Add appropriate MIN/MAX RRAs to rrd files on creation and trigger recreation, if...
[upsgraph] / upsgraph.pl
CommitLineData
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1#!/usr/bin/perl -w
2
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3#Due to memory leak in Debian squeeze (Bug #545519)
4my $use_rrds = 0;
5my $rrd_result = 0;
6
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7if ((@ARGV != 1) && (@ARGV != 2)) {
8 print STDERR "Syntax: ${0} configfile [uid]\n";
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9 exit(1);
10}
11
1c9fb9df 12use Net::SNMP;
0e572cdc 13use IO::Socket::INET;
3679b927 14use IO::Select;
e5da3876 15use RRDs;
e26b065f 16use File::Copy;
e5da3876 17use Data::Dumper;
e18c93b3 18
1c9fb9df 19$UPSGRAPH::outdir = "";
3d7df03f 20$UPSGRAPH::daysCovered = 370;
1c9fb9df 21$UPSGRAPH::step = 60;
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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;
6c1071ee 25$UPSGRAPH::hosts = ();
e18c93b3 26
1c9fb9df 27do $ARGV[0] or die "can't read config: $!";
e18c93b3 28
1c9fb9df 29my $outdir = $UPSGRAPH::outdir;
1c9fb9df 30my $step = $UPSGRAPH::step;
3d7df03f 31my $stepsPerHour = $UPSGRAPH::stepsPerHour;
e5da3876 32my $keep = $UPSGRAPH::keep;
3d7df03f 33my $keepHours = $UPSGRAPH::keepHours;
6c1071ee 34my $hosts = $UPSGRAPH::hosts;
e18c93b3 35
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36sub rrd_update(@) {
37 my @args = @_;
38
39 if ($use_rrds == 1) {
40 RRDs::update(@args);
41 $rrd_result = RRDs::error;
42 } else {
43 $rrd_result = system("rrdtool", "update", @args);
44 }
45}
46
47sub rrd_graph(@) {
48 my @args = @_;
49 my @rrd_out = ();
50
51 if ($use_rrds == 1) {
52 @rrd_out = RRDs::graph(@args);
53 $rrd_result = RRDs::error;
54 } else {
55 my $rrd_stdout;
56
57 open(RRDFD, '-|', 'rrdtool', 'graph', @args);
58 while(<RRDFD>) {
59 chomp;
60 $rrd_stdout = $_;
61 }
62 close(RRDFD);
63 $rrd_result = $?;
64 if ($rrd_result == 0) {
65 push @rrd_out, 0;
66 push @rrd_out, split(/x/, $rrd_stdout);
67 }
68 }
69
70 return @rrd_out;
71}
72
e5da3876 73sub rrdcreate(@) {
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74 my $newrrd = shift;
75 my $field = shift;
6c1071ee 76 my $vars = shift;
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77 my $start = shift;
78
21377f43 79 my @cmd = ("${newrrd}", "--step=${step}");
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80
81 if (defined($start)) {
82 push @cmd, "--start=${start}";
83 }
84
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85 push @cmd, "DS:${field}:GAUGE:600:" .
86 $vars->{$field}->{'min'} . ":" .
