Annotation of loncom/loncron, revision 1.74
1.1 albertel 1: #!/usr/bin/perl
2:
1.47 albertel 3: # Housekeeping program, started by cron, loncontrol and loncron.pl
4: #
1.74 ! albertel 5: # $Id: loncron,v 1.73 2007/04/13 18:26:22 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,$fh,'error logs');
1.74 ! albertel 84: if ($daemon eq 'lonc') {
! 85: &clean_sockets($fh);
! 86: }
1.51 albertel 87: system("$perlvar{'lonDaemons'}/$progname 2>$perlvar{'lonDaemons'}/logs/${daemon}_errors");
1.60 albertel 88: sleep 1;
1.42 albertel 89: if (-e $pidfile) {
1.48 albertel 90: &log($fh,"<p>Seems like it started ...</p>");
1.42 albertel 91: my $lfh=IO::File->new("$pidfile");
92: my $daemonpid=<$lfh>;
93: chomp($daemonpid);
1.62 albertel 94: if ($daemonpid =~ /^\d+$/ && kill 0 => $daemonpid) {
1.42 albertel 95: return 1;
96: } else {
97: return 0;
98: }
99: }
1.48 albertel 100: &log($fh,"<p>Seems like that did not work!</p>");
1.42 albertel 101: $errors++;
102: return 0;
103: }
104:
105: sub checkon_daemon {
1.59 albertel 106: my ($fh,$daemon,$maxsize,$send,$args)=@_;
1.42 albertel 107:
1.63 albertel 108: my $result;
1.48 albertel 109: &log($fh,'<hr /><a name="'.$daemon.'" /><h2>'.$daemon.'</h2><h3>Log</h3><p style="white-space: pre;"><tt>');
1.57 albertel 110: printf("%-15s ",$daemon);
1.42 albertel 111: if (-e "$perlvar{'lonDaemons'}/logs/$daemon.log"){
112: open (DFH,"tail -n25 $perlvar{'lonDaemons'}/logs/$daemon.log|");
1.46 albertel 113: while (my $line=<DFH>) {
114: &log($fh,"$line");
1.42 albertel 115: if ($line=~/INFO/) { $notices++; }
116: if ($line=~/WARNING/) { $notices++; }
117: if ($line=~/CRITICAL/) { $warnings++; }
118: };
119: close (DFH);
120: }
1.48 albertel 121: &log($fh,"</tt></p>");
1.42 albertel 122:
123: my $pidfile="$perlvar{'lonDaemons'}/logs/$daemon.pid";
124:
125: my $restartflag=1;
1.46 albertel 126: my $daemonpid;
1.42 albertel 127: if (-e $pidfile) {
128: my $lfh=IO::File->new("$pidfile");
1.46 albertel 129: $daemonpid=<$lfh>;
1.42 albertel 130: chomp($daemonpid);
1.62 albertel 131: if ($daemonpid =~ /^\d+$/ && kill 0 => $daemonpid) {
1.46 albertel 132: &log($fh,"<h3>$daemon at pid $daemonpid responding");
1.59 albertel 133: if ($send) { &log($fh,", sending $send"); }
1.46 albertel 134: &log($fh,"</h3>");
1.59 albertel 135: if ($send eq 'USR1') { kill USR1 => $daemonpid; }
136: if ($send eq 'USR2') { kill USR2 => $daemonpid; }
1.42 albertel 137: $restartflag=0;
1.59 albertel 138: if ($send eq 'USR2') {
1.63 albertel 139: $result = 'reloaded';
1.59 albertel 140: print "reloaded\n";
141: } else {
1.63 albertel 142: $result = 'running';
1.59 albertel 143: print "running\n";
144: }
1.42 albertel 145: } else {
146: $errors++;
1.46 albertel 147: &log($fh,"<h3>$daemon at pid $daemonpid not responding</h3>");
1.42 albertel 148: $restartflag=1;
1.46 albertel 149: &log($fh,"<h3>Decided to clean up stale .pid file and restart $daemon</h3>");
1.42 albertel 150: }
151: }
152: if ($restartflag==1) {
153: $simplestatus{$daemon}='off';
154: $errors++;
1.57 albertel 155: my $kadaemon=$daemon;
156: if ($kadaemon eq 'lonmemcached') { $kadaemon='memcached'; }
1.46 albertel 157: &log($fh,'<br><font color="red">Killall '.$daemon.': '.
