undefine limits if they are not set

[upsgraph] / upsgraph.pl

diff --git a/upsgraph.pl b/upsgraph.pl
index 91ae5adb99c055bf04f5e0b8e0ca4a876240e8a4..c61b6c0bbad27d56004498dfa452571642fed401 100755 (executable)
--- a/upsgraph.pl
+++ b/upsgraph.pl
@@ -107,6 +107,11 @@ if ($> == 0) {
 foreach my $host (@$hosts) {
        my $rrdfile = $host->{'rrdfile'};
 
+       foreach my $var (keys(%{$host->{'vars'}})) {
+               $host->{'vars'}->{$var}->{'min'} = 'U' if (!defined($host->{'vars'}->{$var}->{'min'}));
+               $host->{'vars'}->{$var}->{'max'} = 'U' if (!defined($host->{'vars'}->{$var}->{'max'}));
+       }
+
        if (-e "${rrdfile}") {
                print "Reading old ${rrdfile} to preserve data...\n";
 
@@ -190,7 +195,6 @@ foreach my $host (@$hosts) {
 
                if (defined($rrdinfo->{"ds[${field}].max"})) {
                        if ($rrdinfo->{"ds[${field}].max"} ne $host->{'vars'}->{$field}->{'max'}) {
-                               print "Max differs\n";
                                RRDs::tune("${rrdfile}.${field}","-a",$field.":".$host->{'vars'}->{$field}->{'max'});
                        }
                } else {