git.zerfleddert.de Git - upsgraph/blob - upsgraph.pl

   1 #!/usr/bin/perl -w
   2
   3 #Due to memory leak in Debian squeeze (Bug #545519)
   4 my $use_rrds = 0;
   5 my $rrd_result = 0;
   6
   7 if ((@ARGV != 1) && (@ARGV != 2)) {
   8         print STDERR "Syntax: ${0} configfile [uid]\n";
   9         exit(1);
  10 }
  11
  12 use Net::SNMP;
  13 use IO::Socket::INET;
  14 use IO::Select;
  15 use RRDs;
  16 use File::Copy;
  17 use Data::Dumper;
  18
  19 $UPSGRAPH::outdir = "";
  20 $UPSGRAPH::daysCovered = 370;
  21 $UPSGRAPH::step = 60;
  22 $UPSGRAPH::stepsPerHour = (60 * 60) / $UPSGRAPH::step;
  23 $UPSGRAPH::keep = ($UPSGRAPH::daysCovered*24*60*60)/$UPSGRAPH::step;
  24 $UPSGRAPH::keepHours = ($UPSGRAPH::daysCovered*24*60*60)/$UPSGRAPH::stepsPerHour/$UPSGRAPH::step;
  25 $UPSGRAPH::hosts = ();
  26 $UPSGRAPH::regenerateOnStart = 1; #when set, regenerate graphs on script startup
  27
  28 do $ARGV[0] or die "can't read config: $!";
  29
  30 my $outdir = $UPSGRAPH::outdir;
  31 my $step = $UPSGRAPH::step;
  32 my $stepsPerHour = $UPSGRAPH::stepsPerHour;
  33 my $keep = $UPSGRAPH::keep;
  34 my $keepHours = $UPSGRAPH::keepHours;
  35 my $hosts = $UPSGRAPH::hosts;
  36
  37 sub rrd_update(@) {
  38         my @args = @_;
  39
  40         if ($use_rrds == 1) {
  41                 RRDs::update(@args);
  42                 $rrd_result = RRDs::error;
  43         } else {
  44                 $rrd_result = system("rrdtool", "update", @args);
  45         }
  46 }
  47
  48 sub rrd_graph(@) {
  49         my @args = @_;
  50         my @rrd_out = ();
  51
  52         if ($use_rrds == 1) {
  53                 @rrd_out = RRDs::graph(@args);
  54                 $rrd_result = RRDs::error;
  55         } else {
  56                 my $rrd_stdout;
  57
  58                 open(RRDFD, '-|', 'rrdtool', 'graph', @args);
  59                 while(<RRDFD>) {
  60                         chomp;
  61                         $rrd_stdout = $_;
  62                 }
  63                 close(RRDFD);
  64                 $rrd_result = $?;
  65                 if ($rrd_result == 0) {
  66                         push @rrd_out, 0;
  67                         push @rrd_out, split(/x/, $rrd_stdout);
  68                 }
  69         }
  70
  71         return @rrd_out;
  72 }
  73
  74 sub rrdcreate(@) {
  75         my $newrrd = shift;
  76         my $field = shift;
  77         my $vars = shift;
  78         my $start = shift;
  79
  80         my @cmd = ("${newrrd}", "--step=${step}");
  81
  82         if (defined($start)) {
  83                 push @cmd, "--start=${start}";
  84         }
  85
  86         push @cmd, "DS:${field}:GAUGE:600:" .
  87                 $vars->{$field}->{'min'} . ":" .
