1: #!/usr/bin/perl
2:
3: # The LearningOnline Network
4: # Housekeeping program, started by cron
5: #
6: # (TCP networking package
7: # 6/1/99,6/2,6/10,6/11,6/12,6/14,6/26,6/28,6/29,6/30,
8: # 7/1,7/2,7/9,7/10,7/12 Gerd Kortemeyer)
9: #
10: # 7/14,7/15,7/19,7/21,7/22,11/18,
11: # 2/8 Gerd Kortemeyer
12: # 12/23 Gerd Kortemeyer
13: # YEAR=2001
14: # 09/04,09/06,11/26 Gerd Kortemeyer
15:
16: $|=1;
17:
18: use lib '/home/httpd/lib/perl/';
19: use LONCAPA::Configuration;
20:
21: use IO::File;
22: use IO::Socket;
23:
24: # -------------------------------------------------- Non-critical communication
25: sub reply {
26: my ($cmd,$server)=@_;
27: my $peerfile="$perlvar{'lonSockDir'}/$server";
28: my $client=IO::Socket::UNIX->new(Peer =>"$peerfile",
29: Type => SOCK_STREAM,
30: Timeout => 10)
31: or return "con_lost";
32: print $client "$cmd\n";
33: my $answer=<$client>;
34: chomp($answer);
35: if (!$answer) { $answer="con_lost"; }
36: return $answer;
37: }
38:
39: # --------------------------------------------------------- Output error status
40:
41: sub errout {
42: my $fh=shift;
43: print $fh (<<ENDERROUT);
44: <p><table border=2 bgcolor="#CCCCCC">
45: <tr><td>Notices</td><td>$notices</td></tr>
46: <tr><td>Warnings</td><td>$warnings</td></tr>
47: <tr><td>Errors</td><td>$errors</td></tr>
48: </table><p><a href="#top">Top</a><p>
49: ENDERROUT
50: }
51:
52: # ================================================================ Main Program
53:
54: # --------------------------------- Read loncapa_apache.conf and loncapa.conf
55: my $perlvarref=LONCAPA::Configuration::read_conf('loncapa.conf');
56: %perlvar=%{$perlvarref};
57: undef $perlvarref;
58: delete $perlvar{'lonReceipt'}; # remove since sensitive and not needed
59: delete $perlvar{'lonSqlAccess'}; # remove since sensitive and not needed
60:
61: # --------------------------------------- Make sure that LON-CAPA is configured
62: # I only test for one thing here (lonHostID). This is just a safeguard.
63: if ('{[[[[lonHostID]]]]}' eq $perlvar{'lonHostID'}) {
64: print("Unconfigured machine.\n");
65: $emailto=$perlvar{'lonSysEMail'};
66: $hostname=`/bin/hostname`;
67: chop $hostname;
68: $hostname=~s/[^\w\.]//g; # make sure is safe to pass through shell
69: $subj="LON: Unconfigured machine $hostname";
70: system("echo 'Unconfigured machine $hostname.' |\
71: mailto $emailto -s '$subj' > /dev/null");
72: exit 1;
73: }
74:
75: # ----------------------------- Make sure this process is running from user=www
76: my $wwwid=getpwnam('www');
77: if ($wwwid!=$<) {
78: print("User ID mismatch. This program must be run as user 'www'\n");
79: $emailto="$perlvar{'lonAdmEMail'},$perlvar{'lonSysEMail'}";
80: $subj="LON: $perlvar{'lonHostID'} User ID mismatch";
81: system("echo 'User ID mismatch. loncron must be run as user www.' |\
82: mailto $emailto -s '$subj' > /dev/null");
83: exit 1;
84: }
85:
86: # ------------------------------------------------------------- Read hosts file
87: {
88: my $config=IO::File->new("$perlvar{'lonTabDir'}/hosts.tab");
89:
90: while (my $configline=<$config>) {
91: my ($id,$domain,$role,$name,$ip,$domdescr)=split(/:/,$configline);
92: if ($id && $domain && $role && $name && $ip) {
93: $hostname{$id}=$name;
94: $hostdom{$id}=$domain;
95: $hostip{$id}=$ip;
96: $hostrole{$id}=$role;
97: if ($domdescr) { $domaindescription{$domain}=$domdescr; }
98: if (($role eq 'library') && ($id ne $perlvar{'lonHostID'})) {
99: $libserv{$id}=$name;
100: }
101: } else {
102: if ($configline) {
