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#!/usr/bin/perl -w |
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use strict; |
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use Getopt::Long; |
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|
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my $interface="lo"; |
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my $dpmqryconf="/opt/lcg/bin/dpm-qryconf"; |
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my $gmetric="/usr/bin/gmetric"; |
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my $verbose=0; |
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|
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my $opt_scommand; |
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my $opt_gmetric; |
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my %opt; |
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my @optdef=qw( scommand=s gmetric=s verbose ); |
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|
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$Getopt::Long::ignorecase=0; |
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&GetOptions(\%opt, @optdef) or die "\n"; |
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$opt{"dpmqryconf"} and $dpmqryconf=$opt{"dpmqryconf"}; |
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$opt{"gmetric"} and $gmetric=$opt{"gmetric"}; |
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$opt{"verbose"} and $verbose=1; |
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|
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# scaling of SI units to GB = 1e9 bytes |
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my %scale_factor = ( k => 1e-6, M => 1e-3, G => 1., T => 1e3, P => 1e6 ); |
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|
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# |
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# Wrapper around the system call to gmetric |
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# Allows to view the results on STDOUT if verbose output was requested |
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# |
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# Arguments: |
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# type string with value { float, double, string, (u)int(8|16|32) } |
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# name string |
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# unit string, may be empty |
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# value string |
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# |
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sub publish() { |
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my ($type, $name, $unit, $value) = @_; |
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|
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# substitute / by - because the slash cannot be used in the |
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# name of the rrd file |
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$name =~ tr!/!-!; |
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|
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if ($verbose) { |
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if ($type eq 'float' or $type eq 'double') { |
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printf "%-24s %24.3f %-s\n", $name, $value, $unit; |
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} |
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elsif ($type eq 'string') { |
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printf "%-24s %24s %-s\n", $name, $value, $unit; |
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$value = "\"$value\""; # in-place substitution of $value |
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} |
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else { # must be some kind of int or uint |
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printf "%-24s %24d %-s\n", $name, $value, $unit; |
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} |
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} |
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|
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$unit = ($unit ? "-u \"$unit\"" : ""); # in-place substitution of $unit |
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system("$gmetric -t $type -n \"$name\" -v $value $unit"); |
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} |
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|
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|
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sub get_scale() { |
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my $unit = shift; |
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my $factor = $scale_factor{$unit} or |
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die "Invalid scaling factor $unit\n"; |
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return($factor); |
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} |
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|
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############################################################################## |
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# output of dpm-qryconf |
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# |
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|
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my $cmd = "DPNS_CONRETRY=0 $dpmqryconf --si "; |
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my @out = `$cmd`; |
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|
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|
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# gather data per pool |
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my $poolname; |
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my %pool; |
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foreach my $line ( @out ) { |
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if ( $line =~ /^POOL (\w+) / ) { |
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$poolname = $1; |
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$pool{$poolname}{capacity} = 0; |
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$pool{$poolname}{free} = 0; |
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$pool{$poolname}{used} = 0; |
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} |
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elsif ( $line =~ /^\s+CAPACITY (\d+\.\d+)([kMGTP]) FREE (\d+\.\d+)([kMGTP])/ ) { |
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$pool{$poolname}{capacity} = $1 * &get_scale($2); |
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} |
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elsif ( $line =~ /CAPACITY (\d+\.\d+)([kMGTP]) FREE (\d+\.\d+)([kMGTP])/ ) { |
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$pool{$poolname}{used} += $1 * &get_scale($2) - $3 * &get_scale($4); |
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} |
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} |
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|
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|
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# calculate global totals and publish data |
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my $total_capacity = 0; |
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my $total_free = 0; |
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my $total_used = 0; |
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foreach my $pn ( sort keys %pool ) { |
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$pool{$pn}{free} = $pool{$pn}{capacity} - $pool{$pn}{used}; |
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|
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# combine per-pool data in totals |
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$total_capacity += $pool{$pn}{capacity}; |
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$total_free += $pool{$pn}{free}; |
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$total_used += $pool{$pn}{used}; |
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|
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# publish to Ganglia |
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&publish('double', "pool-$pn-capacity", "GB", $pool{$pn}{capacity}); |
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&publish('double', "pool-$pn-free", "GB", $pool{$pn}{free}); |
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&publish('double', "pool-$pn-used", "GB", $pool{$pn}{used}); |
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} |
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|
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# publish totals to Ganglia |
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&publish('double', "DPM-capacity", "GB", $total_capacity); |
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&publish('double', "DPM-free", "GB", $total_free); |
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&publish('double', "DPM-used", "GB", $total_used); |
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