Nagiosgraph with Windows support

After reviewing the four main tools for graphing performance with Nagios (APAN, Nagiosgraph, Nagiostat, and PerfParse), I decided that Nagiosgraph was the easiest for me to get up and running. Out of the box it worked great for my Linux systems and my network tests, but I needed to add support for monitoring my Windows servers.

I have used APAN in the past, but it was really tough to configure. I also tried PerfParse and liked it. However, it required a lot more resources for the database than I was prepared to handle, and I could probably only keep 30 days of data. But it worked great.

To make things easier I installed the latest CVS nightly of the 1.4.0alpha Nagios Plugins. As of 20040817 these plugins supported performance data output for the check_nt plugin (the one that works with the NSClient service). Once these plugins were complied and installed, I updated the nagiosgraph map file. This file is what is used to parse the output for generating the stats.

Here are the additions that I added to the map file to support graphing of the Windows statistics (note this requires the 1.4.0 plugin install) as well as the fping service.

Update: I have corrected the errors as pointed out in the comments as well added an entry for the MSSQL plugin.

# Service type: ntload
#   check command: check_nt -H Address -v CPULOAD -l5,70,90,30,70,90
#   output: CPU Load 9% (5 min average) 11% (30 min average)
#   perfdata: '5 min avg Load'=9%;70;80;0;100 '30 min avg Load'=11%;70;90;0;100
#/perfdata:.*5 min avg Load'=(\d+)%;(\d+);(\d+);\d+;\d+ '30 min avg Load'=(\d+)%;\d+;\d+;\d+;\d+ /
/output:.*?(\d+)% .*?(\d+)% /
and push @s, [ ntload,
       [ avg05min, GAUGE, $1 ],
       [ avg30min, GAUGE, $2 ] ];

# Service type: ntmem
#   check command: check_nt -H Address -v MEMUSE -w 50 -c 90
#   output: Memory usage: total:2467.75 Mb - used: 510.38 Mb (21%) - free: 1957.37 Mb (79%)
#   perfdata: Memory usage=510.38Mb;1233.88;2220.98;0.00;2467.75
/perfdata:.*usage=([.0-9]+)Mb;([.0-9]+);([.0-9]+);([.0-9]+);([.0-9]+)/
and push @s, [ ntmem,
       [ memused, GAUGE, $1*1024**2 ],
       [ memwarn, GAUGE, $2*1024**2 ],
       [ memcrit, GAUGE, $3*1024**2 ],
       [ memmmax, GAUGE, $5*1024**2 ] ];

# Service type: ntdisk
#   check command: check_nt -H Address -v USEDDISKSPACE -lc -w 75 -c 90
#   output: c:\ - total: 25.87 Gb - used: 4.10 Gb (16%) - free 21.77 Gb (84%)
#   perfdata: c:\ Used Space=4.10Gb;19.40;23.28;0.00;25.87
/perfdata:.*Space=([.0-9]+)Gb;([.0-9]+);([.0-9]+);([.0-9]+);([.0-9]+)/
and push @s, [ ntdisk,
       [ diskused, GAUGE, $1*1024**3 ],
       [ diskwarn, GAUGE, $2*1024**3 ],
       [ diskcrit, GAUGE, $3*1024**3 ],
       [ diskmaxi, GAUGE, $5*1024**3 ] ];

# Service type: fping
#   output:FPING OK - 10.1.1.1 (loss=20%, rta=385.000000 ms)
#   perfdata: loss=20%;79;100;0;100 rta=0.385000s;2.000000;5.000000;0.000000
#/output:PING.*?(\d+)%.+?([.\d]+)\sms/
/perfdata:.*loss=(\d+)%.*rta=([.0-9]+)s;/
and push @s, [ fping,
       [ losspct, GAUGE, $1 ],
       [ rta,     GAUGE, $2 ] ];

# Service type: mssql
#   output:   OK - MS SQL Server 2000 has 42 user(s) connected:  18 appTrendCtrMgr, 1 nagios, 2 NTAUTHORITY\SYSTEM.
#   perfdata: users=36;;;;
#/output:*.MS SQL Server 2000 has ([0-9]+) use/
/perfdata:.*users=([0-9]+)/
and push @s, [ mssql,
       [ users, GAUGE, $1 ] ];

In addition here are the entries that created for serviceextinfo.cfg file to produce the graphs:

define serviceextinfo {
  service_description  FPing
  host_name   host
  notes_url      /nagiosgraph/show.cgi?host=$HOSTNAME$&service=$SERVICEDESC$&db=fping,rta&db=fping,losspct
  icon_image  graph.png
  icon_image_alt  View graphs
}

define serviceextinfo {
  service_description  NTload
  host_name       ntserver1,ntserver2
  notes_url       /nagiosgraph/show.cgi?host=$HOSTNAME$&service=$SERVICEDESC$&db=ntload,avg05min,avg30min
  icon_image      graph.png
  icon_image_alt  View graphs
}

define serviceextinfo {
  service_description  NTmem
  host_name      ntserver1,ntserver2
  notes_url       /nagiosgraph/show.cgi?host=$HOSTNAME$&service=$SERVICEDESC$&db=ntmem,memused,memwarn,memcrit,memmmax
  icon_image      graph.png
  icon_image_alt  View graphs
}

define serviceextinfo {
  service_description  NTdiskC
  host_name      ntserver1,ntserver2
  notes_url       /nagiosgraph/show.cgi?host=$HOSTNAME$&service=$SERVICEDESC$&db=ntdisk,diskused,diskwarn,diskcrit,diskmaxi
  icon_image      graph.png
  icon_image_alt  View graphs
}

define serviceextinfo {
  service_description  NTdiskD
  host_name      ntserver1,ntserver2
  notes_url       /nagiosgraph/show.cgi?host=$HOSTNAME$&service=$SERVICEDESC$&db=ntdisk,diskused,diskwarn,diskcrit,diskmaxi
  icon_image      graph.png
  icon_image_alt  View graphs
}

define serviceextinfo {
  service_description  NTdiskE
  host_name      ntserver1,ntserver2
  notes_url       /nagiosgraph/show.cgi?host=$HOSTNAME$&service=$SERVICEDESC$&db=ntdisk,diskused,diskwarn,diskcrit,diskmaxi
  icon_image      graph.png
  icon_image_alt  View graphs
}

define serviceextinfo {
  service_description  MSSQL
  host_name       bsql1
  notes_url       /nagiosgraph/show.cgi?host=$HOSTNAME$&service=$SERVICEDESC$&db=mssql,users
  icon_image      graph.png
  icon_image_alt  View graphs
}

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Tags: check_nt, graph, monitoring, nagios, opensource, windows

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