  88                 $vars->{$field}->{'max'};
  89
  90         push @cmd, "RRA:AVERAGE:0.5:1:${keep}";
  91         push @cmd, "RRA:MIN:0.4:${stepsPerHour}:${keepHours}";
  92         push @cmd, "RRA:MAX:0.4:${stepsPerHour}:${keepHours}";
  93         push @cmd, "RRA:AVERAGE:0.5:${stepsPerHour}:${keepHours}";
  94
  95         RRDs::create(@cmd);
  96         if (RRDs::error) {
  97                 print "Error while creating: " . RRDs::error . "\n";
  98                 exit 1;
  99         }
 100 }
 101
 102 sub fetch_snmp(@) {
 103         my $address = shift;
 104         my $community = shift;
 105         my $oid = shift;
 106
 107         (my $session, my $error) = Net::SNMP->session(Hostname => $address,
 108                         Community => $community);
 109
 110         if (!$session) {
 111                 print STDERR "session error: $error";
 112                 return undef;
 113         }
 114
 115         $session->translate(0);
 116
 117         my $result = $session->get_request($oid);
 118
 119         $session->close;
 120
 121         return undef if (!defined($result));
 122
 123         $result->{$oid};
 124 }
 125
 126 sub fetch_tcp(@) {
 127         my $address = shift;
 128         my $port = shift;
 129
 130         my $sock = IO::Socket::INET->new(PeerAddr => $address,
 131                         PeerPort => $port,
 132                         Proto => 'tcp',
 133                         Timeout => 1);
 134
 135         return undef if (!$sock);
 136
 137         my $select = IO::Select->new($sock);
 138
 139         my $value = undef;
 140
 141         if ($select->can_read(1)) {
 142                 chomp($value) if (sysread($sock, $value, 4096) > 0);
 143         }
 144
 145         close($sock);
 146
 147         if (!$value) {
 148                 return undef;
 149         }
 150
 151         $value=~ s/\s//g;
 152
 153         $value;
 154 }
 155
 156 sub fetch_tcp_multi(@) {
 157         my $address = shift;
 158         my $port = shift;
 159         my $delimiter = shift;
 160         my %values;
 161
 162         my $sock = IO::Socket::INET->new(PeerAddr => $address,
 163                         PeerPort => $port,
 164                         Proto => 'tcp',
 165                         Timeout => 1);
 166
 167         return undef if (!$sock);
 168
 169         my $select = IO::Select->new($sock);
 170
 171         while($select->can_read(1)) {
 172                 if (sysread($sock, my $buf, 16384) > 0) {
 173                         $buf=~s/\r//g;
 174                         foreach my $line (split(/\n/, $buf)) {
 175                                 (my $key, my $value) = split(/${delimiter}/, $line);
 176                                 $value=~ s/\s//g;
 177                                 $values{$key} = $value;
 178                         }
 179                 } else {
 180                         last;
 181                 }
 182         }
 183
 184         close($sock);
 185
 186         %values;
 187 }
 188
 189 sub dayGraphFunc {
 190         my $dataSrc = shift;
 191         my $mode = shift;
 192         my $color = shift;
 193         my $label = shift;
 194         my $dataPoints = shift;
 195         my @args = ();
 196         push @args, "CDEF:prev${mode}1=PREV(${dataSrc})";
 197         for (my $i = 1; $i < $dataPoints - 1; ++$i) {
 198                 my $prev = $i;
 199                 my $next = $i+1;
 200                 push @args, "CDEF:prev${mode}${next}=PREV(prev${mode}${prev})";
 201         }
 202         my $dayCons = '';
 203         my $consFunc = '';
 204         if ($mode ne 'AVG') {
 205                 for (my $i = 1; $i < $dataPoints; ++$i) {
 206                         $dayCons .= "prev${mode}${i},";
 207                         $consFunc .= ",${mode}";
 208                 }
 209         } else {
 210                 for (my $i = 1; $i < $dataPoints; ++$i) {
 211                         $dayCons .= "prev${mode}${i},";
 212                 }
 213                 $consFunc = ",${dataPoints},${mode}";
 214         }
 215         push @args, "CDEF:day${mode}=${dayCons}${dataSrc}${consFunc}";
 216         push @args, "CDEF:fillCalDay${mode}0=COUNT,${dataPoints},%,0,EQ,day${mode},UNKN,IF";
 217         for (my $i = 1; $i < $dataPoints; ++$i) {
 218                 my $prev = $i-1;
 219                 my $next = $i;
 220                 push @args, "CDEF:fillCalDay${mode}${next}=PREV(fillCalDay${mode}${prev})";
 221         }
 222         my $fillPoint = '';
 223         my $if = '';
