File:
[LON-CAPA] /
loncom /
loncron
Revision
1.76:
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Fri Jun 22 00:20:27 2007 UTC (16 years, 10 months ago) by
albertel
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MAIN
CVS tags:
version_2_7_X,
version_2_7_1,
version_2_7_0,
version_2_6_X,
version_2_6_99_1,
version_2_6_99_0,
version_2_6_3,
version_2_6_2,
version_2_6_1,
version_2_6_0,
version_2_5_X,
version_2_5_99_1,
version_2_5_99_0,
version_2_5_2,
version_2_5_1,
version_2_5_0,
version_2_4_99_0,
HEAD
- lond needs lonmenmecached so start it first
1: #!/usr/bin/perl
2:
3: # Housekeeping program, started by cron, loncontrol and loncron.pl
4: #
5: # $Id: loncron,v 1.76 2007/06/22 00:20:27 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: use Apache::lonnet;
36:
37: use IO::File;
38: use IO::Socket;
39: use HTML::Entities;
40: use Getopt::Long;
41: #globals
42: use vars qw (%perlvar %simplestatus $errors $warnings $notices $totalcount);
43:
44: my $statusdir="/home/httpd/html/lon-status";
45:
46:
47: # --------------------------------------------------------- Output error status
48:
49: sub log {
50: my $fh=shift;
51: if ($fh) { print $fh @_ }
52: }
53:
54: sub errout {
55: my $fh=shift;
56: &log($fh,(<<ENDERROUT));
57: <table border="2" bgcolor="#CCCCCC">
58: <tr><td>Notices</td><td>$notices</td></tr>
59: <tr><td>Warnings</td><td>$warnings</td></tr>
60: <tr><td>Errors</td><td>$errors</td></tr>
61: </table><p><a href="#top">Top</a></p>
62: ENDERROUT
63: }
64:
65: sub rotate_logfile {
66: my ($file,$fh,$description) = @_;
67: my $size=(stat($file))[7];
68: if ($size>40000) {
69: &log($fh,"<p>Rotating $description ...</p>");
70: rename("$file.2","$file.3");
71: rename("$file.1","$file.2");
72: rename("$file","$file.1");
73: }
74: }
75:
76: sub start_daemon {
77: my ($fh,$daemon,$pidfile,$args) = @_;
78: my $progname=$daemon;
79: if ($daemon eq 'lonc') {
80: $progname='loncnew';
81: }
82: my $error_fname="$perlvar{'lonDaemons'}/logs/${daemon}_errors";
83: &rotate_logfile($error_fname,$fh,'error logs');
84: if ($daemon eq 'lonc') {
85: &clean_sockets($fh);
86: }
87: system("$perlvar{'lonDaemons'}/$progname 2>$perlvar{'lonDaemons'}/logs/${daemon}_errors");
88: sleep 1;
89: if (-e $pidfile) {
90: &log($fh,"<p>Seems like it started ...</p>");
91: my $lfh=IO::File->new("$pidfile");
92: my $daemonpid=<$lfh>;
93: chomp($daemonpid);
94: if ($daemonpid =~ /^\d+$/ && kill 0 => $daemonpid) {
95: return 1;
96: } else {
97: return 0;
98: }
99: }
100: &log($fh,"<p>Seems like that did not work!</p>");
101: $errors++;
102: return 0;
103: }
104:
105: sub checkon_daemon {
106: my ($fh,$daemon,$maxsize,$send,$args)=@_;
107:
108: my $result;
109: &log($fh,'<hr /><a name="'.$daemon.'" /><h2>'.$daemon.'</h2><h3>Log</h3><p style="white-space: pre;"><tt>');
110: printf("%-15s ",$daemon);
111: if (-e "$perlvar{'lonDaemons'}/logs/$daemon.log"){
112: open (DFH,"tail -n25 $perlvar{'lonDaemons'}/logs/$daemon.log|");
113: while (my $line=<DFH>) {
114: &log($fh,"$line");
115: if ($line=~/INFO/) { $notices++; }
116: if ($line=~/WARNING/) { $notices++; }
117: if ($line=~/CRITICAL/) { $warnings++; }
