Annotation of loncom/loncron, revision 1.73
1.1 albertel 1: #!/usr/bin/perl
2:
1.47 albertel 3: # Housekeeping program, started by cron, loncontrol and loncron.pl
4: #
1.73 ! albertel 5: # $Id: loncron,v 1.72 2007/04/11 23:08:43 albertel Exp $
1.47 albertel 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/
1.1 albertel 28: #
1.24 www 29:
30: $|=1;
1.48 albertel 31: use strict;
1.1 albertel 32:
1.26 harris41 33: use lib '/home/httpd/lib/perl/';
34: use LONCAPA::Configuration;
1.72 albertel 35: use Apache::lonnet;
1.26 harris41 36:
1.1 albertel 37: use IO::File;
38: use IO::Socket;
1.48 albertel 39: use HTML::Entities;
1.49 albertel 40: use Getopt::Long;
1.46 albertel 41: #globals
42: use vars qw (%perlvar %simplestatus $errors $warnings $notices $totalcount);
43:
44: my $statusdir="/home/httpd/html/lon-status";
45:
1.1 albertel 46:
47: # --------------------------------------------------------- Output error status
48:
1.46 albertel 49: sub log {
50: my $fh=shift;
51: if ($fh) { print $fh @_ }
52: }
53:
1.1 albertel 54: sub errout {
55: my $fh=shift;
1.46 albertel 56: &log($fh,(<<ENDERROUT));
1.48 albertel 57: <table border="2" bgcolor="#CCCCCC">
1.1 albertel 58: <tr><td>Notices</td><td>$notices</td></tr>
59: <tr><td>Warnings</td><td>$warnings</td></tr>
60: <tr><td>Errors</td><td>$errors</td></tr>
1.48 albertel 61: </table><p><a href="#top">Top</a></p>
1.1 albertel 62: ENDERROUT
63: }
64:
1.73 ! albertel 65: sub rotate_logfile {
! 66: my ($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","$file.1");
! 73: }
! 74: }
! 75:
1.42 albertel 76: sub start_daemon {
1.50 albertel 77: my ($fh,$daemon,$pidfile,$args) = @_;
1.44 albertel 78: my $progname=$daemon;
1.71 albertel 79: if ($daemon eq 'lonc') {
1.44 albertel 80: $progname='loncnew';
81: }
1.51 albertel 82: my $error_fname="$perlvar{'lonDaemons'}/logs/${daemon}_errors";
1.73 ! albertel 83: &rotate_logfile($error_fname,$fh,'error logs');
! 84:
1.51 albertel 85: system("$perlvar{'lonDaemons'}/$progname 2>$perlvar{'lonDaemons'}/logs/${daemon}_errors");
1.60 albertel 86: sleep 1;
1.42 albertel 87: if (-e $pidfile) {
1.48 albertel 88: &log($fh,"<p>Seems like it started ...</p>");
1.42 albertel 89: my $lfh=IO::File->new("$pidfile");
90: my $daemonpid=<$lfh>;
91: chomp($daemonpid);
1.62 albertel 92: if ($daemonpid =~ /^\d+$/ && kill 0 => $daemonpid) {
1.42 albertel 93: return 1;
94: } else {
95: return 0;
96: }
97: }
1.48 albertel 98: &log($fh,"<p>Seems like that did not work!</p>");
1.42 albertel 99: $errors++;
100: return 0;
101: }
102:
103: sub checkon_daemon {
1.59 albertel 104: my ($fh,$daemon,$maxsize,$send,$args)=@_;
1.42 albertel 105:
1.63 albertel 106: my $result;
1.48 albertel 107: &log($fh,'<hr /><a name="'.$daemon.'" /><h2>'.$daemon.'</h2><h3>Log</h3><p style="white-space: pre;"><tt>');
1.57 albertel 108: printf("%-15s ",$daemon);
1.42 albertel 109: if (-e "$perlvar{'lonDaemons'}/logs/$daemon.log"){
110: open (DFH,"tail -n25 $perlvar{'lonDaemons'}/logs/$daemon.log|");
1.46 albertel 111: while (my $line=<DFH>) {
112: &log($fh,"$line");