1.57 albertel 158: `killall $kadaemon 2>&1`.' - ');
1.60 albertel 159: sleep 1;
1.46 albertel 160: &log($fh,unlink($pidfile).' - '.
1.57 albertel 161: `killall -9 $kadaemon 2>&1`.
1.46 albertel 162: '</font><br>');
163: &log($fh,"<h3>$daemon not running, trying to start</h3>");
1.42 albertel 164:
1.50 albertel 165: if (&start_daemon($fh,$daemon,$pidfile,$args)) {
1.46 albertel 166: &log($fh,"<h3>$daemon at pid $daemonpid responding</h3>");
1.42 albertel 167: $simplestatus{$daemon}='restarted';
1.63 albertel 168: $result = 'started';
1.42 albertel 169: print "started\n";
170: } else {
171: $errors++;
1.46 albertel 172: &log($fh,"<h3>$daemon at pid $daemonpid not responding</h3>");
1.48 albertel 173: &log($fh,"<p>Give it one more try ...</p>");
1.42 albertel 174: print " ";
1.50 albertel 175: if (&start_daemon($fh,$daemon,$pidfile,$args)) {
1.46 albertel 176: &log($fh,"<h3>$daemon at pid $daemonpid responding</h3>");
1.42 albertel 177: $simplestatus{$daemon}='restarted';
1.63 albertel 178: $result = 'started';
1.42 albertel 179: print "started\n";
180: } else {
1.63 albertel 181: $result = 'failed';
1.42 albertel 182: print " failed\n";
183: $simplestatus{$daemon}='failed';
184: $errors++; $errors++;
1.46 albertel 185: &log($fh,"<h3>$daemon at pid $daemonpid not responding</h3>");
1.48 albertel 186: &log($fh,"<p>Unable to start $daemon</p>");
1.42 albertel 187: }
188: }
189:
190: if (-e "$perlvar{'lonDaemons'}/logs/$daemon.log"){
1.46 albertel 191: &log($fh,"<p><pre>");
1.42 albertel 192: open (DFH,"tail -n100 $perlvar{'lonDaemons'}/logs/$daemon.log|");
1.46 albertel 193: while (my $line=<DFH>) {
194: &log($fh,"$line");
1.42 albertel 195: if ($line=~/WARNING/) { $notices++; }
196: if ($line=~/CRITICAL/) { $notices++; }
197: };
198: close (DFH);
1.48 albertel 199: &log($fh,"</pre></p>");
1.42 albertel 200: }
201: }
202:
1.46 albertel 203: my $fname="$perlvar{'lonDaemons'}/logs/$daemon.log";
1.73 albertel 204: &rotate_logfile($fname,$fh,'logs');
1.42 albertel 205:
206: &errout($fh);
1.63 albertel 207: return $result;
1.42 albertel 208: }
1.1 albertel 209:
1.46 albertel 210: # --------------------------------------------------------------------- Machine
211: sub log_machine_info {
212: my ($fh)=@_;
1.48 albertel 213: &log($fh,'<hr /><a name="machine" /><h2>Machine Information</h2>');
1.46 albertel 214: &log($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: $notices++;
229: }
1.13 harris41 230:
1.46 albertel 231: &log($fh,"<h3>df</h3>");
232: &log($fh,"<pre>");
1.14 harris41 233:
1.46 albertel 234: open (DFH,"df|");
235: while (my $line=<DFH>) {
1.48 albertel 236: &log($fh,&encode_entities($line,'<>&"'));
1.46 albertel 237: @parts=split(/\s+/,$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: $notices++;
1.31 albertel 247: }
1.46 albertel 248: if ($usage>95) { $warnings++; $warnings++; $simplestatus{'diskfull'}++; }
1.1 albertel 249: }
1.46 albertel 250: close (DFH);
251: &log($fh,"</pre>");
1.1 albertel 252:
253:
1.46 albertel 254: &log($fh,"<h3>ps</h3>");
255: &log($fh,"<pre>");
256: my $psproc=0;
1.1 albertel 257:
1.53 albertel 258: open (PSH,"ps aux --cols 140 |");
1.46 albertel 259: while (my $line=<PSH>) {
1.48 albertel 260: &log($fh,&encode_entities($line,'<>&"'));
1.46 albertel 261: $psproc++;
262: }
263: close (PSH);
264: &log($fh,"</pre>");
1.1 albertel 265:
1.46 albertel 266: if ($psproc>200) { $notices++; }
267: if ($psproc>250) { $notices++; }