103: # &logthis("Skipping hosts.tab line -$configline-");
104: }
105: }
106: }
107: }
108:
109: # ------------------------------------------------------ Read spare server file
110: {
111: my $config=IO::File->new("$perlvar{'lonTabDir'}/spare.tab");
112:
113: while (my $configline=<$config>) {
114: chomp($configline);
115: if (($configline) && ($configline ne $perlvar{'lonHostID'})) {
116: $spareid{$configline}=1;
117: }
118: }
119: }
120:
121: # ---------------------------------------------------------------- Start report
122:
123: $statusdir="/home/httpd/html/lon-status";
124:
125: $errors=0;
126: $warnings=0;
127: $notices=0;
128:
129: $now=time;
130: $date=localtime($now);
131:
132: {
133: my $fh=IO::File->new(">$statusdir/newstatus.html");
134: my %simplestatus=();
135:
136: print $fh (<<ENDHEADERS);
137: <html>
138: <head>
139: <title>LON Status Report $perlvar{'lonHostID'}</title>
140: </head>
141: <body bgcolor="#AAAAAA">
142: <a name="top">
143: <h1>LON Status Report $perlvar{'lonHostID'}</h1>
144: <h2>$date ($now)</h2>
145: <ol>
146: <li><a href="#configuration">Configuration</a>
147: <li><a href="#machine">Machine Information</a>
148: <li><a href="#tmp">Temporary Files</a>
149: <li><a href="#tokens">Session Tokens</a>
150: <li><a href="#httpd">httpd</a>
151: <li><a href="#lonsql">lonsql</a>
152: <li><a href="#lond">lond</a>
153: <li><a href="#lonc">lonc</a>
154: <li><a href="#lonhttpd">lonhttpd</a>
155: <li><a href="#lonnet">lonnet</a>
156: <li><a href="#connections">Connections</a>
157: <li><a href="#delayed">Delayed Messages</a>
158: <li><a href="#errcount">Error Count</a>
159: </ol>
160: <hr>
161: <a name="configuration">
162: <h2>Configuration</h2>
163: <h3>PerlVars</h3>
164: <table border=2>
165: ENDHEADERS
166:
167: foreach $varname (sort(keys(%perlvar))) {
168: print $fh "<tr><td>$varname</td><td>$perlvar{$varname}</td></tr>\n";
169: }
170: print $fh "</table><h3>Hosts</h3><table border=2>";
171: foreach $id (sort(keys(%hostname))) {
172: print $fh
173: "<tr><td>$id</td><td>$hostdom{$id}</td><td>$hostrole{$id}</td>";
174: print $fh "<td>$hostname{$id}</td><td>$hostip{$id}</td></tr>\n";
175: }
176: print $fh "</table><h3>Spare Hosts</h3><ol>";
177: foreach $id (sort(keys(%spareid))) {
178: print $fh "<li>$id\n";
179: }
180:
181: print $fh "</ol>\n";
182:
183: # --------------------------------------------------------------------- Machine
184:
185: print $fh '<hr><a name="machine"><h2>Machine Information</h2>';
186: print $fh "<h3>loadavg</h3>";
187:
188: open (LOADAVGH,"/proc/loadavg");
189: $loadavg=<LOADAVGH>;
190: close (LOADAVGH);
191:
192: print $fh "<tt>$loadavg</tt>";
193:
194: @parts=split(/\s+/,$loadavg);
195: if ($parts[1]>4.0) {
196: $errors++;
197: } elsif ($parts[1]>2.0) {
198: $warnings++;
199: } elsif ($parts[1]>1.0) {
200: $notices++;
201: }
202:
203: print $fh "<h3>df</h3>";
204: print $fh "<pre>";
205:
206: open (DFH,"df|");
207: while ($line=<DFH>) {
208: print $fh "$line";
209: @parts=split(/\s+/,$line);
210: $usage=$parts[4];
211: $usage=~s/\W//g;
212: if ($usage>90) {
213: $warnings++;
214: $notices++;
215: } elsif ($usage>80) {
216: $warnings++;
217: } elsif ($usage>60) {
218: $notices++;
219: }
220: if ($usage>95) { $warnings++; $warnings++; $simplestatus{'diskfull'}++; }
221: }
222: close (DFH);
223: print $fh "</pre>";
224:
225:
226: print $fh "<h3>ps</h3>";
227: print $fh "<pre>";
228: $psproc=0;
229:
230: open (PSH,"ps -aux|");
231: while ($line=<PSH>) {
232: print $fh "$line";
233: $psproc++;
234: }
235: close (PSH);
