1: #!/usr/bin/perl
2:
3: # Housekeeping program, started by cron, loncontrol and loncron.pl
4: #
5: # $Id: loncron,v 1.62 2005/11/10 19:07:01 albertel Exp $
6: #
7: # Copyright Michigan State University Board of Trustees
8: #
9: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
10: #
11: # LON-CAPA is free software; you can redistribute it and/or modify
12: # it under the terms of the GNU General Public License as published by
13: # the Free Software Foundation; either version 2 of the License, or
14: # (at your option) any later version.
15: #
16: # LON-CAPA is distributed in the hope that it will be useful,
17: # but WITHOUT ANY WARRANTY; without even the implied warranty of
18: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19: # GNU General Public License for more details.
20: #
21: # You should have received a copy of the GNU General Public License
22: # along with LON-CAPA; if not, write to the Free Software
23: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
24: #
25: # /home/httpd/html/adm/gpl.txt
26: #
27: # http://www.lon-capa.org/
28: #
29:
30: $|=1;
31: use strict;
32:
33: use lib '/home/httpd/lib/perl/';
34: use LONCAPA::Configuration;
35:
36: use IO::File;
37: use IO::Socket;
38: use HTML::Entities;
39: use Getopt::Long;
40: #globals
41: use vars qw (%perlvar %simplestatus $errors $warnings $notices $totalcount);
42:
43: my $statusdir="/home/httpd/html/lon-status";
44:
45:
46: # -------------------------------------------------- Non-critical communication
47: sub reply {
48: my ($cmd,$server)=@_;
49: my $peerfile="$perlvar{'lonSockDir'}/$server";
50: my $client=IO::Socket::UNIX->new(Peer =>"$peerfile",
51: Type => SOCK_STREAM,
52: Timeout => 10)
53: or return "con_lost";
54: print $client "$cmd\n";
55: my $answer=<$client>;
56: chomp($answer);
57: if (!$answer) { $answer="con_lost"; }
58: return $answer;
59: }
60:
61: # --------------------------------------------------------- Output error status
62:
63: sub log {
64: my $fh=shift;
65: if ($fh) { print $fh @_ }
66: }
67:
68: sub errout {
69: my $fh=shift;
70: &log($fh,(<<ENDERROUT));
71: <table border="2" bgcolor="#CCCCCC">
72: <tr><td>Notices</td><td>$notices</td></tr>
73: <tr><td>Warnings</td><td>$warnings</td></tr>
74: <tr><td>Errors</td><td>$errors</td></tr>
75: </table><p><a href="#top">Top</a></p>
76: ENDERROUT
77: }
78:
79: sub start_daemon {
80: my ($fh,$daemon,$pidfile,$args) = @_;
81: my $progname=$daemon;
82: if ($daemon eq 'lonc' && $args eq 'new') {
83: $progname='loncnew';
84: print "new ";
85: }
86: my $error_fname="$perlvar{'lonDaemons'}/logs/${daemon}_errors";
87: my $size=(stat($error_fname))[7];
88: if ($size>40000) {
89: &log($fh,"<p>Rotating error logs ...</p>");
90: rename("$error_fname.2","$error_fname.3");
91: rename("$error_fname.1","$error_fname.2");
92: rename("$error_fname","$error_fname.1");
93: }
94: system("$perlvar{'lonDaemons'}/$progname 2>$perlvar{'lonDaemons'}/logs/${daemon}_errors");
95: sleep 1;
96: if (-e $pidfile) {
97: &log($fh,"<p>Seems like it started ...</p>");
98: my $lfh=IO::File->new("$pidfile");
99: my $daemonpid=<$lfh>;
100: chomp($daemonpid);
101: if ($daemonpid =~ /^\d+$/ && kill 0 => $daemonpid) {
102: return 1;
103: } else {
104: return 0;
105: }
106: }
107: &log($fh,"<p>Seems like that did not work!</p>");