1.1 albertel 268:
1.61 albertel 269: &log($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:
1.46 albertel 279: &errout($fh);
280: }
1.1 albertel 281:
1.46 albertel 282: sub start_logging {
1.43 albertel 283: my $fh=IO::File->new(">$statusdir/newstatus.html");
284: my %simplestatus=();
1.46 albertel 285: my $now=time;
286: my $date=localtime($now);
1.43 albertel 287:
1.46 albertel 288:
289: &log($fh,(<<ENDHEADERS));
1.1 albertel 290: <html>
291: <head>
292: <title>LON Status Report $perlvar{'lonHostID'}</title>
293: </head>
1.3 www 294: <body bgcolor="#AAAAAA">
1.48 albertel 295: <a name="top" />
1.1 albertel 296: <h1>LON Status Report $perlvar{'lonHostID'}</h1>
297: <h2>$date ($now)</h2>
298: <ol>
1.48 albertel 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>
1.1 albertel 312: </ol>
1.48 albertel 313: <hr />
314: <a name="configuration" />
1.1 albertel 315: <h2>Configuration</h2>
316: <h3>PerlVars</h3>
1.48 albertel 317: <table border="2">
1.1 albertel 318: ENDHEADERS
319:
1.46 albertel 320: foreach my $varname (sort(keys(%perlvar))) {
1.48 albertel 321: &log($fh,"<tr><td>$varname</td><td>".
322: &encode_entities($perlvar{$varname},'<>&"')."</td></tr>\n");
1.43 albertel 323: }
1.48 albertel 324: &log($fh,"</table><h3>Hosts</h3><table border='2'>");
1.72 albertel 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');
1.46 albertel 329: &log($fh,
1.72 albertel 330: "<tr><td>$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($fh,"</ol>\n</li>\n");
1.43 albertel 341: }
1.72 albertel 342: &log($fh,"</ul>\n");
1.46 albertel 343: return $fh;
344: }
1.11 www 345:
346: # --------------------------------------------------------------- clean out tmp
1.46 albertel 347: sub clean_tmp {
348: my ($fh)=@_;
1.48 albertel 349: &log($fh,'<hr /><a name="tmp" /><h2>Temporary Files</h2>');
1.46 albertel 350: my $cleaned=0;
351: my $old=0;
352: while (my $fname=<$perlvar{'lonDaemons'}/tmp/*>) {
1.43 albertel 353: my ($dev,$ino,$mode,$nlink,
354: $uid,$gid,$rdev,$size,
355: $atime,$mtime,$ctime,
356: $blksize,$blocks)=stat($fname);
1.46 albertel 357: my $now=time;
358: my $since=$now-$mtime;
1.43 albertel 359: if ($since>$perlvar{'lonExpire'}) {
1.46 albertel 360: my $line='';
1.43 albertel 361: if (open(PROBE,$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 { $old++; }
373: }
374: }
375: }
1.46 albertel 376: &log($fh,"Cleaned up ".$cleaned." files (".$old." old checkout tokens).");
377: }
1.11 www 378:
379: # ------------------------------------------------------------ clean out lonIDs
1.46 albertel 380: sub clean_lonIDs {
381: my ($fh)=@_;
1.48 albertel 382: &log($fh,'<hr /><a name="tokens" /><h2>Session Tokens</h2>');
1.46 albertel 383: my $cleaned=0;
384: my $active=0;
385: while (my $fname=<$perlvar{'lonIDsDir'}/*>) {
1.43 albertel 386: my ($dev,$ino,$mode,$nlink,
387: $uid,$gid,$rdev,$size,
388: $atime,$mtime,$ctime,
389: $blksize,$blocks)=stat($fname);
1.46 albertel 390: my $now=time;
391: my $since=$now-$mtime;
1.43 albertel 392: if ($since>$perlvar{'lonExpire'}) {
393: $cleaned++;
1.46 albertel 394: &log($fh,"Unlinking $fname<br>");
1.43 albertel 395: unlink("$fname");
396: } else {
397: $active++;
398: }
1.46 albertel 399: }
1.48 albertel 400: &log($fh,"<p>Cleaned up ".$cleaned." stale session token(s).</p>");
1.46 albertel 401: &log($fh,"<h3>$active open session(s)</h3>");
402: }
1.43 albertel 403:
1.74 ! albertel 404: # ----------------------------------------------------------- clean out sockets