 224         for (my $i = 0; $i < $dataPoints; ++$i) {
 225                 $fillPoint .= "COUNT,${dataPoints},%,${i},EQ,fillCalDay${mode}${i},";
 226                 $if .= ",IF";
 227         }
 228         push @args, "CDEF:${mode}Curve=${fillPoint}UNKN${if}";
 229         my $forwardShift = (24*60*60) * ($dataPoints - 1) / $dataPoints;
 230         push @args, "SHIFT:${mode}Curve:-${forwardShift}";
 231         push @args, "LINE1:${mode}Curve#${color}:${label}";
 232         return \@args;
 233 }
 234
 235 sub cfgToGraphDef {
 236         my $cfg = shift;
 237         my $varname = shift;
 238         my $dpPerDay= shift;
 239         my @graphDef = ();
 240         foreach my $subGraph (@$cfg) {
 241                 if ($subGraph eq 'avg') {
 242                         push @graphDef, "LINE1:${varname}-avg#FF0000";
 243                 } elsif ($subGraph eq 'day-min') {
 244                         push @graphDef, @{dayGraphFunc("${varname}-min", 'MIN', '0000ff', 'Day Minimum Temperature', $dpPerDay)};
 245                 } elsif ($subGraph eq 'day-max') {
 246                         push @graphDef, @{dayGraphFunc("${varname}-max", 'MAX', '00ff00', 'Day Maximum Temperature', $dpPerDay)};
 247                 } elsif ($subGraph eq 'day-avg') {
 248                         push @graphDef, @{dayGraphFunc("${varname}-houravg", 'AVG', 'ff0000', 'Day Average Temperature', $dpPerDay)};
 249                 }
 250         }
 251         return \@graphDef;
 252 }
 253
 254 if ($> == 0) {
 255         if (@ARGV != 2) {
 256                 print STDERR "Running as root, please provide UID as 2th argument!\n";
 257                 exit(1);
 258         }
 259
 260         print "Running as root, switching to ".$ARGV[1]."\n";
 261         $< = $> = $ARGV[1];
 262 }
 263
 264 foreach my $host (@$hosts) {
 265         my $rrdfile = $host->{'rrdfile'};
 266
 267         foreach my $var (keys(%{$host->{'vars'}})) {
 268                 $host->{'vars'}->{$var}->{'min'} = 'U' if (!defined($host->{'vars'}->{$var}->{'min'}));
 269                 $host->{'vars'}->{$var}->{'max'} = 'U' if (!defined($host->{'vars'}->{$var}->{'max'}));
 270         }
 271
 272         if (-e "${rrdfile}") {
 273                 print "Reading old ${rrdfile} to preserve data...\n";
 274
 275                 my $rrdinfo = RRDs::info("${rrdfile}");
 276                 if (RRDs::error) {
 277                         print "Error while getting info: " . RRDs::error . "\n";
 278                         exit 1;
 279                 }
 280
 281                 (my $start, my $ostep, my $names, my $data) =
 282                         RRDs::fetch("${rrdfile}",
 283                                         "-s " . (time() - ($rrdinfo->{'rra[0].rows'} * $rrdinfo->{'step'})),
 284                                         "AVERAGE");
 285
 286                 if (RRDs::error) {
 287                         print "Error while fetching data: " . RRDs::error . "\n";
 288                         exit 1;
 289                 }
 290
 291                 foreach my $field (@$names) {
 292                         if (! -e "${rrdfile}.${field}") {
 293                                 rrdcreate("${rrdfile}.${field}",
 294                                         "${field}",
 295                                         $host->{'vars'},
 296                                         (${start}-${ostep}));
 297                         }
 298                 }
 299
 300                 my $pos = $start;
 301                 foreach my $line (@$data) {
 302                         foreach my $field (@$names) {
 303                                 my $val = shift (@$line);
 304                                 $val = 'U' if (!defined($val));
 305
 306                                 RRDs::update("${rrdfile}.${field}", "${pos}:${val}");
 307                                 if (RRDs::error) {
 308                                         print "Can't insert data: " . RRDs::error . "\n";
 309                                         exit 1;
 310                                 }
 311
 312                         }
 313
 314                         $pos += $ostep;
 315
 316                         if ((($pos-$start)/$ostep) == $#$data) {
 317                                 last;
 318                         }
 319                 }
 320
 321                 rename("${rrdfile}", "${rrdfile}.old") or die "Can't rename old file: $!\n";
 322         }
 323
 324         foreach my $field (@{$host->{'fields'}}) {
 325                 if (! -e "${rrdfile}.${field}") {