108: $errors++;
109: return 0;
110: }
111:
112: sub checkon_daemon {
113: my ($fh,$daemon,$maxsize,$send,$args)=@_;
114:
115: &log($fh,'<hr /><a name="'.$daemon.'" /><h2>'.$daemon.'</h2><h3>Log</h3><p style="white-space: pre;"><tt>');
116: printf("%-15s ",$daemon);
117: if (-e "$perlvar{'lonDaemons'}/logs/$daemon.log"){
118: open (DFH,"tail -n25 $perlvar{'lonDaemons'}/logs/$daemon.log|");
119: while (my $line=<DFH>) {
120: &log($fh,"$line");
121: if ($line=~/INFO/) { $notices++; }
122: if ($line=~/WARNING/) { $notices++; }
123: if ($line=~/CRITICAL/) { $warnings++; }
124: };
125: close (DFH);
126: }
127: &log($fh,"</tt></p>");
128:
129: my $pidfile="$perlvar{'lonDaemons'}/logs/$daemon.pid";
130:
131: my $restartflag=1;
132: my $daemonpid;
133: if (-e $pidfile) {
134: my $lfh=IO::File->new("$pidfile");
135: $daemonpid=<$lfh>;
136: chomp($daemonpid);
137: if ($daemonpid =~ /^\d+$/ && kill 0 => $daemonpid) {
138: &log($fh,"<h3>$daemon at pid $daemonpid responding");
139: if ($send) { &log($fh,", sending $send"); }
140: &log($fh,"</h3>");
141: if ($send eq 'USR1') { kill USR1 => $daemonpid; }
142: if ($send eq 'USR2') { kill USR2 => $daemonpid; }
143: $restartflag=0;
144: if ($send eq 'USR2') {
145: print "reloaded\n";
146: } else {
147: print "running\n";
148: }
149: } else {
150: $errors++;
151: &log($fh,"<h3>$daemon at pid $daemonpid not responding</h3>");
152: $restartflag=1;
153: &log($fh,"<h3>Decided to clean up stale .pid file and restart $daemon</h3>");
154: }
155: }
156: if ($restartflag==1) {
157: $simplestatus{$daemon}='off';
158: $errors++;
159: my $kadaemon=$daemon;
160: if ($kadaemon eq 'lonmemcached') { $kadaemon='memcached'; }
161: &log($fh,'<br><font color="red">Killall '.$daemon.': '.
162: `killall $kadaemon 2>&1`.' - ');
163: sleep 1;
164: &log($fh,unlink($pidfile).' - '.
165: `killall -9 $kadaemon 2>&1`.
166: '</font><br>');
167: &log($fh,"<h3>$daemon not running, trying to start</h3>");
168:
169: if (&start_daemon($fh,$daemon,$pidfile,$args)) {
170: &log($fh,"<h3>$daemon at pid $daemonpid responding</h3>");
171: $simplestatus{$daemon}='restarted';
172: print "started\n";
173: } else {
174: $errors++;
175: &log($fh,"<h3>$daemon at pid $daemonpid not responding</h3>");
176: &log($fh,"<p>Give it one more try ...</p>");
177: print " ";
178: if (&start_daemon($fh,$daemon,$pidfile,$args)) {
179: &log($fh,"<h3>$daemon at pid $daemonpid responding</h3>");
180: $simplestatus{$daemon}='restarted';
181: print "started\n";
182: } else {
183: print " failed\n";
184: $simplestatus{$daemon}='failed';
185: $errors++; $errors++;
186: &log($fh,"<h3>$daemon at pid $daemonpid not responding</h3>");
187: &log($fh,"<p>Unable to start $daemon</p>");
188: }
189: }
190:
191: if (-e "$perlvar{'lonDaemons'}/logs/$daemon.log"){
192: &log($fh,"<p><pre>");
193: open (DFH,"tail -n100 $perlvar{'lonDaemons'}/logs/$daemon.log|");
194: while (my $line=<DFH>) {
195: &log($fh,"$line");
196: if ($line=~/WARNING/) { $notices++; }
197: if ($line=~/CRITICAL/) { $notices++; }
198: };
199: close (DFH);
200: &log($fh,"</pre></p>");
201: }
202: }
203:
204: my $fname="$perlvar{'lonDaemons'}/logs/$daemon.log";
205:
206: my ($dev,$ino,$mode,$nlink,
207: $uid,$gid,$rdev,$size,
208: $atime,$mtime,$ctime,
209: $blksize,$blocks)=stat($fname);
210:
211: if ($size>$maxsize) {