118: };
119: close (DFH);
120: }
121: &log($fh,"</tt></p>");
122:
123: my $pidfile="$perlvar{'lonDaemons'}/logs/$daemon.pid";
124:
125: my $restartflag=1;
126: my $daemonpid;
127: if (-e $pidfile) {
128: my $lfh=IO::File->new("$pidfile");
129: $daemonpid=<$lfh>;
130: chomp($daemonpid);
131: if ($daemonpid =~ /^\d+$/ && kill 0 => $daemonpid) {
132: &log($fh,"<h3>$daemon at pid $daemonpid responding");
133: if ($send) { &log($fh,", sending $send"); }
134: &log($fh,"</h3>");
135: if ($send eq 'USR1') { kill USR1 => $daemonpid; }
136: if ($send eq 'USR2') { kill USR2 => $daemonpid; }
137: $restartflag=0;
138: if ($send eq 'USR2') {
139: $result = 'reloaded';
140: print "reloaded\n";
141: } else {
142: $result = 'running';
143: print "running\n";
144: }
145: } else {
146: $errors++;
147: &log($fh,"<h3>$daemon at pid $daemonpid not responding</h3>");
148: $restartflag=1;
149: &log($fh,"<h3>Decided to clean up stale .pid file and restart $daemon</h3>");
150: }
151: }
152: if ($restartflag==1) {
153: $simplestatus{$daemon}='off';
154: $errors++;
155: my $kadaemon=$daemon;
156: if ($kadaemon eq 'lonmemcached') { $kadaemon='memcached'; }
157: &log($fh,'<br><font color="red">Killall '.$daemon.': '.
158: `killall $kadaemon 2>&1`.' - ');
159: sleep 1;
160: &log($fh,unlink($pidfile).' - '.
161: `killall -9 $kadaemon 2>&1`.
162: '</font><br>');
163: &log($fh,"<h3>$daemon not running, trying to start</h3>");
164:
165: if (&start_daemon($fh,$daemon,$pidfile,$args)) {
166: &log($fh,"<h3>$daemon at pid $daemonpid responding</h3>");
167: $simplestatus{$daemon}='restarted';
168: $result = 'started';
169: print "started\n";
170: } else {
171: $errors++;
172: &log($fh,"<h3>$daemon at pid $daemonpid not responding</h3>");
173: &log($fh,"<p>Give it one more try ...</p>");
174: print " ";
175: if (&start_daemon($fh,$daemon,$pidfile,$args)) {
176: &log($fh,"<h3>$daemon at pid $daemonpid responding</h3>");
177: $simplestatus{$daemon}='restarted';
178: $result = 'started';
179: print "started\n";
180: } else {
181: $result = 'failed';
182: print " failed\n";
183: $simplestatus{$daemon}='failed';
184: $errors++; $errors++;
185: &log($fh,"<h3>$daemon at pid $daemonpid not responding</h3>");
186: &log($fh,"<p>Unable to start $daemon</p>");
187: }
188: }
189:
190: if (-e "$perlvar{'lonDaemons'}/logs/$daemon.log"){
191: &log($fh,"<p><pre>");
192: open (DFH,"tail -n100 $perlvar{'lonDaemons'}/logs/$daemon.log|");
193: while (my $line=<DFH>) {
194: &log($fh,"$line");
195: if ($line=~/WARNING/) { $notices++; }
196: if ($line=~/CRITICAL/) { $notices++; }
197: };
198: close (DFH);
199: &log($fh,"</pre></p>");
200: }
201: }
202:
203: my $fname="$perlvar{'lonDaemons'}/logs/$daemon.log";
204: &rotate_logfile($fname,$fh,'logs');
205:
206: &errout($fh);
207: return $result;
208: }
209:
210: # --------------------------------------------------------------------- Machine
211: sub log_machine_info {
212: my ($fh)=@_;
213: &log($fh,'<hr /><a name="machine" /><h2>Machine Information</h2>');
214: &log($fh,"<h3>loadavg</h3>");
215:
216: open (LOADAVGH,"/proc/loadavg");
217: my $loadavg=<LOADAVGH>;