 326                         print "Creating ${rrdfile}.${field}...\n";
 327                         rrdcreate("${rrdfile}.${field}",
 328                                 "${field}",
 329                                 $host->{'vars'});
 330                 }
 331
 332                 my $rrdinfo = RRDs::info("${rrdfile}.${field}");
 333                 if (RRDs::error) {
 334                         print "Error while getting info: " . RRDs::error . "\n";
 335                         exit 1;
 336                 }
 337
 338                 my $limitsChanged = 0;
 339                 if (defined($rrdinfo->{"ds[${field}].min"})) {
 340                         if ($rrdinfo->{"ds[${field}].min"} ne $host->{'vars'}->{$field}->{'min'}) {
 341                                 $limitsChanged = 1;
 342                                 RRDs::tune("${rrdfile}.${field}","-i",$field.":".$host->{'vars'}->{$field}->{'min'});
 343                         }
 344                 } else {
 345                         if ($host->{'vars'}->{$field}->{'min'} ne 'U') {
 346                                 $limitsChanged = 1;
 347                                 RRDs::tune("${rrdfile}.${field}","-i",$field.":".$host->{'vars'}->{$field}->{'min'});
 348                         }
 349                 }
 350
 351                 if (RRDs::error) {
 352                         print "Error while setting min: " . RRDs::error . "\n";
 353                         exit 1;
 354                 }
 355
 356                 if (defined($rrdinfo->{"ds[${field}].max"})) {
 357                         if ($rrdinfo->{"ds[${field}].max"} ne $host->{'vars'}->{$field}->{'max'}) {
 358                                 $limitsChanged = 1;
 359                                 RRDs::tune("${rrdfile}.${field}","-a",$field.":".$host->{'vars'}->{$field}->{'max'});
 360                         }
 361                 } else {
 362                         if ($host->{'vars'}->{$field}->{'max'} ne 'U') {
 363                                 $limitsChanged = 1;
 364                                 RRDs::tune("${rrdfile}.${field}","-a",$field.":".$host->{'vars'}->{$field}->{'max'});
 365                         }
 366                 }
 367
 368                 if (RRDs::error) {
 369                         print "Error while setting max: " . RRDs::error . "\n";
 370                         exit 1;
 371                 }
 372
 373                 if ($rrdinfo->{'rra[0].rows'} != $keep ||
 374                         !defined($rrdinfo->{'rra[3].rows'}) || $rrdinfo->{'rra[3].rows'} != $keepHours ||
 375                         $limitsChanged == 1) {
 376
 377                         print "Resizing ${rrdfile}.${field} from " . $rrdinfo->{'rra[0].rows'} .
 378                                 " to ${keep} samples.\n";
 379
 380                         (my $start, my $ostep, my $names, my $data) =
 381                                 RRDs::fetch("${rrdfile}.${field}",
 382                                                 "-s " . (time() - ($rrdinfo->{'rra[0].rows'} * $rrdinfo->{'step'})),
 383                                                 "AVERAGE");
 384
 385                         if (RRDs::error) {
 386                                 print "Error while fetching data: " . RRDs::error . "\n";
 387                                 exit 1;
 388                         }
 389
 390                         rrdcreate("${rrdfile}.${field}.new",
 391                                 "${field}",
 392                                 $host->{'vars'},
 393                                 (${start}-${ostep}));
 394
 395                         print "Preserving data in file ${rrdfile}.${field} since " . localtime($start) . "\n";
 396
 397                         my $pos = $start;
 398                         foreach my $line (@$data) {
 399                                 my $vline = "${pos}";
 400
 401                                 foreach my $val (@$line) {
 402                                         $val = 'U' if (!defined($val));
 403                                         $vline .= ":${val}";
 404                                 }
 405                                 RRDs::update("${rrdfile}.${field}.new", $vline) or die "Can't insert data\n";
 406
 407                                 if (RRDs::error) {
 408                                         print "Error while updating: " . RRDs::error . "\n";
 409                                         exit 1;
 410                                 }
 411                                 $pos += $ostep;