212: &log($fh,"<p>Rotating logs ...</p>");
213: rename("$fname.2","$fname.3");
214: rename("$fname.1","$fname.2");
215: rename("$fname","$fname.1");
216: }
217:
218: &errout($fh);
219: }
220:
221: # --------------------------------------------------------------------- Machine
222: sub log_machine_info {
223: my ($fh)=@_;
224: &log($fh,'<hr /><a name="machine" /><h2>Machine Information</h2>');
225: &log($fh,"<h3>loadavg</h3>");
226:
227: open (LOADAVGH,"/proc/loadavg");
228: my $loadavg=<LOADAVGH>;
229: close (LOADAVGH);
230:
231: &log($fh,"<tt>$loadavg</tt>");
232:
233: my @parts=split(/\s+/,$loadavg);
234: if ($parts[1]>4.0) {
235: $errors++;
236: } elsif ($parts[1]>2.0) {
237: $warnings++;
238: } elsif ($parts[1]>1.0) {
239: $notices++;
240: }
241:
242: &log($fh,"<h3>df</h3>");
243: &log($fh,"<pre>");
244:
245: open (DFH,"df|");
246: while (my $line=<DFH>) {
247: &log($fh,&encode_entities($line,'<>&"'));
248: @parts=split(/\s+/,$line);
249: my $usage=$parts[4];
250: $usage=~s/\W//g;
251: if ($usage>90) {
252: $warnings++;
253: $notices++;
254: } elsif ($usage>80) {
255: $warnings++;
256: } elsif ($usage>60) {
257: $notices++;
258: }
259: if ($usage>95) { $warnings++; $warnings++; $simplestatus{'diskfull'}++; }
260: }
261: close (DFH);
262: &log($fh,"</pre>");
263:
264:
265: &log($fh,"<h3>ps</h3>");
266: &log($fh,"<pre>");
267: my $psproc=0;
268:
269: open (PSH,"ps aux --cols 140 |");
270: while (my $line=<PSH>) {
271: &log($fh,&encode_entities($line,'<>&"'));
272: $psproc++;
273: }
274: close (PSH);
275: &log($fh,"</pre>");
276:
277: if ($psproc>200) { $notices++; }
278: if ($psproc>250) { $notices++; }
279:
280: &log($fh,"<h3>distprobe</h3>");
281: &log($fh,"<pre>");
282: open(DSH,"$perlvar{'lonDaemons'}/distprobe |");
283: while (my $line=<DSH>) {
284: &log($fh,&encode_entities($line,'<>&"'));
285: $psproc++;
286: }
287: close(DSH);
288: &log($fh,"</pre>");
289:
290: &errout($fh);
291: }
292:
293: sub start_logging {
294: my ($hostdom,$hostrole,$hostname,$spareid)=@_;
295: my $fh=IO::File->new(">$statusdir/newstatus.html");
296: my %simplestatus=();
297: my $now=time;
298: my $date=localtime($now);
299:
300:
301: &log($fh,(<<ENDHEADERS));
302: <html>
303: <head>
304: <title>LON Status Report $perlvar{'lonHostID'}</title>
305: </head>
306: <body bgcolor="#AAAAAA">
307: <a name="top" />
308: <h1>LON Status Report $perlvar{'lonHostID'}</h1>
309: <h2>$date ($now)</h2>
310: <ol>
311: <li><a href="#configuration">Configuration</a></li>
312: <li><a href="#machine">Machine Information</a></li>
313: <li><a href="#tmp">Temporary Files</a></li>
314: <li><a href="#tokens">Session Tokens</a></li>
315: <li><a href="#httpd">httpd</a></li>
316: <li><a href="#lonsql">lonsql</a></li>
317: <li><a href="#lond">lond</a></li>
318: <li><a href="#lonc">lonc</a></li>
319: <li><a href="#lonhttpd">lonhttpd</a></li>
320: <li><a href="#lonnet">lonnet</a></li>
321: <li><a href="#connections">Connections</a></li>
322: <li><a href="#delayed">Delayed Messages</a></li>
323: <li><a href="#errcount">Error Count</a></li>
324: </ol>
325: <hr />
326: <a name="configuration" />
327: <h2>Configuration</h2>
328: <h3>PerlVars</h3>
329: <table border="2">
330: ENDHEADERS
331:
332: foreach my $varname (sort(keys(%perlvar))) {
333: &log($fh,"<tr><td>$varname</td><td>".