218: close (LOADAVGH);
219:
220: &log($fh,"<tt>$loadavg</tt>");
221:
222: my @parts=split(/\s+/,$loadavg);
223: if ($parts[1]>4.0) {
224: $errors++;
225: } elsif ($parts[1]>2.0) {
226: $warnings++;
227: } elsif ($parts[1]>1.0) {
228: $notices++;
229: }
230:
231: &log($fh,"<h3>df</h3>");
232: &log($fh,"<pre>");
233:
234: open (DFH,"df|");
235: while (my $line=<DFH>) {
236: &log($fh,&encode_entities($line,'<>&"'));
237: @parts=split(/\s+/,$line);
238: my $usage=$parts[4];
239: $usage=~s/\W//g;
240: if ($usage>90) {
241: $warnings++;
242: $notices++;
243: } elsif ($usage>80) {
244: $warnings++;
245: } elsif ($usage>60) {
246: $notices++;
247: }
248: if ($usage>95) { $warnings++; $warnings++; $simplestatus{'diskfull'}++; }
249: }
250: close (DFH);
251: &log($fh,"</pre>");
252:
253:
254: &log($fh,"<h3>ps</h3>");
255: &log($fh,"<pre>");
256: my $psproc=0;
257:
258: open (PSH,"ps aux --cols 140 |");
259: while (my $line=<PSH>) {
260: &log($fh,&encode_entities($line,'<>&"'));
261: $psproc++;
262: }
263: close (PSH);
264: &log($fh,"</pre>");
265:
266: if ($psproc>200) { $notices++; }
267: if ($psproc>250) { $notices++; }
268:
269: &log($fh,"<h3>distprobe</h3>");
270: &log($fh,"<pre>");
271: open(DSH,"$perlvar{'lonDaemons'}/distprobe |");
272: while (my $line=<DSH>) {
273: &log($fh,&encode_entities($line,'<>&"'));
274: $psproc++;
275: }
276: close(DSH);
277: &log($fh,"</pre>");
278:
279: &errout($fh);
280: }
281:
282: sub start_logging {
283: my $fh=IO::File->new(">$statusdir/newstatus.html");
284: my %simplestatus=();
285: my $now=time;
286: my $date=localtime($now);
287:
288:
289: &log($fh,(<<ENDHEADERS));
290: <html>
291: <head>
292: <title>LON Status Report $perlvar{'lonHostID'}</title>
293: </head>
294: <body bgcolor="#AAAAAA">
295: <a name="top" />
296: <h1>LON Status Report $perlvar{'lonHostID'}</h1>
297: <h2>$date ($now)</h2>
298: <ol>
299: <li><a href="#configuration">Configuration</a></li>
300: <li><a href="#machine">Machine Information</a></li>
301: <li><a href="#tmp">Temporary Files</a></li>
302: <li><a href="#tokens">Session Tokens</a></li>
303: <li><a href="#httpd">httpd</a></li>
304: <li><a href="#lonsql">lonsql</a></li>
305: <li><a href="#lond">lond</a></li>
306: <li><a href="#lonc">lonc</a></li>
307: <li><a href="#lonhttpd">lonhttpd</a></li>
308: <li><a href="#lonnet">lonnet</a></li>
309: <li><a href="#connections">Connections</a></li>
310: <li><a href="#delayed">Delayed Messages</a></li>
311: <li><a href="#errcount">Error Count</a></li>
312: </ol>
313: <hr />
314: <a name="configuration" />
315: <h2>Configuration</h2>
316: <h3>PerlVars</h3>
317: <table border="2">
318: ENDHEADERS
319:
320: foreach my $varname (sort(keys(%perlvar))) {
321: &log($fh,"<tr><td>$varname</td><td>".
322: &encode_entities($perlvar{$varname},'<>&"')."</td></tr>\n");
323: }
324: &log($fh,"</table><h3>Hosts</h3><table border='2'>");
325: my %hostname = &Apache::lonnet::all_hostnames();
326: foreach my $id (sort(keys(%hostname))) {
327: my $role = (&Apache::lonnet::is_library($id) ? 'library'
328: : 'access');
329: &log($fh,
330: "<tr><td>$id</td><td>".&Apache::lonnet::host_domain($id).