1.42 albertel 113: if ($line=~/INFO/) { $notices++; }
114: if ($line=~/WARNING/) { $notices++; }
115: if ($line=~/CRITICAL/) { $warnings++; }
116: };
117: close (DFH);
118: }
1.48 albertel 119: &log($fh,"</tt></p>");
1.42 albertel 120:
121: my $pidfile="$perlvar{'lonDaemons'}/logs/$daemon.pid";
122:
123: my $restartflag=1;
1.46 albertel 124: my $daemonpid;
1.42 albertel 125: if (-e $pidfile) {
126: my $lfh=IO::File->new("$pidfile");
1.46 albertel 127: $daemonpid=<$lfh>;
1.42 albertel 128: chomp($daemonpid);
1.62 albertel 129: if ($daemonpid =~ /^\d+$/ && kill 0 => $daemonpid) {
1.46 albertel 130: &log($fh,"<h3>$daemon at pid $daemonpid responding");
1.59 albertel 131: if ($send) { &log($fh,", sending $send"); }
1.46 albertel 132: &log($fh,"</h3>");
1.59 albertel 133: if ($send eq 'USR1') { kill USR1 => $daemonpid; }
134: if ($send eq 'USR2') { kill USR2 => $daemonpid; }
1.42 albertel 135: $restartflag=0;
1.59 albertel 136: if ($send eq 'USR2') {
1.63 albertel 137: $result = 'reloaded';
1.59 albertel 138: print "reloaded\n";
139: } else {
1.63 albertel 140: $result = 'running';
1.59 albertel 141: print "running\n";
142: }
1.42 albertel 143: } else {
144: $errors++;
1.46 albertel 145: &log($fh,"<h3>$daemon at pid $daemonpid not responding</h3>");
1.42 albertel 146: $restartflag=1;
1.46 albertel 147: &log($fh,"<h3>Decided to clean up stale .pid file and restart $daemon</h3>");
1.42 albertel 148: }
149: }
150: if ($restartflag==1) {
151: $simplestatus{$daemon}='off';
152: $errors++;
1.57 albertel 153: my $kadaemon=$daemon;
154: if ($kadaemon eq 'lonmemcached') { $kadaemon='memcached'; }
1.46 albertel 155: &log($fh,'<br><font color="red">Killall '.$daemon.': '.
1.57 albertel 156: `killall $kadaemon 2>&1`.' - ');
1.60 albertel 157: sleep 1;
1.46 albertel 158: &log($fh,unlink($pidfile).' - '.
1.57 albertel 159: `killall -9 $kadaemon 2>&1`.
1.46 albertel 160: '</font><br>');
161: &log($fh,"<h3>$daemon not running, trying to start</h3>");
1.42 albertel 162:
1.50 albertel 163: if (&start_daemon($fh,$daemon,$pidfile,$args)) {
1.46 albertel 164: &log($fh,"<h3>$daemon at pid $daemonpid responding</h3>");
1.42 albertel 165: $simplestatus{$daemon}='restarted';
1.63 albertel 166: $result = 'started';
1.42 albertel 167: print "started\n";
168: } else {
169: $errors++;
1.46 albertel 170: &log($fh,"<h3>$daemon at pid $daemonpid not responding</h3>");
1.48 albertel 171: &log($fh,"<p>Give it one more try ...</p>");
1.42 albertel 172: print " ";
1.50 albertel 173: if (&start_daemon($fh,$daemon,$pidfile,$args)) {
1.46 albertel 174: &log($fh,"<h3>$daemon at pid $daemonpid responding</h3>");
1.42 albertel 175: $simplestatus{$daemon}='restarted';
1.63 albertel 176: $result = 'started';
1.42 albertel 177: print "started\n";
178: } else {
1.63 albertel 179: $result = 'failed';
1.42 albertel 180: print " failed\n";
181: $simplestatus{$daemon}='failed';
182: $errors++; $errors++;
1.46 albertel 183: &log($fh,"<h3>$daemon at pid $daemonpid not responding</h3>");
1.48 albertel 184: &log($fh,"<p>Unable to start $daemon</p>");
1.42 albertel 185: }