 412
 413                                 if ((($pos-$start)/$ostep) == $#$data) {
 414                                         last;
 415                                 }
 416                         }
 417
 418                         rename("${rrdfile}.${field}", "${rrdfile}.${field}.old") or die "Can't rename old file: $!\n";
 419                         rename("${rrdfile}.${field}.new", "${rrdfile}.${field}") or die "Can't rename new file: $!\n";
 420
 421                         $rrdinfo = RRDs::info("${rrdfile}.${field}");
 422                         if (RRDs::error) {
 423                                 print "Error while getting info: " . RRDs::error . "\n";
 424                                 exit 1;
 425                         }
 426
 427                         if ($rrdinfo->{'rra[0].rows'} != $keep) {
 428                                 print "Failed!\n";
 429                                 exit 1;
 430                         }
 431                 }
 432         }
 433 }
 434
 435 my $child = fork();
 436
 437 die "fork failed!" if (!defined($child));
 438
 439 exit 0 if ($child != 0);
 440
 441 my $first = $UPSGRAPH::regenerateOnStart;
 442 while(1) {
 443         open(HTML, ">${outdir}/index.html.new");
 444
 445         print HTML '<html><head><meta http-equiv="refresh" content="60"/><meta http-equiv="cache-control" content="no-cache"/><meta http-equiv="pragma" content="no-cache"/><meta http_equiv="expires" content="Sat, 26 Jul 1997 05:00:00 GMT"/><title>Status</title></head>';
 446         print HTML '<body bgcolor="#ffffff">';
 447
 448         foreach my $host (@$hosts) {
 449                 print HTML "[<a href=\"#".${host}->{'name'}."\">".${host}->{'name'}."</a>]&nbsp;";
 450         }
 451         print HTML "<br>\n";
 452
 453         foreach my $host (@$hosts) {
 454                 print HTML "<br>\n";
 455                 print HTML "<a name=\"".${host}->{'name'}."\"></a>\n";
 456                 my $vars = $host->{'vars'};
 457                 my $rrdfile = $host->{'rrdfile'};
 458                 my $hostname = $host->{'name'};
 459                 my %multi_values = ();
 460
 461                 foreach my $var (@{$host->{'fields'}}) {
 462                         delete $vars->{$var}->{'value'};
 463
 464                         my $result;
 465
 466                         if ((!defined($vars->{$var}->{'proto'})) ||
 467                             ($vars->{$var}->{'proto'} eq '') ||
 468                             ($vars->{$var}->{'proto'} eq 'snmp')) {
 469                                 $result = fetch_snmp($host->{'address'}, $host->{'community'}, $vars->{$var}->{'oid'});
 470                         } elsif ($vars->{$var}->{'proto'} eq 'tcp') {
 471                                 $result = fetch_tcp($host->{'address'}, $vars->{$var}->{'port'});
 472                         } elsif ($vars->{$var}->{'proto'} eq 'tcp_multi') {
 473                                 if (defined($multi_values{$vars->{$var}->{'multi_id'}})) {
 474                                         $result = $multi_values{$vars->{$var}->{'multi_id'}}
 475                                 } else {
 476                                         my %values = fetch_tcp_multi($host->{'address'}, $vars->{$var}->{'port'}, $vars->{$var}->{'multi_delimiter'});
 477                                         @multi_values{keys %values} = values %values;
 478                                         $result = $multi_values{$vars->{$var}->{'multi_id'}};
 479                                 }
 480                         }
 481
 482                         next unless (defined $result);
 483
 484                         $vars->{$var}->{'value'} = $result;
 485                         if (defined($vars->{$var}->{'factor'})) {
 486                                 $vars->{$var}->{'value'} *= $vars->{$var}->{'factor'};
 487                         }
 488                 }
 489
 490                 foreach my $var (@{$host->{'fields'}}) {
 491                         if (!(defined($vars->{$var}->{'value'}))) {
 492                                 $vars->{$var}->{'value'} = 'U';
 493                         }
 494                         rrd_update("${rrdfile}.${var}", "N:" . $vars->{$var}->{'value'});
 495                 }
 496                 if ($rrd_result) {
 497                         print "Error while updating: " . $rrd_result . "\n";
 498                 }
 499
 500                 foreach my $var (@{$host->{'fields'}}) {
 501                         my $graphWidth = 365 * 3;