334: &encode_entities($perlvar{$varname},'<>&"')."</td></tr>\n");
335: }
336: &log($fh,"</table><h3>Hosts</h3><table border='2'>");
337: foreach my $id (sort(keys(%{$hostname}))) {
338: &log($fh,
339: "<tr><td>$id</td><td>".$hostdom->{$id}.
340: "</td><td>".$hostrole->{$id}.
341: "</td><td>".$hostname->{$id}."</td></tr>\n");
342: }
343: &log($fh,"</table><h3>Spare Hosts</h3><ol>");
344: foreach my $id (sort(keys(%{$spareid}))) {
345: &log($fh,"<li>$id\n</li>");
346: }
347: &log($fh,"</ol>\n");
348: return $fh;
349: }
350:
351: # --------------------------------------------------------------- clean out tmp
352: sub clean_tmp {
353: my ($fh)=@_;
354: &log($fh,'<hr /><a name="tmp" /><h2>Temporary Files</h2>');
355: my $cleaned=0;
356: my $old=0;
357: while (my $fname=<$perlvar{'lonDaemons'}/tmp/*>) {
358: my ($dev,$ino,$mode,$nlink,
359: $uid,$gid,$rdev,$size,
360: $atime,$mtime,$ctime,
361: $blksize,$blocks)=stat($fname);
362: my $now=time;
363: my $since=$now-$mtime;
364: if ($since>$perlvar{'lonExpire'}) {
365: my $line='';
366: if (open(PROBE,$fname)) {
367: $line=<PROBE>;
368: close(PROBE);
369: }
370: unless ($line=~/^CHECKOUTTOKEN\&/) {
371: $cleaned++;
372: unlink("$fname");
373: } else {
374: if ($since>365*$perlvar{'lonExpire'}) {
375: $cleaned++;
376: unlink("$fname");
377: } else { $old++; }
378: }
379: }
380: }
381: &log($fh,"Cleaned up ".$cleaned." files (".$old." old checkout tokens).");
382: }
383:
384: # ------------------------------------------------------------ clean out lonIDs
385: sub clean_lonIDs {
386: my ($fh)=@_;
387: &log($fh,'<hr /><a name="tokens" /><h2>Session Tokens</h2>');
388: my $cleaned=0;
389: my $active=0;
390: while (my $fname=<$perlvar{'lonIDsDir'}/*>) {
391: my ($dev,$ino,$mode,$nlink,
392: $uid,$gid,$rdev,$size,
393: $atime,$mtime,$ctime,
394: $blksize,$blocks)=stat($fname);
395: my $now=time;
396: my $since=$now-$mtime;
397: if ($since>$perlvar{'lonExpire'}) {
398: $cleaned++;
399: &log($fh,"Unlinking $fname<br>");
400: unlink("$fname");
401: } else {
402: $active++;
403: }
404: }
405: &log($fh,"<p>Cleaned up ".$cleaned." stale session token(s).</p>");
406: &log($fh,"<h3>$active open session(s)</h3>");
407: }
408:
409:
410: # ----------------------------------------------------------------------- httpd
411: sub check_httpd_logs {
412: my ($fh)=@_;
413: &log($fh,'<hr /><a name="httpd" /><h2>httpd</h2><h3>Access Log</h3><pre>');
414:
415: open (DFH,"tail -n25 /etc/httpd/logs/access_log|");
416: while (my $line=<DFH>) { &log($fh,&encode_entities($line,'<>&"')) };
417: close (DFH);
418:
419: &log($fh,"</pre><h3>Error Log</h3><pre>");
420:
421: open (DFH,"tail -n25 /etc/httpd/logs/error_log|");
422: while (my $line=<DFH>) {
423: &log($fh,"$line");
424: if ($line=~/\[error\]/) { $notices++; }
425: }
426: close (DFH);
427: &log($fh,"</pre>");
428: &errout($fh);
429: }
430:
431: # ---------------------------------------------------------------------- lonnet
432:
433: sub rotate_lonnet_logs {
434: my ($fh)=@_;
435: &log($fh,'<hr /><a name="lonnet" /><h2>lonnet</h2><h3>Temp Log</h3><pre>');
436: print "checking logs\n";
437: if (-e "$perlvar{'lonDaemons'}/logs/lonnet.log"){