186: }
187:
188: if (-e "$perlvar{'lonDaemons'}/logs/$daemon.log"){
1.46 albertel 189: &log($fh,"<p><pre>");
1.42 albertel 190: open (DFH,"tail -n100 $perlvar{'lonDaemons'}/logs/$daemon.log|");
1.46 albertel 191: while (my $line=<DFH>) {
192: &log($fh,"$line");
1.42 albertel 193: if ($line=~/WARNING/) { $notices++; }
194: if ($line=~/CRITICAL/) { $notices++; }
195: };
196: close (DFH);
1.48 albertel 197: &log($fh,"</pre></p>");
1.42 albertel 198: }
199: }
200:
1.46 albertel 201: my $fname="$perlvar{'lonDaemons'}/logs/$daemon.log";
1.73 ! albertel 202: &rotate_logfile($fname,$fh,'logs');
1.42 albertel 203:
204: &errout($fh);
1.63 albertel 205: return $result;
1.42 albertel 206: }
1.1 albertel 207:
1.46 albertel 208: # --------------------------------------------------------------------- Machine
209: sub log_machine_info {
210: my ($fh)=@_;
1.48 albertel 211: &log($fh,'<hr /><a name="machine" /><h2>Machine Information</h2>');
1.46 albertel 212: &log($fh,"<h3>loadavg</h3>");
213:
214: open (LOADAVGH,"/proc/loadavg");
215: my $loadavg=<LOADAVGH>;
216: close (LOADAVGH);
217:
218: &log($fh,"<tt>$loadavg</tt>");
219:
220: my @parts=split(/\s+/,$loadavg);
221: if ($parts[1]>4.0) {
222: $errors++;
223: } elsif ($parts[1]>2.0) {
224: $warnings++;
225: } elsif ($parts[1]>1.0) {
226: $notices++;
227: }
1.13 harris41 228:
1.46 albertel 229: &log($fh,"<h3>df</h3>");
230: &log($fh,"<pre>");
1.14 harris41 231:
1.46 albertel 232: open (DFH,"df|");
233: while (my $line=<DFH>) {
1.48 albertel 234: &log($fh,&encode_entities($line,'<>&"'));
1.46 albertel 235: @parts=split(/\s+/,$line);
236: my $usage=$parts[4];
237: $usage=~s/\W//g;
238: if ($usage>90) {
239: $warnings++;
240: $notices++;
241: } elsif ($usage>80) {
242: $warnings++;
243: } elsif ($usage>60) {
244: $notices++;
1.31 albertel 245: }
1.46 albertel 246: if ($usage>95) { $warnings++; $warnings++; $simplestatus{'diskfull'}++; }
1.1 albertel 247: }
1.46 albertel 248: close (DFH);
249: &log($fh,"</pre>");
1.1 albertel 250:
251:
1.46 albertel 252: &log($fh,"<h3>ps</h3>");
253: &log($fh,"<pre>");
254: my $psproc=0;
1.1 albertel 255:
1.53 albertel 256: open (PSH,"ps aux --cols 140 |");
1.46 albertel 257: while (my $line=<PSH>) {
1.48 albertel 258: &log($fh,&encode_entities($line,'<>&"'));
1.46 albertel 259: $psproc++;
260: }
261: close (PSH);
262: &log($fh,"</pre>");
1.1 albertel 263:
1.46 albertel 264: if ($psproc>200) { $notices++; }
265: if ($psproc>250) { $notices++; }
1.1 albertel 266:
1.61 albertel 267: &log($fh,"<h3>distprobe</h3>");
268: &log($fh,"<pre>");
269: open(DSH,"$perlvar{'lonDaemons'}/distprobe |");
270: while (my $line=<DSH>) {
271: &log($fh,&encode_entities($line,'<>&"'));
272: $psproc++;
273: }
274: close(DSH);
275: &log($fh,"</pre>");
276:
1.46 albertel 277: &errout($fh);
278: }
1.1 albertel 279:
1.46 albertel 280: sub start_logging {
1.43 albertel 281: my $fh=IO::File->new(">$statusdir/newstatus.html");
282: my %simplestatus=();
1.46 albertel 283: my $now=time;
284: my $date=localtime($now);
1.43 albertel 285:
1.46 albertel 286:
287: &log($fh,(<<ENDHEADERS));