331: "</td><td>".$role.
332: "</td><td>".&Apache::lonnet::hostname($id)."</td></tr>\n");
333: }
334: &log($fh,"</table><h3>Spare Hosts</h3><ul>");
335: foreach my $type (sort(keys(%Apache::lonnet::spareid))) {
336: &log($fh,"<li>$type\n<ol>");
337: foreach my $id (@{ $Apache::lonnet::spareid{$type} }) {
338: &log($fh,"<li>$id</li>\n");
339: }
340: &log($fh,"</ol>\n</li>\n");
341: }
342: &log($fh,"</ul>\n");
343: return $fh;
344: }
345:
346: # --------------------------------------------------------------- clean out tmp
347: sub clean_tmp {
348: my ($fh)=@_;
349: &log($fh,'<hr /><a name="tmp" /><h2>Temporary Files</h2>');
350: my $cleaned=0;
351: my $old=0;
352: while (my $fname=<$perlvar{'lonDaemons'}/tmp/*>) {
353: my ($dev,$ino,$mode,$nlink,
354: $uid,$gid,$rdev,$size,
355: $atime,$mtime,$ctime,
356: $blksize,$blocks)=stat($fname);
357: my $now=time;
358: my $since=$now-$mtime;
359: if ($since>$perlvar{'lonExpire'}) {
360: my $line='';
361: if (open(PROBE,$fname)) {
362: $line=<PROBE>;
363: close(PROBE);
364: }
365: unless ($line=~/^CHECKOUTTOKEN\&/) {
366: $cleaned++;
367: unlink("$fname");
368: } else {
369: if ($since>365*$perlvar{'lonExpire'}) {
370: $cleaned++;
371: unlink("$fname");
372: } else { $old++; }
373: }
374: }
375: }
376: &log($fh,"Cleaned up ".$cleaned." files (".$old." old checkout tokens).");
377: }
378:
379: # ------------------------------------------------------------ clean out lonIDs
380: sub clean_lonIDs {
381: my ($fh)=@_;
382: &log($fh,'<hr /><a name="tokens" /><h2>Session Tokens</h2>');
383: my $cleaned=0;
384: my $active=0;
385: while (my $fname=<$perlvar{'lonIDsDir'}/*>) {
386: my ($dev,$ino,$mode,$nlink,
387: $uid,$gid,$rdev,$size,
388: $atime,$mtime,$ctime,
389: $blksize,$blocks)=stat($fname);
390: my $now=time;
391: my $since=$now-$mtime;
392: if ($since>$perlvar{'lonExpire'}) {
393: $cleaned++;
394: &log($fh,"Unlinking $fname<br>");
395: unlink("$fname");
396: } else {
397: $active++;
398: }
399: }
400: &log($fh,"<p>Cleaned up ".$cleaned." stale session token(s).</p>");
401: &log($fh,"<h3>$active open session(s)</h3>");
402: }
403:
404: # ----------------------------------------------------------- clean out sockets
405: sub clean_sockets {
406: my ($fh)=@_;
407: my $cleaned=0;
408: opendir(SOCKETS,$perlvar{'lonSockDir'});
409: while (my $fname=readdir(SOCKETS)) {
410: next if (-d $fname
411: || $fname=~/(mysqlsock|maximasock|\Q$perlvar{'lonSockDir'}\E)/);
412: $cleaned++;
413: &log($fh,"Unlinking $fname<br />");
414: unlink("/home/httpd/sockets/$fname");
415: }
416: &log($fh,"<p>Cleaned up ".$cleaned." stale sockets.</p>");
417: }
418:
419:
420: # ----------------------------------------------------------------------- httpd
421: sub check_httpd_logs {
422: my ($fh)=@_;
423: &log($fh,'<hr /><a name="httpd" /><h2>httpd</h2><h3>Access Log</h3><pre>');
424:
425: open (DFH,"tail -n25 /etc/httpd/logs/access_log|");
426: while (my $line=<DFH>) { &log($fh,&encode_entities($line,'<>&"')) };
427: close (DFH);
428:
429: &log($fh,"</pre><h3>Error Log</h3><pre>");
430:
431: open (DFH,"tail -n25 /etc/httpd/logs/error_log|");
432: while (my $line=<DFH>) {
433: &log($fh,"$line");
434: if ($line=~/\[error\]/) { $notices++; }
435: }
436: close (DFH);
437: &log($fh,"</pre>");
438: &errout($fh);
439: }
440:
441: # ---------------------------------------------------------------------- lonnet
442:
443: sub rotate_lonnet_logs {
444: my ($fh)=@_;
445: &log($fh,'<hr /><a name="lonnet" /><h2>lonnet</h2><h3>Temp Log</h3><pre>');