236: print $fh "</pre>";
237:
238: if ($psproc>200) { $notices++; }
239: if ($psproc>250) { $notices++; }
240:
241: &errout($fh);
242:
243: # --------------------------------------------------------------- clean out tmp
244: print $fh '<hr><a name="tmp"><h2>Temporary Files</h2>';
245: $cleaned=0;
246: $old=0;
247: while ($fname=<$perlvar{'lonDaemons'}/tmp/*>) {
248: my ($dev,$ino,$mode,$nlink,
249: $uid,$gid,$rdev,$size,
250: $atime,$mtime,$ctime,
251: $blksize,$blocks)=stat($fname);
252: $now=time;
253: $since=$now-$mtime;
254: if ($since>$perlvar{'lonExpire'}) {
255: $line='';
256: if (open(PROBE,$fname)) {
257: $line=<PROBE>;
258: close(PROBE);
259: }
260: unless ($line=~/^CHECKOUTTOKEN\&/) {
261: $cleaned++;
262: unlink("$fname");
263: } else {
264: if ($since>365*$perlvar{'lonExpire'}) {
265: $cleaned++;
266: unlink("$fname");
267: } else { $old++; }
268: }
269: }
270:
271: }
272: print $fh "Cleaned up ".$cleaned." files (".$old." old checkout tokens).";
273:
274: # ------------------------------------------------------------ clean out lonIDs
275: print $fh '<hr><a name="tokens"><h2>Session Tokens</h2>';
276: $cleaned=0;
277: $active=0;
278: while ($fname=<$perlvar{'lonIDsDir'}/*>) {
279: my ($dev,$ino,$mode,$nlink,
280: $uid,$gid,$rdev,$size,
281: $atime,$mtime,$ctime,
282: $blksize,$blocks)=stat($fname);
283: $now=time;
284: $since=$now-$mtime;
285: if ($since>$perlvar{'lonExpire'}) {
286: $cleaned++;
287: print $fh "Unlinking $fname<br>";
288: unlink("$fname");
289: } else {
290: $active++;
291: }
292:
293: }
294: print $fh "<p>Cleaned up ".$cleaned." stale session token(s).";
295: print $fh "<h3>$active open session(s)</h3>";
296:
297: # ----------------------------------------------------------------------- httpd
298:
299: print $fh '<hr><a name="httpd"><h2>httpd</h2><h3>Access Log</h3><pre>';
300:
301: open (DFH,"tail -n25 /etc/httpd/logs/access_log|");
302: while ($line=<DFH>) { print $fh "$line" };
303: close (DFH);
304:
305: print $fh "</pre><h3>Error Log</h3><pre>";
306:
307: open (DFH,"tail -n25 /etc/httpd/logs/error_log|");
308: while ($line=<DFH>) {
309: print $fh "$line";
310: if ($line=~/\[error\]/) { $notices++; }
311: };
312: close (DFH);
313: print $fh "</pre>";
314: &errout($fh);
315:
316:
317: # ---------------------------------------------------------------------- lonsql
318:
319: my $restartflag=1;
320: print $fh '<hr><a name="lonsql"><h2>lonsql</h2><h3>Log</h3><pre>';
321: print "lonsql\n";
322: if (-e "$perlvar{'lonDaemons'}/logs/lonsql.log"){
323: open (DFH,"tail -n100 $perlvar{'lonDaemons'}/logs/lonsql.log|");
324: while ($line=<DFH>) {
325: print $fh "$line";
326: if ($line=~/INFO/) { $notices++; }
327: if ($line=~/WARNING/) { $notices++; }
328: if ($line=~/CRITICAL/) { $warnings++; }
329: };
330: close (DFH);
331: }
332: print $fh "</pre>";
333:
334: my $lonsqlfile="$perlvar{'lonDaemons'}/logs/lonsql.pid";
335:
336: $restartflag=1;
337:
338: if (-e $lonsqlfile) {
339: my $lfh=IO::File->new("$lonsqlfile");
340: my $lonsqlpid=<$lfh>;
341: chomp($lonsqlpid);
342: if (kill 0 => $lonsqlpid) {
343: print $fh "<h3>lonsql at pid $lonsqlpid responding</h3>";
344: $restartflag=0;
345: } else {
346: $errors++; $errors++;
347: print $fh "<h3>lonsql at pid $lonsqlpid not responding</h3>";
348: $restartflag=1;
349: print $fh
350: "<h3>Decided to clean up stale .pid file and restart lonsql</h3>";
351: }
352: }
353: if ($restartflag==1) {
354: $simplestatus{'lonsql'}='off';
355: $errors++;
356: print $fh '<br><font color="red">Killall lonsql: '.
