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186 lines
6.4 KiB
186 lines
6.4 KiB
#!/usr/bin/perl
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use lib "/usr/share/BackupPC/lib";
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use lib "/usr/share/backuppc/lib";
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use lib "/usr/local/BackupPC/lib";
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use BackupPC::Lib;
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use BackupPC::CGI::Lib;
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use POSIX;
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use JSON;
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use Getopt::Long;
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use Statistics::Descriptive;
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use Data::Dumper;
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my $general = 0;
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my $host = undef;
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my $entity = undef;
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my $pretty = 0;
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GetOptions(
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"general" => \$general,
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"host=s" => \$host,
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"entity=s" => \$entity,
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"pretty" => \$pretty
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);
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# We need to switch to backuppc UID/GID
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my $uid = getuid();
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my $gid = getgid();
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my (undef,undef,$bkpuid,$bkpgid) = getpwnam('backuppc');
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setuid($bkpuid) if ($uid ne $bkpuid);
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setgid($bkpgid) if ($gid ne $bkpgid);
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my $bpc = BackupPC::Lib->new();
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my $mainConf = $bpc->ConfigDataRead();
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my $json = {};
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if ( $host ) {
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my $hostConf = $bpc->ConfigDataRead($host);
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my $conf = { %$mainConf, %$hostConf };
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$json = {
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bkp => 0,
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full_size => 0,
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total_size => 0,
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history_size => 0,
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errors => 0,
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new_size => 0,
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new_size_avg => 0,
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new_size_median => 0,
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new_size_q1 => 0,
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new_size_q3 => 0,
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duration => 0,
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comp_ratio => 0,
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enabled => 0,
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max_errors => 0,
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age => 0,
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type => 'none'
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};
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my $new_size_of_last_full = 0;
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my @bpc_info = $bpc->BackupInfoRead($host);
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my $sizes = new Statistics::Descriptive::Full;
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if ( scalar( @bpc_info ) ){
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foreach my $backup ( @bpc_info ) {
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# Skip partial or active backups
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next if ( $backup->{type} !~ m/^full|incr$/ );
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if ( $backup->{type} eq "full" ) {
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$json->{full_size} = $backup->{size};
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$new_size_of_last_full = $backup->{sizeNew} if $backup->{num} > 0;
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}
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# Push all the sizes in our data set to compute avg sizes
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# Exclude backup N°0 as it'll always have much more new data than normal backups
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# Also exclude if size is not defined. This can happen in BackupPC v3 when
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# the BackupPC_link process is waiting for the nightly to finish
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$sizes->add_data($backup->{sizeNew}) if ( $backup->{num} > 0 && $backup->{sizeNew} );
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$json->{bkp}++;
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}
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# Ignore the last backup if it's not full or incr (which means it's either partial or active)
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my $i = ( $bpc_info[-1]->{type} =~ m/^full|incr$/ ) ? -1 : -2;
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$json->{errors} = $bpc_info[$i]->{xferErrs};
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$json->{duration} = $bpc_info[$i]->{endTime} - $bpc_info[$i]->{startTime};
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$json->{type} = $bpc_info[$i]->{type};
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$json->{new_size_avg} = int $sizes->mean;
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$json->{new_size_median} = int $sizes->median;
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# Some old versions of Statistics::Descriptive (eg, on el5) do not support quantile
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$json->{new_size_q1} = eval { int $sizes->quantile(1) } || 0;
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$json->{new_size_q3} = eval { int $sizes->quantile(3) } || 0;
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$json->{enabled} = ( $conf->{BackupsDisable} > 0 ) ? 0 : 1;
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$json->{total_size} = $sizes->sum + $json->{full_size} - $new_size_of_last_full;
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$json->{history_size} = $json->{total_size} - $json->{full_size};
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$json->{age} = time - $bpc_info[$i]->{startTime};
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# For sizeNew, we need to wait for BackupPC_link to run, which can be delayed
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# if a nightly process is running. In this case, use the stats from the previous backup
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# Except when we ave a single backup, in which case we read stats of this only backup
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$i = ( $bpc_info[-1]->{sizeNew} || scalar @bpc_info == 1 ) ? -1 : -2;
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$json->{new_size} = $bpc_info[$i]->{sizeNew};
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$json->{comp_ratio} = ( $bpc_info[$i]->{sizeNew} > 0 ) ?
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sprintf( "%.2f", 100 - ( $bpc_info[$i]->{sizeNewComp} * 100 / $bpc_info[$i]->{sizeNew} ) )
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:
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0;
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$json->{max_errors} = $conf->{MaxXferError} || 0;
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}
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} elsif ( $entity or $general) {
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$json = {
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perf => 0,
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size => 0,
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full_size => 0,
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total_size => 0,
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history_size => 0,
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hosts => 0,
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bkp => 0,
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ratio => 0
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};
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my $entity_total_new = 0;
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my $entity_total_comp = 0;
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foreach my $host ( keys %{ $bpc->HostInfoRead } ) {
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next unless ($host =~ m/^(vm_)?\Q$entity\E_.*/ or $general);
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my $full_size;
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$json->{hosts}++;
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my $hostConf = $bpc->ConfigDataRead($host);
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my $conf = { %$mainConf, %$hostConf };
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my $freq = ( $conf->{FullPeriod} > $conf->{IncrPeriod} ) ? $conf->{IncrPeriod} : $conf->{FullPeriod};
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my $host_duration = 0;
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my $host_bkp_num = 0;
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my $host_new_size = 0;
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my $host_full_size = 0;
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my $host_new_size_of_last_full = 0;
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foreach my $backup ( $bpc->BackupInfoRead( $host ) ) {
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next if ( $backup->{type} !~ m/^full|incr$/ );
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# Save the total size of the last full backup
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if ( $backup->{type} eq 'full' ) {
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$host_full_size = $backup->{size};
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$host_new_size_of_last_full = $backup->{sizeNew} if $backup->{num} > 0;
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}
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$host_new_size += $backup->{sizeNew} if ( $backup->{num} > 0 && $backup->{sizeNew} );
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$entity_total_new += $backup->{sizeNew};
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$entity_total_comp += $backup->{sizeNewComp};
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$host_duration += $backup->{endTime} - $backup->{startTime};
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$host_bkp_num++;
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$json->{bkp}++;
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}
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# Compute the average cost as the number of hours per day spent
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# to backup this host
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$json->{perf} += ( $host_bkp_num > 0 ) ? $host_duration / ( 3600 * $host_bkp_num * $freq ) : 0;
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# $json->{size} represents the total size used by this host.
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# But we want to substract the new size of the last full, as for this one we
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# do not count sizeNew but size
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my $host_total_size = $host_new_size + $host_full_size - $host_new_size_of_last_full;
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# This one is kept just for compatibility. New Zabbix template will use total_size
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$json->{size} += $host_total_size;
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$json->{total_size} += $host_total_size;
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$json->{full_size} += $host_full_size;
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$json->{history_size} += $host_total_size - $host_full_size;
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}
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$json->{ratio} = ( $entity_total_new > 0 ) ? 100 - ( $entity_total_comp * 100 / $entity_total_new ) : 0;
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# Round some values
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foreach my $key ( qw(ratio perf) ) {
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$json->{$key} = sprintf( "%.2f", $json->{$key} );
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}
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} else {
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print<<"EOF";
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Usage: $0 --host=<host> or --entity=<entity>
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EOF
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}
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print to_json( $json, { pretty => $pretty } );
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exit(0);
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