1.1 albertel 288: <html>
289: <head>
290: <title>LON Status Report $perlvar{'lonHostID'}</title>
291: </head>
1.3 www 292: <body bgcolor="#AAAAAA">
1.48 albertel 293: <a name="top" />
1.1 albertel 294: <h1>LON Status Report $perlvar{'lonHostID'}</h1>
295: <h2>$date ($now)</h2>
296: <ol>
1.48 albertel 297: <li><a href="#configuration">Configuration</a></li>
298: <li><a href="#machine">Machine Information</a></li>
299: <li><a href="#tmp">Temporary Files</a></li>
300: <li><a href="#tokens">Session Tokens</a></li>
301: <li><a href="#httpd">httpd</a></li>
302: <li><a href="#lonsql">lonsql</a></li>
303: <li><a href="#lond">lond</a></li>
304: <li><a href="#lonc">lonc</a></li>
305: <li><a href="#lonhttpd">lonhttpd</a></li>
306: <li><a href="#lonnet">lonnet</a></li>
307: <li><a href="#connections">Connections</a></li>
308: <li><a href="#delayed">Delayed Messages</a></li>
309: <li><a href="#errcount">Error Count</a></li>
1.1 albertel 310: </ol>
1.48 albertel 311: <hr />
312: <a name="configuration" />
1.1 albertel 313: <h2>Configuration</h2>
314: <h3>PerlVars</h3>
1.48 albertel 315: <table border="2">
1.1 albertel 316: ENDHEADERS
317:
1.46 albertel 318: foreach my $varname (sort(keys(%perlvar))) {
1.48 albertel 319: &log($fh,"<tr><td>$varname</td><td>".
320: &encode_entities($perlvar{$varname},'<>&"')."</td></tr>\n");
1.43 albertel 321: }
1.48 albertel 322: &log($fh,"</table><h3>Hosts</h3><table border='2'>");
1.72 albertel 323: my %hostname = &Apache::lonnet::all_hostnames();
324: foreach my $id (sort(keys(%hostname))) {
325: my $role = (&Apache::lonnet::is_library($id) ? 'library'
326: : 'access');
1.46 albertel 327: &log($fh,
1.72 albertel 328: "<tr><td>$id</td><td>".&Apache::lonnet::host_domain($id).
329: "</td><td>".$role.
330: "</td><td>".&Apache::lonnet::hostname($id)."</td></tr>\n");
331: }
332: &log($fh,"</table><h3>Spare Hosts</h3><ul>");
333: foreach my $type (sort(keys(%Apache::lonnet::spareid))) {
334: &log($fh,"<li>$type\n<ol>");
335: foreach my $id (@{ $Apache::lonnet::spareid{$type} }) {
336: &log($fh,"<li>$id</li>\n");
337: }
338: &log($fh,"</ol>\n</li>\n");
1.43 albertel 339: }
1.72 albertel 340: &log($fh,"</ul>\n");
1.46 albertel 341: return $fh;
342: }
1.11 www 343:
344: # --------------------------------------------------------------- clean out tmp
1.46 albertel 345: sub clean_tmp {
346: my ($fh)=@_;
1.48 albertel 347: &log($fh,'<hr /><a name="tmp" /><h2>Temporary Files</h2>');
1.46 albertel 348: my $cleaned=0;
349: my $old=0;
350: while (my $fname=<$perlvar{'lonDaemons'}/tmp/*>) {
1.43 albertel 351: my ($dev,$ino,$mode,$nlink,
352: $uid,$gid,$rdev,$size,
353: $atime,$mtime,$ctime,
354: $blksize,$blocks)=stat($fname);
1.46 albertel 355: my $now=time;
356: my $since=$now-$mtime;
1.43 albertel 357: if ($since>$perlvar{'lonExpire'}) {
1.46 albertel 358: my $line='';
1.43 albertel 359: if (open(PROBE,$fname)) {
360: $line=<PROBE>;
361: close(PROBE);
362: }
363: unless ($line=~/^CHECKOUTTOKEN\&/) {
364: $cleaned++;
365: unlink("$fname");
366: } else {
367: if ($since>365*$perlvar{'lonExpire'}) {