f447c2a1 87 $vars->{$field}->{'max'};
21377f43 88
e5da3876 89 push @cmd, "RRA:AVERAGE:0.5:1:${keep}";
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90 push @cmd, "RRA:MIN:0.4:${stepsPerHour}:${keepHours}";
91 push @cmd, "RRA:MAX:0.4:${stepsPerHour}:${keepHours}";
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92
93 RRDs::create(@cmd);
94 if (RRDs::error) {
95 print "Error while creating: " . RRDs::error . "\n";
96 exit 1;
97 }
98}
99
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100sub fetch_snmp(@) {
101 my $address = shift;
102 my $community = shift;
103 my $oid = shift;
e5da3876 104
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105 (my $session, my $error) = Net::SNMP->session(Hostname => $address,
106 Community => $community);
e18c93b3 107
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108 if (!$session) {
109 print STDERR "session error: $error";
e0acc35a 110 return undef;
0e572cdc 111 }
e5da3876 112
6c1071ee 113 $session->translate(0);
e5da3876 114
0e572cdc 115 my $result = $session->get_request($oid);
e5da3876 116
6c1071ee 117 $session->close;
21377f43 118
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119 return undef if (!defined($result));
120
121 $result->{$oid};
122}
123
124sub fetch_tcp(@) {
125 my $address = shift;
126 my $port = shift;
127
128 my $sock = IO::Socket::INET->new(PeerAddr => $address,
129 PeerPort => $port,
130 Proto => 'tcp',
131 Timeout => 1);
132
133 return undef if (!$sock);
134
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135 my $select = IO::Select->new($sock);
136
137 my $value = undef;
138
139 if ($select->can_read(1)) {
140 chomp($value) if (sysread($sock, $value, 4096) > 0);
141 }
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142
143 close($sock);
144
145 if (!$value) {
146 return undef;
147 }
148
149 $value=~ s/\s//g;
150
151 $value;
6c1071ee 152}
e5da3876 153
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154sub fetch_tcp_multi(@) {
155 my $address = shift;
156 my $port = shift;
157 my $delimiter = shift;
158 my %values;
159
160 my $sock = IO::Socket::INET->new(PeerAddr => $address,
161 PeerPort => $port,
162 Proto => 'tcp',
163 Timeout => 1);
164
165 return undef if (!$sock);
166
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167 my $select = IO::Select->new($sock);
168
169 while($select->can_read(1)) {
170 if (sysread($sock, my $buf, 16384) > 0) {
171 $buf=~s/\r//g;
172 foreach my $line (split(/\n/, $buf)) {
173 (my $key, my $value) = split(/${delimiter}/, $line);
174 $value=~ s/\s//g;
175 $values{$key} = $value;
176 }
177 } else {
178 last;
179 }
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180 }
181
182 close($sock);
183
184 %values;
185}
186
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187if ($> == 0) {
188 if (@ARGV != 2) {
189 print STDERR "Running as root, please provide UID as 2th argument!\n";
190 exit(1);
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191 }
192
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193 print "Running as root, switching to ".$ARGV[1]."\n";
194 $< = $> = $ARGV[1];
21377f43 195}
e5da3876 196
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197foreach my $host (@$hosts) {
198 my $rrdfile = $host->{'rrdfile'};
21377f43 199
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200 foreach my $var (keys(%{$host->{'vars'}})) {
201 $host->{'vars'}->{$var}->{'min'} = 'U' if (!defined($host->{'vars'}->{$var}->{'min'}));
202 $host->{'vars'}->{$var}->{'max'} = 'U' if (!defined($host->{'vars'}->{$var}->{'max'}));
203 }
204
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205 if (-e "${rrdfile}") {