357: system('killall lonsql').' - ';
358: sleep 2;
359: print $fh unlink($lonsqlfile).' - '.
360: system('killall -9 lonsql').
361: '</font><br>';
362: print $fh "<h3>lonsql not running, trying to start</h3>";
363: system(
364: "$perlvar{'lonDaemons'}/lonsql 2>>$perlvar{'lonDaemons'}/logs/lonsql_errors");
365: sleep 2;
366: if (-e $lonsqlfile) {
367: print $fh "Seems like it started ...<p>";
368: my $lfh=IO::File->new("$lonsqlfile");
369: my $lonsqlpid=<$lfh>;
370: chomp($lonsqlpid);
371: sleep 2;
372: if (kill 0 => $lonsqlpid) {
373: print $fh "<h3>lonsql at pid $lonsqlpid responding</h3>";
374: $simplestatus{'lonsql'}='restarted';
375: } else {
376: $errors++; $errors++;
377: print $fh "<h3>lonsql at pid $lonsqlpid not responding</h3>";
378: print $fh "Give it one more try ...<p>";
379: system(
380: "$perlvar{'lonDaemons'}/lonsql 2>>$perlvar{'lonDaemons'}/logs/lonsql_errors");
381: sleep 2;
382: }
383: } else {
384: print $fh "Seems like that did not work!<p>";
385: $errors++;
386: }
387: if (-e "$perlvar{'lonDaemons'}/logs/lonsql.log"){
388: print $fh "<p><pre>";
389: open (DFH,"tail -n100 $perlvar{'lonDaemons'}/logs/lonsql.log|");
390: while ($line=<DFH>) {
391: print $fh "$line";
392: if ($line=~/WARNING/) { $notices++; }
393: if ($line=~/CRITICAL/) { $notices++; }
394: };
395: close (DFH);
396: print $fh "</pre>";
397: }
398: }
399:
400: $fname="$perlvar{'lonDaemons'}/logs/lonsql.log";
401:
402: my ($dev,$ino,$mode,$nlink,
403: $uid,$gid,$rdev,$size,
404: $atime,$mtime,$ctime,
405: $blksize,$blocks)=stat($fname);
406:
407: if ($size>200000) {
408: print $fh "Rotating logs ...<p>";
409: rename("$fname.2","$fname.3");
410: rename("$fname.1","$fname.2");
411: rename("$fname","$fname.1");
412: }
413:
414: &errout($fh);
415: # ------------------------------------------------------------------------ lond
416:
417: print $fh '<hr><a name="lond"><h2>lond</h2><h3>Log</h3><pre>';
418: print "lond\n";
419:
420: if (-e "$perlvar{'lonDaemons'}/logs/lond.log"){
421: open (DFH,"tail -n25 $perlvar{'lonDaemons'}/logs/lond.log|");
422: while ($line=<DFH>) {
423: print $fh "$line";
424: if ($line=~/INFO/) { $notices++; }
425: if ($line=~/WARNING/) { $notices++; }
426: if ($line=~/CRITICAL/) { $warnings++; }
427: };
428: close (DFH);
429: }
430: print $fh "</pre>";
431:
432: my $londfile="$perlvar{'lonDaemons'}/logs/lond.pid";
433:
434: $restartflag=1;
435: if (-e $londfile) {
436: my $lfh=IO::File->new("$londfile");
437: my $londpid=<$lfh>;
438: chomp($londpid);
439: if (kill 0 => $londpid) {
440: print $fh "<h3>lond at pid $londpid responding, sending USR1</h3>";
441: kill USR1 => $londpid;
442: $restartflag=0;
443: } else {
444: $errors++;
445: print $fh "<h3>lond at pid $londpid not responding</h3>";
446: $restartflag=1;
447: print $fh
448: "<h3>Decided to clean up stale .pid file and restart lond</h3>";
449: }
450: }
451: if ($restartflag==1) {
452: $simplestatus{'lond'}='off';
453: $errors++;
454: print $fh '<br><font color="red">Killall lond: '.
