BackupPC verification helper
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3.6 KiB

#!/usr/bin/perl
use lib "/usr/share/BackupPC/lib";
use BackupPC::Lib;
use POSIX;
use JSON;
use Getopt::Long;
use Statistics::Descriptive;
use Data::Dumper;
my $host = undef;
GetOptions(
"host=s" => \$host
);
# We need to switch to backuppc UID/GID
my $uid = getuid();
my $gid = getgid();
my (undef,undef,$bkpuid,$bkpgid) = getpwnam('backuppc');
setuid($bkpuid) if ($uid ne $bkpuid);
setgid($bkpgid) if ($gid ne $bkpgid);
my $bpc = BackupPC::Lib->new();
my $mainConf = $bpc->ConfigDataRead();
my $json = {};
if ( $host ) {
my $hostConf = $bpc->ConfigDataRead($host);
my $conf = { %$mainConf, %$hostConf };
my $age = -1;
$json = {
bkp => 0,
last_age => 0,
errors => 0,
new_size => 0,
new_size_avg => 0,
new_size_median => 0,
new_size_q1 => 0,
new_size_q3 => 0
};
my @bpc_info = $bpc->BackupInfoRead($host);
my $sizes = new Statistics::Descriptive::Full;
if ( scalar( @bpc_info ) ){
foreach my $backup ( @bpc_info ) {
# Skip partial or active backups
next if ( $backup->{type} !~ m/^full|incr$/ );
if ( $backup->{type} eq "full" ) {
$last_full_num = $backup->{num};
}
# Push all the sizes in our data set to compute avg sizes
# Exclude backup N°0 as it'll always have much more new data than normal backups
$sizes->add_data($backup->{sizeNew}) unless ( $backup->{num} == 0 );
$json->{bkp}++;
}
# Ignore the last backup if it's not full or incr (which means it's either partial or active)
my $i = ( $bpc_info[-1]->{type} =~ m/^full|incr$/ ) ? -1 : -2;
$json->{errors} = $bpc_info[$i]->{xferErrs};
$json->{new_size} = $bpc_info[$i]->{sizeNew};
$json->{new_size_avg} = int $sizes->mean;
$json->{new_size_median} = int $sizes->median;
$json->{new_size_q1} = eval { int $sizes->quantile(1) } || 0;
$json->{new_size_q3} = eval { int $sizes->quantile(3) } || 0;
$json->{age} = time - $bpc_info[$i]->{startTime};
$json->{last_age} = sprintf("%.1f", ($json->{age}) / 84600);
}
}
else {
print<<"EOF";
Usage: $0 --host=<host>
EOF
}
# Print results
print("\n----------------\n");
print("Last Backup : $json->{last_age}");
print("\n");
print("Errors : $json->{errors}");
print("\n");
print("Size Consistency : ");
# TOO BIG ?
my $toobig = "1";
if ( $json->{new_size} > ($json->{new_size_q3} + $json->{new_size_q3} - $json->{new_size_q1}) * 1.5 or $json->{new_size} > $json->{new_size_avg} * 6 ) {
$toobig = "1";
}
else {
$toobig = "0";
}
# TOO SMALL ?
my $toosmall = "1";
if ( $json->{new_size} < ($json->{new_size_q1} - $json->{new_size_q3} - $json->{new_size_q1}) * 1.5 or $json->{new_size} < $json->{new_size_avg} / 3 ) {
$toosmall = "1";
}
else {
$toosmall = "0";
}
# Print result
if ( $toobig or $toosmall ) {
print("ANOMALOUS");
}
else {
print("Normal");
}
print("\n");
print("Random file : ");
# Random file
print("Random file");
print("\n");
print("Path to chech : /var/lib/BackupPC/pc/localhost/$host/$last_full_num/");
print("\n----------------\n");
# Debug
print("\n----------------\n");
print("DEBUG");
print("\n");
print("last_full_num : $last_full_num");
print("\n");
print("new_size : $json->{new_size}");
print("\n");
print("new_size_q1 : $json->{new_size_q1}");
print("\n");
print("new_size_q3 : $json->{new_size_q3}");
print("\n");
print("new_size_avg : $json->{new_size_avg}");
print("\n");
print("toobig : $toobig");
print("\n");
print("toosmall : $toosmall");
print("\n----------------\n");
# /Debug
exit(0);