206 print "Reading old ${rrdfile} to preserve data...\n";
e5da3876 207
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208 my $rrdinfo = RRDs::info("${rrdfile}");
209 if (RRDs::error) {
210 print "Error while getting info: " . RRDs::error . "\n";
211 exit 1;
212 }
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213
214 (my $start, my $ostep, my $names, my $data) =
6c1071ee 215 RRDs::fetch("${rrdfile}",
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216 "-s " . (time() - ($rrdinfo->{'rra[0].rows'} * $rrdinfo->{'step'})),
217 "AVERAGE");
218
219 if (RRDs::error) {
220 print "Error while fetching data: " . RRDs::error . "\n";
221 exit 1;
222 }
223
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224 foreach my $field (@$names) {
225 if (! -e "${rrdfile}.${field}") {
226 rrdcreate("${rrdfile}.${field}",
227 "${field}",
228 $host->{'vars'},
229 (${start}-${ostep}));
230 }
231 }
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232
233 my $pos = $start;
234 foreach my $line (@$data) {
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235 foreach my $field (@$names) {
236 my $val = shift (@$line);
21377f43 237 $val = 'U' if (!defined($val));
21377f43 238
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239 RRDs::update("${rrdfile}.${field}", "${pos}:${val}");
240 if (RRDs::error) {
241 print "Can't insert data: " . RRDs::error . "\n";
242 exit 1;
243 }
244
21377f43 245 }
6c1071ee 246
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247 $pos += $ostep;
248
249 if ((($pos-$start)/$ostep) == $#$data) {
250 last;
251 }
252 }
253
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254 rename("${rrdfile}", "${rrdfile}.old") or die "Can't rename old file: $!\n";
255 }
21377f43 256
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257 foreach my $field (@{$host->{'fields'}}) {
258 if (! -e "${rrdfile}.${field}") {
259 print "Creating ${rrdfile}.${field}...\n";
260 rrdcreate("${rrdfile}.${field}",
261 "${field}",
262 $host->{'vars'});
263 }
264
265 my $rrdinfo = RRDs::info("${rrdfile}.${field}");
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266 if (RRDs::error) {
267 print "Error while getting info: " . RRDs::error . "\n";
268 exit 1;
269 }
270
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271 if (defined($rrdinfo->{"ds[${field}].min"})) {
272 if ($rrdinfo->{"ds[${field}].min"} ne $host->{'vars'}->{$field}->{'min'}) {
273 RRDs::tune("${rrdfile}.${field}","-i",$field.":".$host->{'vars'}->{$field}->{'min'});
274 }
275 } else {
276 if ($host->{'vars'}->{$field}->{'min'} ne 'U') {
277 RRDs::tune("${rrdfile}.${field}","-i",$field.":".$host->{'vars'}->{$field}->{'min'});
278 }
279 }
280
281 if (RRDs::error) {
282 print "Error while setting min: " . RRDs::error . "\n";
283 exit 1;
284 }
285
286 if (defined($rrdinfo->{"ds[${field}].max"})) {
287 if ($rrdinfo->{"ds[${field}].max"} ne $host->{'vars'}->{$field}->{'max'}) {
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288 RRDs::tune("${rrdfile}.${field}","-a",$field.":".$host->{'vars'}->{$field}->{'max'});
289 }
290 } else {
291 if ($host->{'vars'}->{$field}->{'max'} ne 'U') {
292 RRDs::tune("${rrdfile}.${field}","-a",$field.":".$host->{'vars'}->{$field}->{'max'});
293 }
294 }
295
296 if (RRDs::error) {
297 print "Error while setting max: " . RRDs::error . "\n";
298 exit 1;
299 }
300
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301 if ($rrdinfo->{'rra[0].rows'} != $keep ||
302 !defined($rrdinfo->{'rra[1].rows'}) || $rrdinfo->{'rra[1].rows'} != $keepHours) {
303
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304 print "Resizing ${rrdfile}.${field} from " . $rrdinfo->{'rra[0].rows'} .