368: $cleaned++;
369: unlink("$fname");
370: } else { $old++; }
371: }
372: }
373: }
1.46 albertel 374: &log($fh,"Cleaned up ".$cleaned." files (".$old." old checkout tokens).");
375: }
1.11 www 376:
377: # ------------------------------------------------------------ clean out lonIDs
1.46 albertel 378: sub clean_lonIDs {
379: my ($fh)=@_;
1.48 albertel 380: &log($fh,'<hr /><a name="tokens" /><h2>Session Tokens</h2>');
1.46 albertel 381: my $cleaned=0;
382: my $active=0;
383: while (my $fname=<$perlvar{'lonIDsDir'}/*>) {
1.43 albertel 384: my ($dev,$ino,$mode,$nlink,
385: $uid,$gid,$rdev,$size,
386: $atime,$mtime,$ctime,
387: $blksize,$blocks)=stat($fname);
1.46 albertel 388: my $now=time;
389: my $since=$now-$mtime;
1.43 albertel 390: if ($since>$perlvar{'lonExpire'}) {
391: $cleaned++;
1.46 albertel 392: &log($fh,"Unlinking $fname<br>");
1.43 albertel 393: unlink("$fname");
394: } else {
395: $active++;
396: }
1.46 albertel 397: }
1.48 albertel 398: &log($fh,"<p>Cleaned up ".$cleaned." stale session token(s).</p>");
1.46 albertel 399: &log($fh,"<h3>$active open session(s)</h3>");
400: }
1.43 albertel 401:
1.11 www 402:
1.1 albertel 403: # ----------------------------------------------------------------------- httpd
1.46 albertel 404: sub check_httpd_logs {
405: my ($fh)=@_;
1.48 albertel 406: &log($fh,'<hr /><a name="httpd" /><h2>httpd</h2><h3>Access Log</h3><pre>');
1.43 albertel 407:
408: open (DFH,"tail -n25 /etc/httpd/logs/access_log|");
1.48 albertel 409: while (my $line=<DFH>) { &log($fh,&encode_entities($line,'<>&"')) };
1.43 albertel 410: close (DFH);
1.46 albertel 411:
412: &log($fh,"</pre><h3>Error Log</h3><pre>");
413:
1.43 albertel 414: open (DFH,"tail -n25 /etc/httpd/logs/error_log|");
1.46 albertel 415: while (my $line=<DFH>) {
416: &log($fh,"$line");
1.43 albertel 417: if ($line=~/\[error\]/) { $notices++; }
1.46 albertel 418: }
1.43 albertel 419: close (DFH);
1.46 albertel 420: &log($fh,"</pre>");
1.43 albertel 421: &errout($fh);
1.46 albertel 422: }
1.1 albertel 423:
424: # ---------------------------------------------------------------------- lonnet
425:
1.48 albertel 426: sub rotate_lonnet_logs {
1.46 albertel 427: my ($fh)=@_;
1.48 albertel 428: &log($fh,'<hr /><a name="lonnet" /><h2>lonnet</h2><h3>Temp Log</h3><pre>');
1.43 albertel 429: print "checking logs\n";
430: if (-e "$perlvar{'lonDaemons'}/logs/lonnet.log"){
431: open (DFH,"tail -n50 $perlvar{'lonDaemons'}/logs/lonnet.log|");
1.46 albertel 432: while (my $line=<DFH>) {
1.48 albertel 433: &log($fh,&encode_entities($line,'<>&"'));
1.46 albertel 434: }
1.43 albertel 435: close (DFH);
436: }
1.46 albertel 437: &log($fh,"</pre><h3>Perm Log</h3><pre>");
1.43 albertel 438:
439: if (-e "$perlvar{'lonDaemons'}/logs/lonnet.perm.log") {
440: open(DFH,"tail -n10 $perlvar{'lonDaemons'}/logs/lonnet.perm.log|");
1.46 albertel 441: while (my $line=<DFH>) {
1.48 albertel 442: &log($fh,&encode_entities($line,'<>&"'));
1.46 albertel 443: }
1.43 albertel 444: close (DFH);
1.46 albertel 445: } else { &log($fh,"No perm log\n") }
1.43 albertel 446:
1.46 albertel 447: my $fname="$perlvar{'lonDaemons'}/logs/lonnet.log";
1.73 ! albertel 448: &rotate_logfile($fname,$fh,'lonnet log');
1.1 albertel 449:
1.46 albertel 450: &log($fh,"</pre>");
1.43 albertel 451: &errout($fh);
1.46 albertel 452: }
453:
1.73 ! albertel 454: sub rotate_other_logs {
! 455: my ($fh) = @_;
! 456: my $fname="$perlvar{'lonDaemons'}/logs/autoenroll.log";
! 457: &rotate_logfile($fname,$fh,'Auto Enroll log');
! 458: $fname="$perlvar{'lonDaemons'}/logs/autocreate.log";
! 459: &rotate_logfile($fname,$fh,'Create Course log');
! 460: $fname="$perlvar{'lonDaemons'}/logs/searchcat.log";
! 461: &rotate_logfile($fname,$fh,'Search Cataloguing log');
! 462: }
! 463:
1.43 albertel 464: # ----------------------------------------------------------------- Connections
1.46 albertel 465: sub test_connections {
1.72 albertel 466: my ($fh)=@_;
1.48 albertel 467: &log($fh,'<hr /><a name="connections" /><h2>Connections</h2>');
1.43 albertel 468: print "testing connections\n";
1.48 albertel 469: &log($fh,"<table border='2'>");
1.49 albertel 470: my ($good,$bad)=(0,0);
1.72 albertel 471: my %hostname = &Apache::lonnet::all_hostnames();
472: foreach my $tryserver (sort(keys(%hostname))) {
1.43 albertel 473: print(".");
1.46 albertel 474: my $result;
1.72 albertel 475: my $answer=&Apache::lonnet::reply("ping",$tryserver);
1.43 albertel 476: if ($answer eq "$tryserver:$perlvar{'lonHostID'}") {
477: $result="<b>ok</b>";
1.49 albertel 478: $good++;
1.43 albertel 479: } else {
480: $result=$answer;
481: $warnings++;
1.49 albertel 482: if ($answer eq 'con_lost') {
483: $bad++;
484: $warnings++;
1.50 albertel 485: } else {
486: $good++; #self connection
1.49 albertel 487: }
1.43 albertel 488: }
489: if ($answer =~ /con_lost/) { print(" $tryserver down\n"); }
1.46 albertel 490: &log($fh,"<tr><td>$tryserver</td><td>$result</td></tr>\n");
1.1 albertel 491: }
1.46 albertel 492: &log($fh,"</table>");
1.49 albertel 493: print "\n$good good, $bad bad connections\n";
1.43 albertel 494: &errout($fh);
1.46 albertel 495: }
496:
497:
1.1 albertel 498: # ------------------------------------------------------------ Delayed messages
1.46 albertel 499: sub check_delayed_msg {
1.72 albertel 500: my ($fh)=@_;
1.48 albertel 501: &log($fh,'<hr /><a name="delayed" /><h2>Delayed Messages</h2>');
1.43 albertel 502: print "checking buffers\n";
1.46 albertel 503:
504: &log($fh,'<h3>Scanning Permanent Log</h3>');
1.1 albertel 505:
1.46 albertel 506: my $unsend=0;
1.1 albertel 507:
1.46 albertel 508: my $dfh=IO::File->new("$perlvar{'lonDaemons'}/logs/lonnet.perm.log");
509: while (my $line=<$dfh>) {
510: my ($time,$sdf,$dserv,$dcmd)=split(/:/,$line);
511: if ($sdf eq 'F') {
512: my $local=localtime($time);
513: &log($fh,"<b>Failed: $time, $dserv, $dcmd</b><br>");
514: $warnings++;
1.43 albertel 515: }
1.46 albertel 516: if ($sdf eq 'S') { $unsend--; }
517: if ($sdf eq 'D') { $unsend++; }
1.1 albertel 518: }
1.46 albertel 519:
1.48 albertel 520: &log($fh,"<p>Total unsend messages: <b>$unsend</b></p>\n");
1.43 albertel 521: $warnings=$warnings+5*$unsend;