455: system('killall lond').' - ';
456: sleep 2;
457: print $fh unlink($londfile).' - '.system('killall -9 lond').
458: '</font><br>';
459: print $fh "<h3>lond not running, trying to start</h3>";
460: system(
461: "$perlvar{'lonDaemons'}/lond 2>>$perlvar{'lonDaemons'}/logs/lond_errors");
462: sleep 2;
463: if (-e $londfile) {
464: print $fh "Seems like it started ...<p>";
465: my $lfh=IO::File->new("$londfile");
466: my $londpid=<$lfh>;
467: chomp($londpid);
468: sleep 2;
469: if (kill 0 => $londpid) {
470: print $fh "<h3>lond at pid $londpid responding</h3>";
471: $simplestatus{'lond'}='restarted';
472: } else {
473: $errors++; $errors++;
474: print $fh "<h3>lond at pid $londpid not responding</h3>";
475: print $fh "Give it one more try ...<p>";
476: system(
477: "$perlvar{'lonDaemons'}/lond 2>>$perlvar{'lonDaemons'}/logs/lond_errors");
478: sleep 2;
479: }
480: } else {
481: print $fh "Seems like that did not work!<p>";
482: $errors++;
483: }
484: if (-e "$perlvar{'lonDaemons'}/logs/lond.log"){
485: print $fh "<p><pre>";
486: open (DFH,"tail -n100 $perlvar{'lonDaemons'}/logs/lond.log|");
487: while ($line=<DFH>) {
488: print $fh "$line";
489: if ($line=~/WARNING/) { $notices++; }
490: if ($line=~/CRITICAL/) { $notices++; }
491: };
492: close (DFH);
493: print $fh "</pre>";
494: }
495: }
496:
497: $fname="$perlvar{'lonDaemons'}/logs/lond.log";
498:
499: my ($dev,$ino,$mode,$nlink,
500: $uid,$gid,$rdev,$size,
501: $atime,$mtime,$ctime,
502: $blksize,$blocks)=stat($fname);
503:
504: if ($size>40000) {
505: print $fh "Rotating logs ...<p>";
506: rename("$fname.2","$fname.3");
507: rename("$fname.1","$fname.2");
508: rename("$fname","$fname.1");
509: }
510:
511: &errout($fh);
512: # ------------------------------------------------------------------------ lonc
513:
514: print $fh '<hr><a name="lonc"><h2>lonc</h2><h3>Log</h3><pre>';
515: print "lonc\n";
516:
517: if (-e "$perlvar{'lonDaemons'}/logs/lonc.log"){
518: open (DFH,"tail -n25 $perlvar{'lonDaemons'}/logs/lonc.log|");
519: while ($line=<DFH>) {
520: print $fh "$line";
521: if ($line=~/INFO/) { $notices++; }
522: if ($line=~/WARNING/) { $notices++; }
523: if ($line=~/CRITICAL/) { $warnings++; }
524: };
525: close (DFH);
526: }
527: print $fh "</pre>";
528:
529: my $loncfile="$perlvar{'lonDaemons'}/logs/lonc.pid";
530:
531: $restartflag=1;
532: if (-e $loncfile) {
533: my $lfh=IO::File->new("$loncfile");
534: my $loncpid=<$lfh>;
535: chomp($loncpid);
536: if (kill 0 => $loncpid) {
537: print $fh "<h3>lonc at pid $loncpid responding, sending USR1</h3>";
538: kill USR1 => $loncpid;
539: $restartflag=0;
540: } else {
541: $errors++;
542: print $fh "<h3>lonc at pid $loncpid not responding</h3>";
543: # Solution: kill parent and children processes, remove .pid and restart
544: $restartflag=1;
545: print $fh
546: "<h3>Decided to clean up stale .pid file and restart lonc</h3>";
547: }
548: }
549: if ($restartflag==1) {
550: $simplestatus{'lonc'}='off';
551: $errors++;
552: print $fh '<br><font color="red">Killall lonc: '.