438: open (DFH,"tail -n50 $perlvar{'lonDaemons'}/logs/lonnet.log|");
439: while (my $line=<DFH>) {
440: &log($fh,&encode_entities($line,'<>&"'));
441: }
442: close (DFH);
443: }
444: &log($fh,"</pre><h3>Perm Log</h3><pre>");
445:
446: if (-e "$perlvar{'lonDaemons'}/logs/lonnet.perm.log") {
447: open(DFH,"tail -n10 $perlvar{'lonDaemons'}/logs/lonnet.perm.log|");
448: while (my $line=<DFH>) {
449: &log($fh,&encode_entities($line,'<>&"'));
450: }
451: close (DFH);
452: } else { &log($fh,"No perm log\n") }
453:
454: my $fname="$perlvar{'lonDaemons'}/logs/lonnet.log";
455:
456: my ($dev,$ino,$mode,$nlink,
457: $uid,$gid,$rdev,$size,
458: $atime,$mtime,$ctime,
459: $blksize,$blocks)=stat($fname);
460:
461: if ($size>40000) {
462: &log($fh,"<p>Rotating logs ...</p>");
463: rename("$fname.2","$fname.3");
464: rename("$fname.1","$fname.2");
465: rename("$fname","$fname.1");
466: }
467:
468: &log($fh,"</pre>");
469: &errout($fh);
470: }
471:
472: # ----------------------------------------------------------------- Connections
473: sub test_connections {
474: my ($fh,$hostname)=@_;
475: &log($fh,'<hr /><a name="connections" /><h2>Connections</h2>');
476: print "testing connections\n";
477: &log($fh,"<table border='2'>");
478: my ($good,$bad)=(0,0);
479: foreach my $tryserver (sort(keys(%{$hostname}))) {
480: print(".");
481: my $result;
482: my $answer=reply("ping",$tryserver);
483: if ($answer eq "$tryserver:$perlvar{'lonHostID'}") {
484: $result="<b>ok</b>";
485: $good++;
486: } else {
487: $result=$answer;
488: $warnings++;
489: if ($answer eq 'con_lost') {
490: $bad++;
491: $warnings++;
492: } else {
493: $good++; #self connection
494: }
495: }
496: if ($answer =~ /con_lost/) { print(" $tryserver down\n"); }
497: &log($fh,"<tr><td>$tryserver</td><td>$result</td></tr>\n");
498: }
499: &log($fh,"</table>");
500: print "\n$good good, $bad bad connections\n";
501: &errout($fh);
502: }
503:
504:
505: # ------------------------------------------------------------ Delayed messages
506: sub check_delayed_msg {
507: my ($fh)=@_;
508: &log($fh,'<hr /><a name="delayed" /><h2>Delayed Messages</h2>');
509: print "checking buffers\n";
510:
511: &log($fh,'<h3>Scanning Permanent Log</h3>');
512:
513: my $unsend=0;
514:
515: my $dfh=IO::File->new("$perlvar{'lonDaemons'}/logs/lonnet.perm.log");
516: while (my $line=<$dfh>) {
517: my ($time,$sdf,$dserv,$dcmd)=split(/:/,$line);
518: if ($sdf eq 'F') {
519: my $local=localtime($time);
520: &log($fh,"<b>Failed: $time, $dserv, $dcmd</b><br>");
521: $warnings++;
522: }
523: if ($sdf eq 'S') { $unsend--; }
524: if ($sdf eq 'D') { $unsend++; }
525: }
526:
527: &log($fh,"<p>Total unsend messages: <b>$unsend</b></p>\n");
528: $warnings=$warnings+5*$unsend;
529:
530: if ($unsend) { $simplestatus{'unsend'}=$unsend; }
531: &log($fh,"<h3>Outgoing Buffer</h3>\n<pre>");
532:
533: open (DFH,"ls -lF $perlvar{'lonSockDir'}/delayed|");
534: while (my $line=<DFH>) {
535: &log($fh,&encode_entities($line,'<>&"'));
536: }
537: &log($fh,"</pre>\n");
538: close (DFH);
539: }
540:
541: sub finish_logging {
542: my ($fh)=@_;
543: &log($fh,"<a name='errcount' />\n");
