connections'])
perc_used = conn / max_conn * 100
status = 0
status_txt = ''
if 'perc_used' in params:
warn, crit = params['perc_used']
if perc_used >= crit:
status = 2
status_txt = ' (Threshold (%0.2f%%) for number of maximum parallel connections ' \
'has been reached at least once since program start' % crit
elif perc_used >= warn:
status = 1
status_txt = ' (Threshold (%0.2f%%) for number of maximum parallel connections ' \
'has been reached at least once since program start)' % warn
return (status, 'Max. parallel Connections: %d (Max.: %d): %0.2f%%%s' %
(conn, max_conn, perc_used, status_txt))
check_info['mysql.connections'] = {
"check_function" : check_mysql_connections,
"inventory_function" : inventory_mysql_connections,
"service_description" : "MySQL Daemon Connections",
"has_perfdata" : False,
"group" : "mysql_connections",
}
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