check_mk-check-nfsiostat/checks/nfsiostat

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#!/usr/bin/python
# +------------------------------------------------------------------+
# | ____ _ _ __ __ _ __ |
# | / ___| |__ ___ ___| | __ | \/ | |/ / |
# | | | | '_ \ / _ \/ __| |/ / | |\/| | ' / |
# | | |___| | | | __/ (__| < | | | | . \ |
# | \____|_| |_|\___|\___|_|\_\___|_| |_|_|\_\ |
# | |
# | Copyright Mathias Kettner 2018 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-
# tails. 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.
# example output
#
#y.y.y.y:/mount/name mounted on /var/log/da:
#
# op/s rpc bklog
#2579.20 0.00
#read: ops/s kB/s kB/op retrans avg RTT (ms) avg exe (ms)
# 0.000 0.000 0.000 0 (0.0%) 0.000 0.000
#write: ops/s kB/s kB/op retrans avg RTT (ms) avg exe (ms)
# 2578.200 165768.087 64.296 0 (0.0%) 21.394 13980.817
#
#x.x.x.x:/mount/name mounted on /data:
# ...
param_name = {
"0" : ("op_s","Operations", 1, "%.2f/s"),
"1" : ("rpc_backlog", "RPC Backlog", 1, "%.2f"),
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"2" : ("read_ops", "Read operations /s", 1, "%.3f/s"),
"3" : ("read_b_s", "Reads size /s", 1000, "%.3fB/s"),
"4" : ("read_b_op", "Read bytes per operation", 1000, "%.3fB/op"),
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"5" : ("read_retrans", "Read Retransmission", 1, "%.1f%%"),
"6" : ("read_retrans", "Read Retransmission", 1, "%.1f%%"),
"7" : ("read_avg_rtt_ms", "Read average RTT", 1000, "%.3f/s",),
"8" : ("read_avg_exe_ms", "Read average EXE", 1000, "%.3f/s",),
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"9" : ("write_ops_s", "Write operations /s", 1, "%.3f/s"),
"10" : ("write_b_s", "Writes size /s", 1000, "%.3fkB/s"),
"11" : ("write_b_op", "Write bytes per operation", 1000, "%.3fB/op"),
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"12" : ("write_retrans", "Write Retransmission", 1, "%.1f%%"),
"13" : ("write_retrans", "Write Retransmission", 1, "%.3f%%"),
"14" : ("write_avg_rtt_ms", "Write Average RTT", 1, "%.3f/ms"),
"15" : ("write_avg_exe_ms", "Write Average EXE", 1, "%.3f/ms"),
}
def parse_nfsiostat(info):
#removes double list
[new_info] = info
import re
# provides a dictionary with mountpoint as key and a list of 16 metrics
# in exact order
parsed = {m[0]: m[1:] for m in re.findall(r'(\S+:/\S+)%s' % \
(r'.*?([\d.]+)' * 16), str(new_info).strip('[]'), flags=re.DOTALL)}
return parsed
def inventory_nfsiostat(parsed):
inventory = []
for mountname in parsed.keys():
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yield mountname, {}
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def check_nfsiostat(item, params, parsed):
# check the value we recieved against our map of values
# assign appropriate type to value
def check_nfsiostat_params(count, value):
item = param_name[str(count)][0]
title = param_name[str(count)][1]
factor = param_name[str(count)][2]
fmt = param_name[str(count)][3]
value = float(value)
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if params:
if params.get(item, 0):
crit = float(params[item][1])
warn = float(params[item][0])
if value >= crit:
perfdata = [ (item, value, warn, crit ) ]
return(2, "%s: %s" % (title, fmt % value), perfdata)
elif value >= warn:
perfdata = [ (item, value, warn, crit ) ]
return(1, "%s: %s" % (title, fmt % value), perfdata)
perfdata = [ (item, value ) ]
return(0, "%s: %s" % (title, fmt % value), perfdata)
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for mountpoint, values in parsed.items():
# We have duplicate items at index 5 and 12. We exclude the dupes here
if mountpoint == item:
count = 0
for value in values:
if count != 5 and count != 12:
yield(check_nfsiostat_params(count, value))
count = count + 1
check_info['nfsiostat'] = {
'parse_function' : parse_nfsiostat,
'inventory_function' : inventory_nfsiostat,
'check_function' : check_nfsiostat,
'service_description' : 'NFS IO stats %s',
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'group' : 'nfsiostat',
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'has_perfdata' : True,
}