553: system('killall lonc').' - ';
554: sleep 2;
555: print $fh unlink($loncfile).' - '.system('killall -9 lonc').
556: '</font><br>';
557: print $fh "<h3>lonc not running, trying to start</h3>";
558: system(
559: "$perlvar{'lonDaemons'}/lonc 2>>$perlvar{'lonDaemons'}/logs/lonc_errors");
560: sleep 2;
561: if (-e $loncfile) {
562: print $fh "Seems like it started ...<p>";
563: my $lfh=IO::File->new("$loncfile");
564: my $loncpid=<$lfh>;
565: chomp($loncpid);
566: sleep 2;
567: if (kill 0 => $loncpid) {
568: print $fh "<h3>lonc at pid $loncpid responding</h3>";
569: $simplestatus{'lonc'}='restarted';
570: } else {
571: $errors++; $errors++;
572: print $fh "<h3>lonc at pid $loncpid not responding</h3>";
573: print $fh "Give it one more try ...<p>";
574: system(
575: "$perlvar{'lonDaemons'}/lonc 2>>$perlvar{'lonDaemons'}/logs/lonc_errors");
576: sleep 2;
577: }
578: } else {
579: print $fh "Seems like that did not work!<p>";
580: $errors++;
581: }
582: if (-e "$perlvar{'lonDaemons'}/logs/lonc.log") {
583: print $fh "<p><pre>";
584: open (DFH,"tail -n100 $perlvar{'lonDaemons'}/logs/lonc.log|");
585: while ($line=<DFH>) {
586: print $fh "$line";
587: if ($line=~/WARNING/) { $notices++; }
588: if ($line=~/CRITICAL/) { $notices++; }
589: };
590: close (DFH);
591: print $fh "</pre>";
592: }
593: }
594:
595: $fname="$perlvar{'lonDaemons'}/logs/lonc.log";
596:
597: my ($dev,$ino,$mode,$nlink,
598: $uid,$gid,$rdev,$size,
599: $atime,$mtime,$ctime,
600: $blksize,$blocks)=stat($fname);
601:
602: if ($size>40000) {
603: print $fh "Rotating logs ...<p>";
604: rename("$fname.2","$fname.3");
605: rename("$fname.1","$fname.2");
606: rename("$fname","$fname.1");
607: }
608:
609:
610: &errout($fh);
611: # -------------------------------------------------------------------- lonhttpd
612:
613: print $fh '<hr><a name="lonhttpd"><h2>lonhttpd</h2><h3>Log</h3><pre>';
614: print "lonhttpd\n";
615:
616: if (-e "$perlvar{'lonDaemons'}/logs/lonhttpd.log"){
617: open (DFH,"tail -n25 $perlvar{'lonDaemons'}/logs/lonhttpd.log|");
618: while ($line=<DFH>) {
619: print $fh "$line";
620: if ($line=~/INFO/) { $notices++; }
621: if ($line=~/WARNING/) { $notices++; }
622: if ($line=~/CRITICAL/) { $warnings++; }
623: };
624: close (DFH);
625: }
626: print $fh "</pre>";
627:
628: my $lonhttpdfile="$perlvar{'lonDaemons'}/logs/lonhttpd.pid";
629:
630: $restartflag=1;
631: if (-e $lonhttpdfile) {
632: my $lfh=IO::File->new("$lonhttpdfile");
633: my $lonhttpdpid=<$lfh>;
634: chomp($lonhttpdpid);
635: if (kill 0 => $lonhttpdpid) {
636: print $fh "<h3>lonhttpd at pid $lonhttpdpid responding</h3>";
637: $restartflag=0;
638: } else {
639: $errors++;
640: print $fh "<h3>lonhttpd at pid $lonhttpdpid not responding</h3>";
641: # Solution: kill parent and children processes, remove .pid and restart
642: $restartflag=1;
643: print $fh
644: "<h3>Decided to clean up stale .pid file and restart lonhttpd</h3>";
645: }
646: }
647: if ($restartflag==1) {
648: $simplestatus{'lonhttpd'}='off';
649: $errors++;
650: print $fh '<br><font color="red">Killall lonhttpd: '.