305 " to ${keep} samples.\n";
e18c93b3 306
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307 (my $start, my $ostep, my $names, my $data) =
308 RRDs::fetch("${rrdfile}.${field}",
309 "-s " . (time() - ($rrdinfo->{'rra[0].rows'} * $rrdinfo->{'step'})),
310 "AVERAGE");
6aa53fc5 311
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312 if (RRDs::error) {
313 print "Error while fetching data: " . RRDs::error . "\n";
314 exit 1;
315 }
6aa53fc5 316
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317 rrdcreate("${rrdfile}.${field}.new",
318 "${field}",
319 $host->{'vars'},
320 (${start}-${ostep}));
6aa53fc5 321
3d7df03f 322 print "Preserving data in file ${rrdfile}.${field} since " . localtime($start) . "\n";
e18c93b3 323
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324 my $pos = $start;
325 foreach my $line (@$data) {
326 my $vline = "${pos}";
e18c93b3 327
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328 foreach my $val (@$line) {
329 $val = 'U' if (!defined($val));
330 $vline .= ":${val}";
331 }
332 RRDs::update("${rrdfile}.${field}.new", $vline) or die "Can't insert data\n";
e18c93b3 333
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334 if (RRDs::error) {
335 print "Error while updating: " . RRDs::error . "\n";
336 exit 1;
337 }
338 $pos += $ostep;
e18c93b3 339
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340 if ((($pos-$start)/$ostep) == $#$data) {
341 last;
342 }
343 }
e18c93b3 344
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345 rename("${rrdfile}.${field}", "${rrdfile}.${field}.old") or die "Can't rename old file: $!\n";
346 rename("${rrdfile}.${field}.new", "${rrdfile}.${field}") or die "Can't rename new file: $!\n";
e18c93b3 347
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348 $rrdinfo = RRDs::info("${rrdfile}.${field}");
349 if (RRDs::error) {
350 print "Error while getting info: " . RRDs::error . "\n";
351 exit 1;
352 }
e18c93b3 353
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354 if ($rrdinfo->{'rra[0].rows'} != $keep) {
355 print "Failed!\n";
356 exit 1;
357 }
e18c93b3 358 }
e18c93b3 359 }
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360}
361
362my $child = fork();
e18c93b3 363
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364die "fork failed!" if (!defined($child));
365
366exit 0 if ($child != 0);
367
368while(1) {
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369 open(HTML, ">${outdir}/index.html.new");
370
2c148a8e 371 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>';
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372 print HTML '<body bgcolor="#ffffff">';
373
6c1071ee 374 foreach my $host (@$hosts) {
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375 print HTML "[<a href=\"#".${host}->{'name'}."\">".${host}->{'name'}."</a>]&nbsp;";
376 }
377 print HTML "<br>\n";
378
379 foreach my $host (@$hosts) {
380 print HTML "<br>\n";
381 print HTML "<a name=\"".${host}->{'name'}."\"></a>\n";
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382 my $vars = $host->{'vars'};
383 my $rrdfile = $host->{'rrdfile'};
384 my $hostname = $host->{'name'};
b57167a1 385 my %multi_values = ();
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386
387 foreach my $var (@{$host->{'fields'}}) {
388 delete $vars->{$var}->{'value'};
e5da3876 389
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390 my $result;
391
392 if ((!defined($vars->{$var}->{'proto'})) ||
393 ($vars->{$var}->{'proto'} eq '') ||
394 ($vars->{$var}->{'proto'} eq 'snmp')) {
395 $result = fetch_snmp($host->{'address'}, $host->{'community'}, $vars->{$var}->{'oid'});
396 } elsif ($vars->{$var}->{'proto'} eq 'tcp') {
397 $result = fetch_tcp($host->{'address'}, $vars->{$var}->{'port'});