 502                         my $graphConfig;
 503                         if (defined $vars->{$var}->{'graph'}) {
 504                                 $graphConfig = $vars->{$var}->{'graph'};
 505                                 foreach my $subGraph (qw(day week year)) {
 506                                         if (!defined($graphConfig->{$subGraph})) {
 507                                                 $graphConfig->{$subGraph} = [ 'avg'];
 508                                         }
 509                                 }
 510                         } else {
 511                                 $graphConfig = {
 512                                         'day' =>  [ 'avg' ],
 513                                         'week' => [ 'avg' ],
 514                                         'year' => [ 'avg' ],
 515                                 };
 516                         }
 517
 518                         my @graphdef = ('-P', "-A", "-t", $hostname." - ".$vars->{$var}->{'name'});
 519                         push @graphdef, "--lazy" if !$first;
 520
 521                         push @graphdef, "DEF:${var}-avg=${rrdfile}.${var}:${var}:AVERAGE";
 522                         push @graphdef, "DEF:${var}-min=${rrdfile}.${var}:${var}:MIN";
 523                         push @graphdef, "DEF:${var}-max=${rrdfile}.${var}:${var}:MAX";
 524                         push @graphdef, "DEF:${var}-houravg=${rrdfile}.${var}:${var}:AVERAGE:step=3600";
 525                         push @graphdef, "LINE1:${var}-avg#FF0000";
 526                         push @graphdef, "VDEF:cur=${var}-avg,LAST";
 527                         push @graphdef, 'GPRINT:cur:Current\\: <span foreground="#FF0000">%.2lf</span>\\r';
 528
 529                         my $mtime;
 530                         $mtime=(stat("${outdir}/${hostname}.${var}.png.work"))[9];
 531
 532                         (my $averages, my $width, my $height) =
 533                                 rrd_graph("${outdir}/${hostname}.${var}.png.work",
 534                                                 "-w", "720", @graphdef);
 535
 536                         pop @graphdef;
 537                         pop @graphdef;
 538                         pop @graphdef;
 539
 540                         if ($rrd_result) {
 541                                 print "Error while graphing: " . $rrd_result . "\n";
 542                         } else {
 543                                 my $newmtime=(stat("${outdir}/${hostname}.${var}.png.work"))[9];
 544                                 if ((!defined($mtime)) || ($newmtime != $mtime)) {
 545                                         copy("${outdir}/${hostname}.${var}.png.work", "${outdir}/${hostname}.${var}.png.new");
 546                                         rename("${outdir}/${hostname}.${var}.png.new", "${outdir}/${hostname}.${var}.png");
 547                                 }
 548                         }
 549
 550                         print HTML "<a href=\"${hostname}.${var}.html\"><img src=\"${hostname}.${var}.png\" width=\"${width}\" height=\"${height}\" border=\"0\"></a><br>\n";
 551
 552                         open (HTML2, ">${outdir}/${hostname}.${var}.html.new");
 553                         print HTML2 '<html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"><meta http-equiv="refresh" content="60"/><meta http-equiv="cache-control" content="no-cache"/><meta http-equiv="pragma" content="no-cache"/><meta http_equiv="expires" content="Sat, 26 Jul 1997 05:00:00 GMT"/><title>' . $vars->{$var}->{'name'} . '</title></head>';
 554                         print HTML2 '<body bgcolor="#ffffff">';
 555
 556                         push @graphdef, "VDEF:min=${var}-min,MINIMUM";
 557                         push @graphdef, "GPRINT:min:Minimum\\: %.2lf";
 558
 559                         push @graphdef, "VDEF:avg=${var}-avg,AVERAGE";
 560                         push @graphdef, "GPRINT:avg:Average\\: %.2lf";
 561
 562                         push @graphdef, "VDEF:max=${var}-max,MAXIMUM";
 563                         push @graphdef, "GPRINT:max:Maximum\\: %.2lf";
 564
 565                         push @graphdef, "VDEF:cur=${var}-avg,LAST";
 566                         push @graphdef, "GPRINT:cur:Current\\: %.2lf";
 567
 568                         my @dayGraphDef = @graphdef;
 569                         push @dayGraphDef, @{cfgToGraphDef($graphConfig->{'day'}, ${var}, 24)};
 570
 571                         $mtime=(stat("${outdir}/${hostname}.${var}.long.png.work"))[9];