! 405: sub clean_sockets {
! 406: my ($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:
1.11 www 419:
1.1 albertel 420: # ----------------------------------------------------------------------- httpd
1.46 albertel 421: sub check_httpd_logs {
422: my ($fh)=@_;
1.48 albertel 423: &log($fh,'<hr /><a name="httpd" /><h2>httpd</h2><h3>Access Log</h3><pre>');
1.43 albertel 424:
425: open (DFH,"tail -n25 /etc/httpd/logs/access_log|");
1.48 albertel 426: while (my $line=<DFH>) { &log($fh,&encode_entities($line,'<>&"')) };
1.43 albertel 427: close (DFH);
1.46 albertel 428:
429: &log($fh,"</pre><h3>Error Log</h3><pre>");
430:
1.43 albertel 431: open (DFH,"tail -n25 /etc/httpd/logs/error_log|");
1.46 albertel 432: while (my $line=<DFH>) {
433: &log($fh,"$line");
1.43 albertel 434: if ($line=~/\[error\]/) { $notices++; }
1.46 albertel 435: }
1.43 albertel 436: close (DFH);
1.46 albertel 437: &log($fh,"</pre>");
1.43 albertel 438: &errout($fh);
1.46 albertel 439: }
1.1 albertel 440:
441: # ---------------------------------------------------------------------- lonnet
442:
1.48 albertel 443: sub rotate_lonnet_logs {
1.46 albertel 444: my ($fh)=@_;
1.48 albertel 445: &log($fh,'<hr /><a name="lonnet" /><h2>lonnet</h2><h3>Temp Log</h3><pre>');
1.43 albertel 446: print "checking logs\n";
447: if (-e "$perlvar{'lonDaemons'}/logs/lonnet.log"){
448: open (DFH,"tail -n50 $perlvar{'lonDaemons'}/logs/lonnet.log|");
1.46 albertel 449: while (my $line=<DFH>) {
1.48 albertel 450: &log($fh,&encode_entities($line,'<>&"'));
1.46 albertel 451: }
1.43 albertel 452: close (DFH);
453: }
1.46 albertel 454: &log($fh,"</pre><h3>Perm Log</h3><pre>");
1.43 albertel 455:
456: if (-e "$perlvar{'lonDaemons'}/logs/lonnet.perm.log") {
457: open(DFH,"tail -n10 $perlvar{'lonDaemons'}/logs/lonnet.perm.log|");
1.46 albertel 458: while (my $line=<DFH>) {
1.48 albertel 459: &log($fh,&encode_entities($line,'<>&"'));
1.46 albertel 460: }
1.43 albertel 461: close (DFH);
1.46 albertel 462: } else { &log($fh,"No perm log\n") }
1.43 albertel 463:
1.46 albertel 464: my $fname="$perlvar{'lonDaemons'}/logs/lonnet.log";
1.73 albertel 465: &rotate_logfile($fname,$fh,'lonnet log');
1.1 albertel 466:
1.46 albertel 467: &log($fh,"</pre>");
1.43 albertel 468: &errout($fh);
1.46 albertel 469: }
470:
1.73 albertel 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:
1.43 albertel 481: # ----------------------------------------------------------------- Connections
1.46 albertel 482: sub test_connections {
1.72 albertel 483: my ($fh)=@_;
1.48 albertel 484: &log($fh,'<hr /><a name="connections" /><h2>Connections</h2>');
1.43 albertel 485: print "testing connections\n";
1.48 albertel 486: &log($fh,"<table border='2'>");
1.49 albertel 487: my ($good,$bad)=(0,0);
1.72 albertel 488: my %hostname = &Apache::lonnet::all_hostnames();
489: foreach my $tryserver (sort(keys(%hostname))) {
1.43 albertel 490: print(".");
1.46 albertel 491: my $result;
1.72 albertel 492: my $answer=&Apache::lonnet::reply("ping",$tryserver);
1.43 albertel 493: if ($answer eq "$tryserver:$perlvar{'lonHostID'}") {
494: $result="<b>ok</b>";
1.49 albertel 495: $good++;
1.43 albertel 496: } else {
497: $result=$answer;
498: $warnings++;
1.49 albertel 499: if ($answer eq 'con_lost') {
500: $bad++;
501: $warnings++;
1.50 albertel 502: } else {
503: $good++; #self connection
1.49 albertel 504: }
1.43 albertel 505: }