651: system('killall lonhttpd').' - ';
652: sleep 2;
653: print $fh unlink($lonhttpdfile).' - '.system('killall -9 lonhttpd').
654: '</font><br>';
655: print $fh "<h3>lonhttpd not running, trying to start</h3>";
656: system(
657: "$perlvar{'lonDaemons'}/lonhttpd 2>>$perlvar{'lonDaemons'}/logs/lonhttpd_errors");
658: sleep 2;
659: if (-e $lonhttpdfile) {
660: print $fh "Seems like it started ...<p>";
661: my $lfh=IO::File->new("$lonhttpdfile");
662: my $lonhttpdpid=<$lfh>;
663: chomp($lonhttpdpid);
664: sleep 2;
665: if (kill 0 => $lonhttpdpid) {
666: print $fh "<h3>lonhttpd at pid $lonhttpdpid responding</h3>";
667: $simplestatus{'lonhttpd'}='restarted';
668: } else {
669: $errors++; $errors++;
670: print $fh "<h3>lonhttpd at pid $lonhttpdpid not responding</h3>";
671: print $fh "Give it one more try ...<p>";
672: system(
673: "$perlvar{'lonDaemons'}/lonhttpd 2>>$perlvar{'lonDaemons'}/logs/lonhttpd_errors");
674: sleep 2;
675: }
676: } else {
677: print $fh "Seems like that did not work!<p>";
678: $errors++;
679: }
680: if (-e "$perlvar{'lonDaemons'}/logs/lonhttpd.log") {
681: print $fh "<p><pre>";
682: open (DFH,"tail -n100 $perlvar{'lonDaemons'}/logs/lonhttpd.log|");
683: while ($line=<DFH>) {
684: print $fh "$line";
685: if ($line=~/WARNING/) { $notices++; }
686: if ($line=~/CRITICAL/) { $notices++; }
687: };
688: close (DFH);
689: print $fh "</pre>";
690: }
691: }
692:
693: $fname="$perlvar{'lonDaemons'}/logs/lonhttpd.log";
694:
695: my ($dev,$ino,$mode,$nlink,
696: $uid,$gid,$rdev,$size,
697: $atime,$mtime,$ctime,
698: $blksize,$blocks)=stat($fname);
699:
700: if ($size>40000) {
701: print $fh "Rotating logs ...<p>";
702: rename("$fname.2","$fname.3");
703: rename("$fname.1","$fname.2");
704: rename("$fname","$fname.1");
705: }
706:
707:
708: &errout($fh);
709: # ---------------------------------------------------------------------- lonnet
710:
711: print $fh '<hr><a name="lonnet"><h2>lonnet</h2><h3>Temp Log</h3><pre>';
712: print "lonnet\n";
713: if (-e "$perlvar{'lonDaemons'}/logs/lonnet.log"){
714: open (DFH,"tail -n50 $perlvar{'lonDaemons'}/logs/lonnet.log|");
715: while ($line=<DFH>) {
716: print $fh "$line";
717: };
718: close (DFH);
719: }
720: print $fh "</pre><h3>Perm Log</h3><pre>";
721:
722: if (-e "$perlvar{'lonDaemons'}/logs/lonnet.perm.log") {
723: open(DFH,"tail -n10 $perlvar{'lonDaemons'}/logs/lonnet.perm.log|");
724: while ($line=<DFH>) {
725: print $fh "$line";
726: };
727: close (DFH);
728: } else { print $fh "No perm log\n" }
729:
730: $fname="$perlvar{'lonDaemons'}/logs/lonnet.log";
731:
732: my ($dev,$ino,$mode,$nlink,
733: $uid,$gid,$rdev,$size,
734: $atime,$mtime,$ctime,
735: $blksize,$blocks)=stat($fname);
736:
737: if ($size>40000) {
738: print $fh "Rotating logs ...<p>";
739: rename("$fname.2","$fname.3");
740: rename("$fname.1","$fname.2");
741: rename("$fname","$fname.1");
742: }
743:
744: print $fh "</pre>";
745: &errout($fh);