544: $totalcount=$notices+4*$warnings+100*$errors;
545: &errout($fh);
546: &log($fh,"<h1>Total Error Count: $totalcount</h1>");
547: my $now=time;
548: my $date=localtime($now);
549: &log($fh,"<hr />$date ($now)</body></html>\n");
550: print "lon-status webpage updated\n";
551: $fh->close();
552:
553: if ($errors) { $simplestatus{'errors'}=$errors; }
554: if ($warnings) { $simplestatus{'warnings'}=$warnings; }
555: if ($notices) { $simplestatus{'notices'}=$notices; }
556: $simplestatus{'time'}=time;
557: }
558:
559: sub log_simplestatus {
560: rename ("$statusdir/newstatus.html","$statusdir/index.html");
561:
562: my $sfh=IO::File->new(">$statusdir/loncron_simple.txt");
563: foreach (keys %simplestatus) {
564: print $sfh $_.'='.$simplestatus{$_}.'&';
565: }
566: print $sfh "\n";
567: $sfh->close();
568: }
569:
570: sub send_mail {
571: print "sending mail\n";
572: my $emailto="$perlvar{'lonAdmEMail'}";
573: if ($totalcount>2500) {
574: $emailto.=",$perlvar{'lonSysEMail'}";
575: }
576: my $subj="LON: $perlvar{'lonHostID'} E:$errors W:$warnings N:$notices";
577:
578: my $result=system("metasend -b -S 4000000 -t $emailto -s '$subj' -f $statusdir/index.html -m text/html >& /dev/null");
579: if ($result != 0) {
580: $result=system("mail -s '$subj' $emailto < $statusdir/index.html");
581: }
582: }
583:
584: sub usage {
585: print(<<USAGE);
586: loncron - housekeeping program that checks up on various parts of Lon-CAPA
587:
588: Options:
589: --help Display help
590: --oldlonc When starting the lonc daemon use 'lonc' not 'loncnew'
591: --noemail Do not send the status email
592: --justcheckconnections Only check the current status of the lonc/d
593: connections, do not send emails do not
594: check if the daemons are running, do not
595: generate lon-status
596: --justcheckdaemons Only check that all of the Lon-CAPA daemons are
597: running, do not send emails do not
598: check the lonc/d connections, do not
599: generate lon-status
600: --justreload Only tell the daemons to reload the config files,
601: do not send emails do not
602: check if the daemons are running, do not
603: generate lon-status
604:
605: USAGE
606: }
607:
608: # ================================================================ Main Program
609: sub main () {
610: my ($oldlonc,$help,$justcheckdaemons,$noemail,$justcheckconnections,
611: $justreload);
612: &GetOptions("help" => \$help,
613: "oldlonc" => \$oldlonc,
614: "justcheckdaemons" => \$justcheckdaemons,
615: "noemail" => \$noemail,
616: "justcheckconnections" => \$justcheckconnections,
617: "justreload" => \$justreload
618: );
619: if ($help) { &usage(); return; }
620: # --------------------------------- Read loncapa_apache.conf and loncapa.conf
621: my $perlvarref=LONCAPA::Configuration::read_conf('loncapa.conf');
622: %perlvar=%{$perlvarref};
623: undef $perlvarref;
624: delete $perlvar{'lonReceipt'}; # remove since sensitive and not needed
625: delete $perlvar{'lonSqlAccess'}; # remove since sensitive and not needed
626:
627: # --------------------------------------- Make sure that LON-CAPA is configured
628: # I only test for one thing here (lonHostID). This is just a safeguard.