506: if ($answer =~ /con_lost/) { print(" $tryserver down\n"); }
1.46 albertel 507: &log($fh,"<tr><td>$tryserver</td><td>$result</td></tr>\n");
1.1 albertel 508: }
1.46 albertel 509: &log($fh,"</table>");
1.49 albertel 510: print "\n$good good, $bad bad connections\n";
1.43 albertel 511: &errout($fh);
1.46 albertel 512: }
513:
514:
1.1 albertel 515: # ------------------------------------------------------------ Delayed messages
1.46 albertel 516: sub check_delayed_msg {
1.72 albertel 517: my ($fh)=@_;
1.48 albertel 518: &log($fh,'<hr /><a name="delayed" /><h2>Delayed Messages</h2>');
1.43 albertel 519: print "checking buffers\n";
1.46 albertel 520:
521: &log($fh,'<h3>Scanning Permanent Log</h3>');
1.1 albertel 522:
1.46 albertel 523: my $unsend=0;
1.1 albertel 524:
1.46 albertel 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: $warnings++;
1.43 albertel 532: }
1.46 albertel 533: if ($sdf eq 'S') { $unsend--; }
534: if ($sdf eq 'D') { $unsend++; }
1.1 albertel 535: }
1.46 albertel 536:
1.48 albertel 537: &log($fh,"<p>Total unsend messages: <b>$unsend</b></p>\n");
1.43 albertel 538: $warnings=$warnings+5*$unsend;
1.1 albertel 539:
1.43 albertel 540: if ($unsend) { $simplestatus{'unsend'}=$unsend; }
1.48 albertel 541: &log($fh,"<h3>Outgoing Buffer</h3>\n<pre>");
1.68 www 542: # list directory with delayed messages and remember offline servers
543: my %servers=();
1.43 albertel 544: open (DFH,"ls -lF $perlvar{'lonSockDir'}/delayed|");
1.68 www 545: while (my $line=<DFH>) {
546: my ($server)=($line=~/\.(\w+)$/);
547: if ($server) { $servers{$server}=1; }
1.48 albertel 548: &log($fh,&encode_entities($line,'<>&"'));
1.46 albertel 549: }
1.48 albertel 550: &log($fh,"</pre>\n");
1.43 albertel 551: close (DFH);
1.68 www 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) {
1.72 albertel 555: my $answer=&Apache::lonnet::reply("pong",$tryserver);
1.69 www 556: &log($fh,"Pong to $tryserver: $answer<br />");
1.68 www 557: }
1.46 albertel 558: }
1.1 albertel 559:
1.46 albertel 560: sub finish_logging {
561: my ($fh)=@_;
1.48 albertel 562: &log($fh,"<a name='errcount' />\n");
1.43 albertel 563: $totalcount=$notices+4*$warnings+100*$errors;
564: &errout($fh);
1.46 albertel 565: &log($fh,"<h1>Total Error Count: $totalcount</h1>");
566: my $now=time;
567: my $date=localtime($now);
1.48 albertel 568: &log($fh,"<hr />$date ($now)</body></html>\n");
1.43 albertel 569: print "lon-status webpage updated\n";
570: $fh->close();
1.46 albertel 571:
572: if ($errors) { $simplestatus{'errors'}=$errors; }
573: if ($warnings) { $simplestatus{'warnings'}=$warnings; }
574: if ($notices) { $simplestatus{'notices'}=$notices; }
575: $simplestatus{'time'}=time;
1.1 albertel 576: }
577:
1.46 albertel 578: sub log_simplestatus {
1.73 albertel 579: rename("$statusdir/newstatus.html","$statusdir/index.html");
1.46 albertel 580:
1.43 albertel 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();
1.41 www 587: }
1.46 albertel 588:
589: sub send_mail {
1.43 albertel 590: print "sending mail\n";
1.46 albertel 591: my $emailto="$perlvar{'lonAdmEMail'}";
1.54 www 592: if ($totalcount>2500) {
1.43 albertel 593: $emailto.=",$perlvar{'lonSysEMail'}";
594: }
1.46 albertel 595: my $subj="LON: $perlvar{'lonHostID'} E:$errors W:$warnings N:$notices";
1.52 albertel 596:
1.58 albertel 597: my $result=system("metasend -b -S 4000000 -t $emailto -s '$subj' -f $statusdir/index.html -m text/html >& /dev/null");
1.52 albertel 598: if ($result != 0) {
