Munin contributed plugins

#!/usr/bin/perl

# -*- perl -*-

=head1 NAME

lustre_df_inodes - Plugin to monitor Lustre 1.8.x (cluster FS) storage objects MDT,OST's 

usage inodes in percents

=head1 CONFIGURATION

Path to lfs binary. Configuration is done through $lfs_bin variable, for example

by default $lfs_bin = "/usr/bin/lfs", see below.

=head1 NOTES

Monitoring node - lustre client with mounted lustre

=head1 AUTHOR

Ropchan Sergey <fenix.serega@gmail.com>

=head1 LICENSE

GPLv2

=cut

use Munin::Plugin;

my $lfs_bin = "/usr/bin/lfs";

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

    if (-r $lfs_bin) {

	print "yes\n";

	exit 0;

    } else {

	print "no ($lfs_bin found)\n";

	exit 0;

    }

}

my @output = `$lfs_bin df -i`;

&print_values;

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

    print "graph_title Lustre cluster storage objects inodes usage in percent\n";

    print "graph_args --base 1000\n";

    print "graph_vlabel % usage\n";

    print "graph_scale no\n";

    print "graph_category lustre\n";

    &print_labels;

    exit 0;

}

sub print_labels {

    for $_ (@output) {

	#storage objects

        if (/^\S+\s+\S+\s+\S+\s+\S+\s+(\d+)\%\s+\S+\[(.*)\:(\d+)\]/i) {

		my $name = $2.$3;

                print $name.".label ", $name, "\n";

	        print $name.".min 0\n";

		print_thresholds($name,undef,undef,99,100);

        }

     }

                print "summary.label summary", "\n";

                print "summary.min 0\n";

                print_thresholds("summary",undef,undef,95,98);

}

sub print_values {

    for $_ (@output) {

	#storage objects

	if (/^\S+\s+\S+\s+\S+\s+\S+\s+(\d+)\%\s+\S+\[(.*)\:(\d+)\]/i) {

		my $name = $2.$3;

		print $name.".value ", $1, "\n";

        }

	#summanary info

	if (/^filesystem summary\:\s+\S+\s+\S+\s+\S+\s+(\d+)\%\s+\S+\s/i) {

		print "summary.value ", $1, "\n";

	}

    }

}