Munin contributed plugins

#!/usr/bin/perl -w

# Author : Alban Espie-Guillon <alban.espie@alterway.fr>

# Based on http://github.com/perusio/nginx-munin Author: António P. P. Almeida <appa@perusio.net>

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# copy of this software and associated documentation files (the "Software"),

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# and/or sell copies of the Software, and to permit persons to whom the

# Software is furnished to do so, subject to the following conditions:

# The above copyright notice and this permission notice shall be included in

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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR

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=head1 NAME

mongodb_ram - Munin plugin to show RAM used by mongodb.

=encoding utf8

=head1 APPLICABLE SYSTEMS

Any mongodb host

=head1 MAGIC MARKERS

  #%# family=auto

  #%# capabilities=autoconf

=head1 VERSION

1.0

=head1 BUGS

None known

=head1 AUTHOR

Based on a script by António P. P. Almeida <appa@perusio.net>. Modified by Alban Espie-Guillon <alban.espie@alterway.fr>

=head1 LICENSE

MIT

=cut

## Munin config method.

if (exists $ARGV[0] and $ARGV[0] eq "config") {

  print "graph_title Mongodb RAM usage\n";

  print "graph_vlabel RAM\n";

  print "graph_category db\n";

  print "graph_args --base 1024 -l 0 --upper-limit 4138442752\n";

  print "ram.label RAM\n";

  print "ram.type GAUGE\n";

  print "ram.draw AREASTACK\n";

  print "ram.min 0\n";

  exit 0;

} else {

  my $m = `ps u -p  \$(pidof mongod) | awk 'NR > 1 {nm += \$5} END {print nm*1024}'`;

  print "ram.value $m";

}