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398 } elsif ($vars->{$var}->{'proto'} eq 'tcp_multi') {
399 if (defined($multi_values{$vars->{$var}->{'multi_id'}})) {
400 $result = $multi_values{$vars->{$var}->{'multi_id'}}
401 } else {
402 my %values = fetch_tcp_multi($host->{'address'}, $vars->{$var}->{'port'}, $vars->{$var}->{'multi_delimiter'});
403 @multi_values{keys %values} = values %values;
404 $result = $multi_values{$vars->{$var}->{'multi_id'}};
405 }
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406 }
407
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408 next unless (defined $result);
409
0e572cdc 410 $vars->{$var}->{'value'} = $result;
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411 if (defined($vars->{$var}->{'factor'})) {
412 $vars->{$var}->{'value'} *= $vars->{$var}->{'factor'};
413 }
414 }
415
416 foreach my $var (@{$host->{'fields'}}) {
417 if (!(defined($vars->{$var}->{'value'}))) {
418 $vars->{$var}->{'value'} = 'U';
419 }
f49c04f7 420 rrd_update("${rrdfile}.${var}", "N:" . $vars->{$var}->{'value'});
6c1071ee 421 }
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422 if ($rrd_result) {
423 print "Error while updating: " . $rrd_result . "\n";
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424 }
425
6c1071ee 426 foreach my $var (@{$host->{'fields'}}) {
de10ff59 427 my @graphdef = ('-P', "--lazy", "-t", $hostname." - ".$vars->{$var}->{'name'}, "DEF:${var}=${rrdfile}.${var}:${var}:AVERAGE", "LINE1:${var}#FF0000");
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BO
428
429 push @graphdef, "DEF:${var}-min=${rrdfile}.${var}:${var}:MIN", "LINE1:${var}-min#0000FF";
430 push @graphdef, "DEF:${var}-max=${rrdfile}.${var}:${var}:MAX", "LINE1:${var}-max#00FF00";
0e74e3d8 431 push @graphdef, "VDEF:cur=${var},LAST";
de10ff59 432 push @graphdef, 'GPRINT:cur:Current\\: <span foreground="#FF0000">%.2lf</span>\\r';
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MG
433
434 my $mtime;
435 $mtime=(stat("${outdir}/${hostname}.${var}.png.work"))[9];
436
6c1071ee 437 (my $averages, my $width, my $height) =
f49c04f7 438 rrd_graph("${outdir}/${hostname}.${var}.png.work",
6c1071ee 439 "-w", "720", @graphdef);
e5da3876 440
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441 pop @graphdef;
442 pop @graphdef;
443
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444 if ($rrd_result) {
445 print "Error while graphing: " . $rrd_result . "\n";
6c1071ee 446 } else {
52259377 447 my $newmtime=(stat("${outdir}/${hostname}.${var}.png.work"))[9];
f004592a 448 if ((!defined($mtime)) || ($newmtime != $mtime)) {
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449 copy("${outdir}/${hostname}.${var}.png.work", "${outdir}/${hostname}.${var}.png.new");
450 rename("${outdir}/${hostname}.${var}.png.new", "${outdir}/${hostname}.${var}.png");
451 }
6c1071ee 452 }
e5da3876 453
2c148a8e 454 print HTML "<a href=\"${hostname}.${var}.html\"><img src=\"${hostname}.${var}.png\" width=\"${width}\" height=\"${height}\" border=\"0\"></a><br>\n";
58c56c83 455
6c1071ee 456 open (HTML2, ">${outdir}/${hostname}.${var}.html.new");
41cfd723 457 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>';
6c1071ee 458 print HTML2 '<body bgcolor="#ffffff">';
58c56c83 459
3d7df03f 460 push @graphdef, "VDEF:min=${var}-min,MINIMUM";
6c1071ee 461 push @graphdef, "GPRINT:min:Minimum\\: %.2lf";
58c56c83 462
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463 push @graphdef, "VDEF:avg=${var},AVERAGE";
464 push @graphdef, "GPRINT:avg:Average\\: %.2lf";
58c56c83 465
3d7df03f 466 push @graphdef, "VDEF:max=${var}-max,MAXIMUM";
6c1071ee 467 push @graphdef, "GPRINT:max:Maximum\\: %.2lf";
e5da3876 468
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469 push @graphdef, "VDEF:cur=${var},LAST";