746: # ----------------------------------------------------------------- Connections
747:
748: print $fh '<hr><a name="connections"><h2>Connections</h2>';
749:
750: print $fh "<table border=2>";
751: foreach $tryserver (sort(keys(%hostname))) {
752:
753: $answer=reply("pong",$tryserver);
754: if ($answer eq "$tryserver:$perlvar{'lonHostID'}") {
755: $result="<b>ok</b>";
756: } else {
757: $result=$answer;
758: $warnings++;
759: if ($answer eq 'con_lost') { $warnings++; }
760: }
761: print $fh "<tr><td>$tryserver</td><td>$result</td></tr>\n";
762:
763: }
764: print $fh "</table>";
765:
766: &errout($fh);
767: # ------------------------------------------------------------ Delayed messages
768:
769: print $fh '<hr><a name="delayed"><h2>Delayed Messages</h2>';
770: print "buffers\n";
771:
772: print $fh '<h3>Scanning Permanent Log</h3>';
773:
774: $unsend=0;
775: {
776: my $dfh=IO::File->new("$perlvar{'lonDaemons'}/logs/lonnet.perm.log");
777: while ($line=<$dfh>) {
778: ($time,$sdf,$dserv,$dcmd)=split(/:/,$line);
779: if ($sdf eq 'F') {
780: $local=localtime($time);
781: print "<b>Failed: $time, $dserv, $dcmd</b><br>";
782: $warnings++;
783: }
784: if ($sdf eq 'S') { $unsend--; }
785: if ($sdf eq 'D') { $unsend++; }
786: }
787: }
788: print $fh "Total unsend messages: <b>$unsend</b><p>\n";
789: $warnings=$warnings+5*$unsend;
790:
791: if ($unsend) { $simplestatus{'unsend'}=$unsend; }
792: print $fh "<h3>Outgoing Buffer</h3>";
793:
794: open (DFH,"ls -lF $perlvar{'lonSockDir'}/delayed|");
795: while ($line=<DFH>) {
796: print $fh "$line<br>";
797: };
798: close (DFH);
799:
800: # ------------------------------------------------------------------------- End
801: print $fh "<a name=errcount>\n";
802: $totalcount=$notices+4*$warnings+100*$errors;
803: &errout($fh);
804: print $fh "<h1>Total Error Count: $totalcount</h1>";
805: $now=time;
806: $date=localtime($now);
807: print $fh "<hr>$date ($now)</body></html>\n";
808: print "writing done\n";
809: $fh->close();
810: }
811: if ($errors) { $simplestatus{'errors'}=$errors; }
812: if ($warnings) { $simplestatus{'warnings'}=$warnings; }
813: if ($notices) { $simplestatus{'notices'}=$notices; }
814: $simplestatus{'time'}=time;
815:
816: rename ("$statusdir/newstatus.html","$statusdir/index.html");
817: {
818: my $sfh=IO::File->new(">$statusdir/loncron_simple.txt");
819: foreach (keys %simplestatus) {
820: print $sfh $_.'='.$simplestatus{$_}.'&';
821: }
822: print $sfh "\n";
823: $sfh->close();
824: }
825: if ($totalcount>200) {
826: print "mailing\n";
827: $emailto="$perlvar{'lonAdmEMail'}";
828: if ($totalcount>1000) {
829: $emailto.=",$perlvar{'lonSysEMail'}";
830: }
831: $subj="LON: $perlvar{'lonHostID'} E:$errors W:$warnings N:$notices";
832: system(
833: "metasend -b -t $emailto -s '$subj' -f $statusdir/index.html -m text/html");
834: }
835: 1;
836:
837:
838:
839:
840:
841:
842:
843:
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