446: print "checking logs\n";
447: if (-e "$perlvar{'lonDaemons'}/logs/lonnet.log"){
448: open (DFH,"tail -n50 $perlvar{'lonDaemons'}/logs/lonnet.log|");
449: while (my $line=<DFH>) {
450: &log($fh,&encode_entities($line,'<>&"'));
451: }
452: close (DFH);
453: }
454: &log($fh,"</pre><h3>Perm Log</h3><pre>");
455:
456: if (-e "$perlvar{'lonDaemons'}/logs/lonnet.perm.log") {
457: open(DFH,"tail -n10 $perlvar{'lonDaemons'}/logs/lonnet.perm.log|");
458: while (my $line=<DFH>) {
459: &log($fh,&encode_entities($line,'<>&"'));
460: }
461: close (DFH);
462: } else { &log($fh,"No perm log\n") }
463:
464: my $fname="$perlvar{'lonDaemons'}/logs/lonnet.log";
465: &rotate_logfile($fname,$fh,'lonnet log');
466:
467: &log($fh,"</pre>");
468: &errout($fh);
469: }
470:
471: sub rotate_other_logs {
472: my ($fh) = @_;
473: my $fname="$perlvar{'lonDaemons'}/logs/autoenroll.log";
474: &rotate_logfile($fname,$fh,'Auto Enroll log');
475: $fname="$perlvar{'lonDaemons'}/logs/autocreate.log";
476: &rotate_logfile($fname,$fh,'Create Course log');
477: $fname="$perlvar{'lonDaemons'}/logs/searchcat.log";
478: &rotate_logfile($fname,$fh,'Search Cataloguing log');
479: }
480:
481: # ----------------------------------------------------------------- Connections
482: sub test_connections {
483: my ($fh)=@_;
484: &log($fh,'<hr /><a name="connections" /><h2>Connections</h2>');
485: print "testing connections\n";
486: &log($fh,"<table border='2'>");
487: my ($good,$bad)=(0,0);
488: my %hostname = &Apache::lonnet::all_hostnames();
489: foreach my $tryserver (sort(keys(%hostname))) {
490: print(".");
491: my $result;
492: my $answer=&Apache::lonnet::reply("ping",$tryserver);
493: if ($answer eq "$tryserver:$perlvar{'lonHostID'}") {
494: $result="<b>ok</b>";
495: $good++;
496: } else {
497: $result=$answer;
498: $warnings++;
499: if ($answer eq 'con_lost') {
500: $bad++;
501: $warnings++;
502: } else {
503: $good++; #self connection
504: }
505: }
506: if ($answer =~ /con_lost/) { print(" $tryserver down\n"); }
507: &log($fh,"<tr><td>$tryserver</td><td>$result</td></tr>\n");
508: }
509: &log($fh,"</table>");
510: print "\n$good good, $bad bad connections\n";
511: &errout($fh);
512: }
513:
514:
515: # ------------------------------------------------------------ Delayed messages
516: sub check_delayed_msg {
517: my ($fh)=@_;
518: &log($fh,'<hr /><a name="delayed" /><h2>Delayed Messages</h2>');
519: print "checking buffers\n";
520:
521: &log($fh,'<h3>Scanning Permanent Log</h3>');
522:
523: my $unsend=0;
524:
525: my $dfh=IO::File->new("$perlvar{'lonDaemons'}/logs/lonnet.perm.log");
526: while (my $line=<$dfh>) {
527: my ($time,$sdf,$dserv,$dcmd)=split(/:/,$line);
528: if ($sdf eq 'F') {
529: my $local=localtime($time);
530: &log($fh,"<b>Failed: $time, $dserv, $dcmd</b><br>");
531: $warnings++;
532: }
533: if ($sdf eq 'S') { $unsend--; }
534: if ($sdf eq 'D') { $unsend++; }
535: }
536:
537: &log($fh,"<p>Total unsend messages: <b>$unsend</b></p>\n");
538: $warnings=$warnings+5*$unsend;
539:
540: if ($unsend) { $simplestatus{'unsend'}=$unsend; }
541: &log($fh,"<h3>Outgoing Buffer</h3>\n<pre>");
542: # list directory with delayed messages and remember offline servers
543: my %servers=();
544: open (DFH,"ls -lF $perlvar{'lonSockDir'}/delayed|");
545: while (my $line=<DFH>) {
546: my ($server)=($line=~/\.(\w+)$/);
547: if ($server) { $servers{$server}=1; }
548: &log($fh,&encode_entities($line,'<>&"'));
549: }
550: &log($fh,"</pre>\n");