470 push @graphdef, "GPRINT:cur:Current\\: %.2lf";
e5da3876 471
52259377 472 $mtime=(stat("${outdir}/${hostname}.${var}.long.png.work"))[9];
6c1071ee 473 ($averages, $width, $height) =
f49c04f7 474 rrd_graph("${outdir}/${hostname}.${var}.long.png.work",
6c1071ee 475 "-w", "1008", @graphdef);
e5da3876 476
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477 if ($rrd_result) {
478 print "Error while graphing: " . $rrd_result . "\n";
6c1071ee 479 } else {
52259377 480 my $newmtime=(stat("${outdir}/${hostname}.${var}.long.png.work"))[9];
f004592a 481 if ((!defined($mtime)) || ($newmtime != $mtime)) {
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482 copy("${outdir}/${hostname}.${var}.long.png.work", "${outdir}/${hostname}.${var}.long.png.new");
483 rename("${outdir}/${hostname}.${var}.long.png.new", "${outdir}/${hostname}.${var}.long.png");
484 }
6c1071ee 485 }
e5da3876 486
1c46ea61 487 print HTML2 "<img src=\"${hostname}.${var}.long.png\" width=\"${width}\" height=\"${height}\"><br>\n";
6c1071ee 488
52259377 489 $mtime=(stat("${outdir}/${hostname}.${var}.week.png.work"))[9];
6c1071ee 490 ($averages, $width, $height) =
f49c04f7 491 rrd_graph("${outdir}/${hostname}.${var}.week.png.work",
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492 "-w", "1008", "-e", "now", "-s", "end-1w", @graphdef);
493
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494 if ($rrd_result) {
495 print "Error while graphing: " . $rrd_result . "\n";
6c1071ee 496 } else {
52259377 497 my $newmtime=(stat("${outdir}/${hostname}.${var}.week.png.work"))[9];
f004592a 498 if ((!defined($mtime)) || ($newmtime != $mtime)) {
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499 copy("${outdir}/${hostname}.${var}.week.png.work", "${outdir}/${hostname}.${var}.week.png.new");
500 rename("${outdir}/${hostname}.${var}.week.png.new", "${outdir}/${hostname}.${var}.week.png");
501 }
6c1071ee 502 }
e5da3876 503
1c46ea61 504 print HTML2 "<img src=\"${hostname}.${var}.week.png\" width=\"${width}\" height=\"${height}\"><br>\n";
e5da3876 505
52259377 506 $mtime=(stat("${outdir}/${hostname}.${var}.year.png.work"))[9];
6c1071ee 507 ($averages, $width, $height) =
f49c04f7 508 rrd_graph("${outdir}/${hostname}.${var}.year.png.work",
6c1071ee 509 "-w", "1008", "-e", "now", "-s", "end-1y", @graphdef);
e5da3876 510
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511 if ($rrd_result) {
512 print "Error while graphing: " . $rrd_result . "\n";
6c1071ee 513 } else {
52259377 514 my $newmtime=(stat("${outdir}/${hostname}.${var}.year.png.work"))[9];
f004592a 515 if ((!defined($mtime)) || ($newmtime != $mtime)) {
52259377
MG
516 copy("${outdir}/${hostname}.${var}.year.png.work", "${outdir}/${hostname}.${var}.year.png.new");
517 rename("${outdir}/${hostname}.${var}.year.png.new", "${outdir}/${hostname}.${var}.year.png");
518 }
6c1071ee 519 }
e18c93b3 520
1c46ea61 521 print HTML2 "<img src=\"${hostname}.${var}.year.png\" width=\"${width}\" height=\"${height}\"><br>\n";
e18c93b3 522
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523 print HTML2 "</body></html>\n";
524 close(HTML2);
525 rename("${outdir}/${hostname}.${var}.html.new", "${outdir}/${hostname}.${var}.html");
526 }
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527 }
528
529 print HTML "</body></html>\n";
530 print HTML "<br>Generated on: " . localtime(time());
863e62dc 531 print HTML ' by <a href="http://git.zerfleddert.de/cgi-bin/gitweb.cgi/upsgraph">upsgraph</a>.';
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532
533 close(HTML);
534
535 rename("${outdir}/index.html.new", "${outdir}/index.html");
536
537 sleep(${step}/2);
538}
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