1.1 albertel 522:
1.43 albertel 523: if ($unsend) { $simplestatus{'unsend'}=$unsend; }
1.48 albertel 524: &log($fh,"<h3>Outgoing Buffer</h3>\n<pre>");
1.68 www 525: # list directory with delayed messages and remember offline servers
526: my %servers=();
1.43 albertel 527: open (DFH,"ls -lF $perlvar{'lonSockDir'}/delayed|");
1.68 www 528: while (my $line=<DFH>) {
529: my ($server)=($line=~/\.(\w+)$/);
530: if ($server) { $servers{$server}=1; }
1.48 albertel 531: &log($fh,&encode_entities($line,'<>&"'));
1.46 albertel 532: }
1.48 albertel 533: &log($fh,"</pre>\n");
1.43 albertel 534: close (DFH);
1.68 www 535: # pong to all servers that have delayed messages
536: # this will trigger a reverse connection, which should flush the buffers
537: foreach my $tryserver (keys %servers) {
1.72 albertel 538: my $answer=&Apache::lonnet::reply("pong",$tryserver);
1.69 www 539: &log($fh,"Pong to $tryserver: $answer<br />");
1.68 www 540: }
1.46 albertel 541: }
1.1 albertel 542:
1.46 albertel 543: sub finish_logging {
544: my ($fh)=@_;
1.48 albertel 545: &log($fh,"<a name='errcount' />\n");
1.43 albertel 546: $totalcount=$notices+4*$warnings+100*$errors;
547: &errout($fh);
1.46 albertel 548: &log($fh,"<h1>Total Error Count: $totalcount</h1>");
549: my $now=time;
550: my $date=localtime($now);
1.48 albertel 551: &log($fh,"<hr />$date ($now)</body></html>\n");
1.43 albertel 552: print "lon-status webpage updated\n";
553: $fh->close();
1.46 albertel 554:
555: if ($errors) { $simplestatus{'errors'}=$errors; }
556: if ($warnings) { $simplestatus{'warnings'}=$warnings; }
557: if ($notices) { $simplestatus{'notices'}=$notices; }
558: $simplestatus{'time'}=time;
1.1 albertel 559: }
560:
1.46 albertel 561: sub log_simplestatus {
1.73 ! albertel 562: rename("$statusdir/newstatus.html","$statusdir/index.html");
1.46 albertel 563:
1.43 albertel 564: my $sfh=IO::File->new(">$statusdir/loncron_simple.txt");
565: foreach (keys %simplestatus) {
566: print $sfh $_.'='.$simplestatus{$_}.'&';
567: }
568: print $sfh "\n";
569: $sfh->close();
1.41 www 570: }
1.46 albertel 571:
572: sub send_mail {
1.43 albertel 573: print "sending mail\n";
1.46 albertel 574: my $emailto="$perlvar{'lonAdmEMail'}";
1.54 www 575: if ($totalcount>2500) {
1.43 albertel 576: $emailto.=",$perlvar{'lonSysEMail'}";
577: }
1.46 albertel 578: my $subj="LON: $perlvar{'lonHostID'} E:$errors W:$warnings N:$notices";
1.52 albertel 579:
1.58 albertel 580: my $result=system("metasend -b -S 4000000 -t $emailto -s '$subj' -f $statusdir/index.html -m text/html >& /dev/null");
1.52 albertel 581: if ($result != 0) {
582: $result=system("mail -s '$subj' $emailto < $statusdir/index.html");
583: }
1.1 albertel 584: }
1.46 albertel 585:
1.49 albertel 586: sub usage {
587: print(<<USAGE);
588: loncron - housekeeping program that checks up on various parts of Lon-CAPA
589:
590: Options:
1.71 albertel 591: --help Display
1.49 albertel 592: --noemail Do not send the status email
593: --justcheckconnections Only check the current status of the lonc/d
594: connections, do not send emails do not
