150 lines
3.2 KiB
Plaintext
150 lines
3.2 KiB
Plaintext
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#!/usr/bin/perl -w
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# Plugin to monitor ntp queries
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# (c)2009 Chris Hastie: chris (at) oak (hyphen) wood (dot) co (dot) uk
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#
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# Parameters understood:
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#
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# config (required)
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# autoconf (optional - used by munin-node-configure)
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#
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# Config variables:
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#
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# ntpdc - path to ntpdc program
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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# Change log
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# v1.0.0 2009-03-11 Chris Hastie
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# initial release
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#
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#
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#
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# Magic markers - optional - used by installation scripts and
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# munin-node-configure:
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#
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#%# family=contrib
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#%# capabilities=autoconf
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#
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use strict;
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use Socket;
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my $NTPDC = $ENV{ntpdc} || "ntpdc";
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my $COMMAND = "$NTPDC -c sysstats";
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# autoconf
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if ($ARGV[0] and $ARGV[0] eq "autoconf") {
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`$NTPDC -c help >/dev/null 2>/dev/null`;
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if ($? eq "0") {
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if (`$NTPDC -c sysstats | wc -l` > 0) {
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print "yes\n";
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exit 0;
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} else {
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print "no (unable to list system stats)\n";
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exit 1;
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}
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} else {
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print "no (ntpdc not found)\n";
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exit 1;
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}
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}
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my $queries = 0;
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my $packrcv;
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my $packproc;
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# get data from tc
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open(SERVICE, "$COMMAND |")
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or die("Could not execute '$COMMAND': $!");
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while (<SERVICE>) {
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if (/^packets received:\s*(\d*)/) {
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$packrcv = $1;
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}
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if (/^packets processed:\s*(\d*)/) {
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$packproc = $1;
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}
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if (/^current version:\s*(\d*)/) {
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$queries += $1;
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}
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if (/^previous version:\s*(\d*)/) {
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$queries += $1;
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}
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if (/^bad version:\s*(\d*)/) {
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$queries += $1;
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}
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# if (/^access denied:\s*(\d*)/) {
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# $queries += $1;
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# }
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# if (/^bad length or format:\s*(\d*)/) {
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# $queries += $1;
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# }
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# if (/^bad authentication:\s*(\d*)/) {
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# $queries += $1;
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# }
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# if (/^rate exceeded:\s*(\d*)/) {
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# $queries += $1;
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# }
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}
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close(SERVICE);
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$queries = $queries - $packproc;
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# config
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if ($ARGV[0] and $ARGV[0] eq 'config') {
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print "graph_title NTP Queries\n";
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print "graph_args --base 1000\n";
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print "graph_vlabel qps\n";
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print "graph_category ntp\n";
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print "graph_info Queries to the NTP server\n";
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print "queries.label Queries per second\n";
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print "queries.type DERIVE\n";
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print "queries.min 0\n";
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exit 0;
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}
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# send output
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print "queries.value $queries\n";
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##################################
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=pod
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=head1 Description
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ntp_queries - A munin plugin to monitor queries handled by NTP
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=head1 Parameters understood:
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config (required)
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autoconf (optional - used by munin-node-configure)
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=head1 Configuration variables:
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All configuration parameters are optional
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ntpdc - path to ntpdc program
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=head1 Known issues
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=cut
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