629: if ('{[[[[lonHostID]]]]}' eq $perlvar{'lonHostID'}) {
630: print("Unconfigured machine.\n");
631: my $emailto=$perlvar{'lonSysEMail'};
632: my $hostname=`/bin/hostname`;
633: chop $hostname;
634: $hostname=~s/[^\w\.]//g; # make sure is safe to pass through shell
635: my $subj="LON: Unconfigured machine $hostname";
636: system("echo 'Unconfigured machine $hostname.' |\
637: mailto $emailto -s '$subj' > /dev/null");
638: exit 1;
639: }
640:
641: # ----------------------------- Make sure this process is running from user=www
642: my $wwwid=getpwnam('www');
643: if ($wwwid!=$<) {
644: print("User ID mismatch. This program must be run as user 'www'\n");
645: my $emailto="$perlvar{'lonAdmEMail'},$perlvar{'lonSysEMail'}";
646: my $subj="LON: $perlvar{'lonHostID'} User ID mismatch";
647: system("echo 'User ID mismatch. loncron must be run as user www.' |\
648: mailto $emailto -s '$subj' > /dev/null");
649: exit 1;
650: }
651:
652: # ------------------------------------------------------------- Read hosts file
653: my $config=IO::File->new("$perlvar{'lonTabDir'}/hosts.tab");
654:
655: my (%hostname,%hostdom,%hostrole,%spareid);
656: while (my $configline=<$config>) {
657: next if ($configline =~ /^(\#|\s*\$)/);
658: my ($id,$domain,$role,$name)=split(/:/,$configline);
659: if ($id && $domain && $role && $name) {
660: $name=~s/\s//g;
661: $hostname{$id}=$name;
662: $hostdom{$id}=$domain;
663: $hostrole{$id}=$role;
664: }
665: }
666: undef $config;
667:
668: # ------------------------------------------------------ Read spare server file
669: $config=IO::File->new("$perlvar{'lonTabDir'}/spare.tab");
670:
671: while (my $configline=<$config>) {
672: chomp($configline);
673: if (($configline) && ($configline ne $perlvar{'lonHostID'})) {
674: $spareid{$configline}=1;
675: }
676: }
677: undef $config;
678:
679: # ---------------------------------------------------------------- Start report
680:
681: $errors=0;
682: $warnings=0;
683: $notices=0;
684:
685:
686: my $fh;
687: if (!$justcheckdaemons && !$justcheckconnections && !$justreload) {
688: $fh=&start_logging(\%hostdom,\%hostrole,\%hostname,\%spareid);
689:
690: &log_machine_info($fh);
691: &clean_tmp($fh);
692: &clean_lonIDs($fh);
693: &check_httpd_logs($fh);
694: &rotate_lonnet_logs($fh);
695: }
696: if (!$justcheckconnections && !$justreload) {
697: &checkon_daemon($fh,'lonsql',200000);
698: &checkon_daemon($fh,'lond',40000,'USR1');
699: my $args='new';
700: if ($oldlonc) { $args = ''; }
701: &checkon_daemon($fh,'lonc',40000,'USR1',$args);
702: &checkon_daemon($fh,'lonhttpd',40000);
703: &checkon_daemon($fh,'lonmemcached',40000);
704: }
705: if ($justreload) {
706: &checkon_daemon($fh,'lond',40000,'USR2');
707: my $args='new';
708: if ($oldlonc) { $args = ''; }
709: &checkon_daemon($fh,'lonc',40000,'USR2',$args);
710: }
711: if (!$justcheckdaemons && !$justreload) {
712: &test_connections($fh,\%hostname);
713: }
714: if (!$justcheckdaemons && !$justcheckconnections && !$justreload) {
715: &check_delayed_msg($fh);
716: &finish_logging($fh);
717: &log_simplestatus();
718:
719: if ($totalcount>200 && !$noemail) { &send_mail(); }
720: }
721: }
722:
723: &main();
724: 1;
725:
726:
727:
728:
729:
730:
731:
732:
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