551: close (DFH);
552: # pong to all servers that have delayed messages
553: # this will trigger a reverse connection, which should flush the buffers
554: foreach my $tryserver (keys %servers) {
555: my $answer=&Apache::lonnet::reply("pong",$tryserver);
556: &log($fh,"Pong to $tryserver: $answer<br />");
557: }
558: }
559:
560: sub finish_logging {
561: my ($fh)=@_;
562: &log($fh,"<a name='errcount' />\n");
563: $totalcount=$notices+4*$warnings+100*$errors;
564: &errout($fh);
565: &log($fh,"<h1>Total Error Count: $totalcount</h1>");
566: my $now=time;
567: my $date=localtime($now);
568: &log($fh,"<hr />$date ($now)</body></html>\n");
569: print "lon-status webpage updated\n";
570: $fh->close();
571:
572: if ($errors) { $simplestatus{'errors'}=$errors; }
573: if ($warnings) { $simplestatus{'warnings'}=$warnings; }
574: if ($notices) { $simplestatus{'notices'}=$notices; }
575: $simplestatus{'time'}=time;
576: }
577:
578: sub log_simplestatus {
579: rename("$statusdir/newstatus.html","$statusdir/index.html");
580:
581: my $sfh=IO::File->new(">$statusdir/loncron_simple.txt");
582: foreach (keys %simplestatus) {
583: print $sfh $_.'='.$simplestatus{$_}.'&';
584: }
585: print $sfh "\n";
586: $sfh->close();
587: }
588:
589: sub send_mail {
590: print "sending mail\n";
591: my $emailto="$perlvar{'lonAdmEMail'}";
592: if ($totalcount>2500) {
593: $emailto.=",$perlvar{'lonSysEMail'}";
594: }
595: my $subj="LON: $perlvar{'lonHostID'} E:$errors W:$warnings N:$notices";
596:
597: my $result=system("metasend -b -S 4000000 -t $emailto -s '$subj' -f $statusdir/index.html -m text/html >& /dev/null");
598: if ($result != 0) {
599: $result=system("mail -s '$subj' $emailto < $statusdir/index.html");
600: }
601: }
602:
603: sub usage {
604: print(<<USAGE);
605: loncron - housekeeping program that checks up on various parts of Lon-CAPA
606:
607: Options:
608: --help Display
609: --noemail Do not send the status email
610: --justcheckconnections Only check the current status of the lonc/d
611: connections, do not send emails do not
612: check if the daemons are running, do not
613: generate lon-status
614: --justcheckdaemons Only check that all of the Lon-CAPA daemons are
615: running, do not send emails do not
616: check the lonc/d connections, do not
617: generate lon-status
618: --justreload Only tell the daemons to reload the config files,
619: do not send emails do not
620: check if the daemons are running, do not
621: generate lon-status
622:
623: USAGE
624: }
625:
626: # ================================================================ Main Program
627: sub main () {
628: my ($help,$justcheckdaemons,$noemail,$justcheckconnections,
629: $justreload);
630: &GetOptions("help" => \$help,
631: "justcheckdaemons" => \$justcheckdaemons,
632: "noemail" => \$noemail,
633: "justcheckconnections" => \$justcheckconnections,
634: "justreload" => \$justreload
635: );
636: if ($help) { &usage(); return; }
637: # --------------------------------- Read loncapa_apache.conf and loncapa.conf
638: my $perlvarref=LONCAPA::Configuration::read_conf('loncapa.conf');
639: %perlvar=%{$perlvarref};
640: undef $perlvarref;
641: delete $perlvar{'lonReceipt'}; # remove since sensitive and not needed
642: delete $perlvar{'lonSqlAccess'}; # remove since sensitive and not needed
643: chdir($perlvar{'lonDaemons'});
644: # --------------------------------------- Make sure that LON-CAPA is configured
645: # I only test for one thing here (lonHostID). This is just a safeguard.