 572                         ($averages, $width, $height) =
 573                                 rrd_graph("${outdir}/${hostname}.${var}.long.png.work",
 574                                                 "-w", $graphWidth, @dayGraphDef);
 575
 576                         if ($rrd_result) {
 577                                 print "Error while graphing: " . $rrd_result . "\n";
 578                         } else {
 579                                 my $newmtime=(stat("${outdir}/${hostname}.${var}.long.png.work"))[9];
 580                                 if ((!defined($mtime)) || ($newmtime != $mtime)) {
 581                                         copy("${outdir}/${hostname}.${var}.long.png.work", "${outdir}/${hostname}.${var}.long.png.new");
 582                                         rename("${outdir}/${hostname}.${var}.long.png.new", "${outdir}/${hostname}.${var}.long.png");
 583                                 }
 584                         }
 585
 586                         print HTML2 "<img src=\"${hostname}.${var}.long.png\" width=\"${width}\" height=\"${height}\"><br>\n";
 587
 588                         $mtime=(stat("${outdir}/${hostname}.${var}.week.png.work"))[9];
 589
 590                         my @weekGraphDef = @graphdef;
 591                         push @weekGraphDef, @{cfgToGraphDef($graphConfig->{'week'}, ${var}, 24)};
 592
 593                         ($averages, $width, $height) =
 594                                 rrd_graph("${outdir}/${hostname}.${var}.week.png.work",
 595                                                 "-w", "$graphWidth", "-e", "now", "-s", "00:00-8d", @weekGraphDef);
 596
 597                         if ($rrd_result) {
 598                                 print "Error while graphing: " . $rrd_result . "\n";
 599                         } else {
 600                                 my $newmtime=(stat("${outdir}/${hostname}.${var}.week.png.work"))[9];
 601                                 if ((!defined($mtime)) || ($newmtime != $mtime)) {
 602                                         copy("${outdir}/${hostname}.${var}.week.png.work", "${outdir}/${hostname}.${var}.week.png.new");
 603                                         rename("${outdir}/${hostname}.${var}.week.png.new", "${outdir}/${hostname}.${var}.week.png");
 604                                 }
 605                         }
 606
 607                         print HTML2 "<img src=\"${hostname}.${var}.week.png\" width=\"${width}\" height=\"${height}\"><br>\n";
 608
 609                         $mtime=(stat("${outdir}/${hostname}.${var}.year.png.work"))[9];
 610
 611                         my @yearGraphDef = @graphdef;
 612                         push @yearGraphDef, @{cfgToGraphDef($graphConfig->{'year'}, ${var}, 3)};
 613
 614                         ($averages, $width, $height) =
 615                                 rrd_graph("${outdir}/${hostname}.${var}.year.png.work",
 616                                                 "-w", "$graphWidth", "-e", "00:00", "-s", "end-365d", @yearGraphDef);
 617
 618                         if ($rrd_result) {
 619                                 print "Error while graphing: " . $rrd_result . "\n";
 620                         } else {
 621                                 my $newmtime=(stat("${outdir}/${hostname}.${var}.year.png.work"))[9];
 622                                 if ((!defined($mtime)) || ($newmtime != $mtime)) {
 623                                         copy("${outdir}/${hostname}.${var}.year.png.work", "${outdir}/${hostname}.${var}.year.png.new");
 624                                         rename("${outdir}/${hostname}.${var}.year.png.new", "${outdir}/${hostname}.${var}.year.png");
 625                                 }
 626                         }
 627
 628                         print HTML2 "<img src=\"${hostname}.${var}.year.png\" width=\"${width}\" height=\"${height}\"><br>\n";
 629
 630                         print HTML2 "</body></html>\n";
 631                         close(HTML2);
 632                         rename("${outdir}/${hostname}.${var}.html.new", "${outdir}/${hostname}.${var}.html");
 633                 }
 634         }
 635
 636         print HTML "</body></html>\n";
 637         print HTML "<br>Generated on: " . localtime(time());
 638         print HTML ' by <a href="http://git.zerfleddert.de/cgi-bin/gitweb.cgi/upsgraph">upsgraph</a>.';
 639
 640         close(HTML);
 641
 642         rename("${outdir}/index.html.new", "${outdir}/index.html");
 643
 644         sleep(${step}/2);
 645         $first = 0;
 646 }