595: check if the daemons are running, do not
596: generate lon-status
597: --justcheckdaemons Only check that all of the Lon-CAPA daemons are
598: running, do not send emails do not
599: check the lonc/d connections, do not
600: generate lon-status
1.59 albertel 601: --justreload Only tell the daemons to reload the config files,
602: do not send emails do not
603: check if the daemons are running, do not
604: generate lon-status
1.49 albertel 605:
606: USAGE
607: }
608:
1.46 albertel 609: # ================================================================ Main Program
610: sub main () {
1.71 albertel 611: my ($help,$justcheckdaemons,$noemail,$justcheckconnections,
1.59 albertel 612: $justreload);
1.49 albertel 613: &GetOptions("help" => \$help,
614: "justcheckdaemons" => \$justcheckdaemons,
615: "noemail" => \$noemail,
1.59 albertel 616: "justcheckconnections" => \$justcheckconnections,
617: "justreload" => \$justreload
1.49 albertel 618: );
619: if ($help) { &usage(); return; }
1.46 albertel 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:
1.72 albertel 652: # -------------------------------------------- Force reload of host information
653: &Apache::lonnet::load_hosts_tab(1);
654: &Apache::lonnet::load_domain_tab(1);
655: &Apache::lonnet::get_iphost(1);
1.46 albertel 656:
657: # ---------------------------------------------------------------- Start report
658:
659: $errors=0;
660: $warnings=0;
661: $notices=0;
662:
663:
1.49 albertel 664: my $fh;
1.59 albertel 665: if (!$justcheckdaemons && !$justcheckconnections && !$justreload) {
1.72 albertel 666: $fh=&start_logging();
1.49 albertel 667:
668: &log_machine_info($fh);
669: &clean_tmp($fh);
670: &clean_lonIDs($fh);
671: &check_httpd_logs($fh);
672: &rotate_lonnet_logs($fh);
1.73 ! albertel 673: &rotate_other_logs($fh);
1.49 albertel 674: }
1.59 albertel 675: if (!$justcheckconnections && !$justreload) {
1.49 albertel 676: &checkon_daemon($fh,'lonsql',200000);
1.63 albertel 677: if ( &checkon_daemon($fh,'lond',40000,'USR1') eq 'running') {
678: &checkon_daemon($fh,'lond',40000,'USR2');
679: }
1.71 albertel 680: &checkon_daemon($fh,'lonc',40000,'USR1');
1.49 albertel 681: &checkon_daemon($fh,'lonhttpd',40000);
1.57 albertel 682: &checkon_daemon($fh,'lonmemcached',40000);
1.70 raeburn 683: &checkon_daemon($fh,'lonmaxima',40000);
1.49 albertel 684: }
1.59 albertel 685: if ($justreload) {
686: &checkon_daemon($fh,'lond',40000,'USR2');
1.71 albertel 687: &checkon_daemon($fh,'lonc',40000,'USR2');
1.59 albertel 688: }
1.63 albertel 689: if ($justcheckconnections) {
1.72 albertel 690: &test_connections($fh);
1.49 albertel 691: }
1.59 albertel 692: if (!$justcheckdaemons && !$justcheckconnections && !$justreload) {
1.72 albertel 693: &check_delayed_msg($fh);
1.49 albertel 694: &finish_logging($fh);
695: &log_simplestatus();
696:
697: if ($totalcount>200 && !$noemail) { &send_mail(); }
698: }
1.46 albertel 699: }
700:
701: &main();
1.1 albertel 702: 1;
703:
704:
705:
706:
707:
708:
709:
710:
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