646: if ('{[[[[lonHostID]]]]}' eq $perlvar{'lonHostID'}) {
647: print("Unconfigured machine.\n");
648: my $emailto=$perlvar{'lonSysEMail'};
649: my $hostname=`/bin/hostname`;
650: chop $hostname;
651: $hostname=~s/[^\w\.]//g; # make sure is safe to pass through shell
652: my $subj="LON: Unconfigured machine $hostname";
653: system("echo 'Unconfigured machine $hostname.' |\
654: mailto $emailto -s '$subj' > /dev/null");
655: exit 1;
656: }
657:
658: # ----------------------------- Make sure this process is running from user=www
659: my $wwwid=getpwnam('www');
660: if ($wwwid!=$<) {
661: print("User ID mismatch. This program must be run as user 'www'\n");
662: my $emailto="$perlvar{'lonAdmEMail'},$perlvar{'lonSysEMail'}";
663: my $subj="LON: $perlvar{'lonHostID'} User ID mismatch";
664: system("echo 'User ID mismatch. loncron must be run as user www.' |\
665: mailto $emailto -s '$subj' > /dev/null");
666: exit 1;
667: }
668:
669: # -------------------------------------------- Force reload of host information
670: &Apache::lonnet::load_hosts_tab(1);
671: &Apache::lonnet::load_domain_tab(1);
672: &Apache::lonnet::get_iphost(1);
673:
674: # ---------------------------------------------------------------- Start report
675:
676: $errors=0;
677: $warnings=0;
678: $notices=0;
679:
680:
681: my $fh;
682: if (!$justcheckdaemons && !$justcheckconnections && !$justreload) {
683: $fh=&start_logging();
684:
685: &log_machine_info($fh);
686: &clean_tmp($fh);
687: &clean_lonIDs($fh);
688: &check_httpd_logs($fh);
689: &rotate_lonnet_logs($fh);
690: &rotate_other_logs($fh);
691: }
692: if (!$justcheckconnections && !$justreload) {
693: &checkon_daemon($fh,'lonmemcached',40000);
694: &checkon_daemon($fh,'lonsql',200000);
695: if ( &checkon_daemon($fh,'lond',40000,'USR1') eq 'running') {
696: &checkon_daemon($fh,'lond',40000,'USR2');
697: }
698: &checkon_daemon($fh,'lonc',40000,'USR1');
699: &checkon_daemon($fh,'lonhttpd',40000);
700: &checkon_daemon($fh,'lonmaxima',40000);
701: }
702: if ($justreload) {
703: &checkon_daemon($fh,'lond',40000,'USR2');
704: &checkon_daemon($fh,'lonc',40000,'USR2');
705: }
706: if ($justcheckconnections) {
707: &test_connections($fh);
708: }
709: if (!$justcheckdaemons && !$justcheckconnections && !$justreload) {
710: &check_delayed_msg($fh);
711: &finish_logging($fh);
712: &log_simplestatus();
713:
714: if ($totalcount>200 && !$noemail) { &send_mail(); }
715: }
716: }
717:
718: &main();
719: 1;
720:
721:
722:
723:
724:
725:
726:
727:
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