599: $result=system("mail -s '$subj' $emailto < $statusdir/index.html");
600: }
1.1 albertel 601: }
1.46 albertel 602:
1.49 albertel 603: sub usage {
604: print(<<USAGE);
605: loncron - housekeeping program that checks up on various parts of Lon-CAPA
606:
607: Options:
1.71 albertel 608: --help Display
1.49 albertel 609: --noemail Do not send the status email
610: --justcheckconnections Only check the current status of the lonc/d
611: connections, do not send emails do not
612: check if the daemons are running, do not
613: generate lon-status
614: --justcheckdaemons Only check that all of the Lon-CAPA daemons are
615: running, do not send emails do not
616: check the lonc/d connections, do not
617: generate lon-status
1.59 albertel 618: --justreload Only tell the daemons to reload the config files,
619: do not send emails do not
620: check if the daemons are running, do not
621: generate lon-status
1.49 albertel 622:
623: USAGE
624: }
625:
1.46 albertel 626: # ================================================================ Main Program
627: sub main () {
1.71 albertel 628: my ($help,$justcheckdaemons,$noemail,$justcheckconnections,
1.59 albertel 629: $justreload);
1.49 albertel 630: &GetOptions("help" => \$help,
631: "justcheckdaemons" => \$justcheckdaemons,
632: "noemail" => \$noemail,
1.59 albertel 633: "justcheckconnections" => \$justcheckconnections,
634: "justreload" => \$justreload
1.49 albertel 635: );
636: if ($help) { &usage(); return; }
1.46 albertel 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:
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:
1.72 albertel 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);
1.46 albertel 673:
674: # ---------------------------------------------------------------- Start report
675:
676: $errors=0;
677: $warnings=0;
678: $notices=0;
679:
680:
1.49 albertel 681: my $fh;
1.59 albertel 682: if (!$justcheckdaemons && !$justcheckconnections && !$justreload) {
1.72 albertel 683: $fh=&start_logging();
1.49 albertel 684:
685: &log_machine_info($fh);
686: &clean_tmp($fh);
687: &clean_lonIDs($fh);
688: &check_httpd_logs($fh);
689: &rotate_lonnet_logs($fh);
1.73 albertel 690: &rotate_other_logs($fh);
1.49 albertel 691: }
1.59 albertel 692: if (!$justcheckconnections && !$justreload) {
1.49 albertel 693: &checkon_daemon($fh,'lonsql',200000);
1.63 albertel 694: if ( &checkon_daemon($fh,'lond',40000,'USR1') eq 'running') {
695: &checkon_daemon($fh,'lond',40000,'USR2');
696: }
1.71 albertel 697: &checkon_daemon($fh,'lonc',40000,'USR1');
1.49 albertel 698: &checkon_daemon($fh,'lonhttpd',40000);
1.57 albertel 699: &checkon_daemon($fh,'lonmemcached',40000);
1.70 raeburn 700: &checkon_daemon($fh,'lonmaxima',40000);
1.49 albertel 701: }
1.59 albertel 702: if ($justreload) {
703: &checkon_daemon($fh,'lond',40000,'USR2');
1.71 albertel 704: &checkon_daemon($fh,'lonc',40000,'USR2');
1.59 albertel 705: }
1.63 albertel 706: if ($justcheckconnections) {
1.72 albertel 707: &test_connections($fh);
1.49 albertel 708: }
1.59 albertel 709: if (!$justcheckdaemons && !$justcheckconnections && !$justreload) {
1.72 albertel 710: &check_delayed_msg($fh);
1.49 albertel 711: &finish_logging($fh);
712: &log_simplestatus();
713:
714: if ($totalcount>200 && !$noemail) { &send_mail(); }
715: }
1.46 albertel 716: }
717:
718: &main();
1.1 albertel 719: 1;
720:
721:
722:
723:
724:
725:
726:
727:
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