Annotation of loncom/loncron, revision 1.82
1.1 albertel 1: #!/usr/bin/perl
2:
1.47 albertel 3: # Housekeeping program, started by cron, loncontrol and loncron.pl
4: #
1.82 ! raeburn 5: # $Id: loncron,v 1.81 2009/06/11 00:15:27 raeburn 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;
1.79 raeburn 36: use Apache::loncommon;
1.26 harris41 37:
1.1 albertel 38: use IO::File;
39: use IO::Socket;
1.48 albertel 40: use HTML::Entities;
1.49 albertel 41: use Getopt::Long;
1.46 albertel 42: #globals
43: use vars qw (%perlvar %simplestatus $errors $warnings $notices $totalcount);
44:
45: my $statusdir="/home/httpd/html/lon-status";
46:
1.1 albertel 47:
48: # --------------------------------------------------------- Output error status
49:
1.46 albertel 50: sub log {
51: my $fh=shift;
52: if ($fh) { print $fh @_ }
53: }
54:
1.1 albertel 55: sub errout {
56: my $fh=shift;
1.46 albertel 57: &log($fh,(<<ENDERROUT));
1.48 albertel 58: <table border="2" bgcolor="#CCCCCC">
1.1 albertel 59: <tr><td>Notices</td><td>$notices</td></tr>
60: <tr><td>Warnings</td><td>$warnings</td></tr>
61: <tr><td>Errors</td><td>$errors</td></tr>
1.48 albertel 62: </table><p><a href="#top">Top</a></p>
1.1 albertel 63: ENDERROUT
64: }
65:
1.73 albertel 66: sub rotate_logfile {
67: my ($file,$fh,$description) = @_;
68: my $size=(stat($file))[7];
69: if ($size>40000) {
70: &log($fh,"<p>Rotating $description ...</p>");
71: rename("$file.2","$file.3");
72: rename("$file.1","$file.2");
73: rename("$file","$file.1");
74: }
75: }
76:
1.42 albertel 77: sub start_daemon {
1.50 albertel 78: my ($fh,$daemon,$pidfile,$args) = @_;
1.44 albertel 79: my $progname=$daemon;
1.71 albertel 80: if ($daemon eq 'lonc') {
1.44 albertel 81: $progname='loncnew';
82: }
1.51 albertel 83: my $error_fname="$perlvar{'lonDaemons'}/logs/${daemon}_errors";
1.73 albertel 84: &rotate_logfile($error_fname,$fh,'error logs');
1.74 albertel 85: if ($daemon eq 'lonc') {
86: &clean_sockets($fh);
87: }
1.51 albertel 88: system("$perlvar{'lonDaemons'}/$progname 2>$perlvar{'lonDaemons'}/logs/${daemon}_errors");
1.60 albertel 89: sleep 1;
1.42 albertel 90: if (-e $pidfile) {
1.48 albertel 91: &log($fh,"<p>Seems like it started ...</p>");
1.42 albertel 92: my $lfh=IO::File->new("$pidfile");
93: my $daemonpid=<$lfh>;
94: chomp($daemonpid);
1.62 albertel 95: if ($daemonpid =~ /^\d+$/ && kill 0 => $daemonpid) {
1.42 albertel 96: return 1;
97: } else {
98: return 0;
99: }
100: }
1.48 albertel 101: &log($fh,"<p>Seems like that did not work!</p>");
1.42 albertel 102: $errors++;
103: return 0;
104: }
105:
106: sub checkon_daemon {
1.59 albertel 107: my ($fh,$daemon,$maxsize,$send,$args)=@_;
1.42 albertel 108:
1.63 albertel 109: my $result;
1.48 albertel 110: &log($fh,'<hr /><a name="'.$daemon.'" /><h2>'.$daemon.'</h2><h3>Log</h3><p style="white-space: pre;"><tt>');
1.57 albertel 111: printf("%-15s ",$daemon);
1.42 albertel 112: if (-e "$perlvar{'lonDaemons'}/logs/$daemon.log"){
113: open (DFH,"tail -n25 $perlvar{'lonDaemons'}/logs/$daemon.log|");
1.46 albertel 114: while (my $line=<DFH>) {
115: &log($fh,"$line");
1.42 albertel 116: if ($line=~/INFO/) { $notices++; }
117: if ($line=~/WARNING/) { $notices++; }
118: if ($line=~/CRITICAL/) { $warnings++; }
119: };
120: close (DFH);
121: }
1.48 albertel 122: &log($fh,"</tt></p>");
1.42 albertel 123:
124: my $pidfile="$perlvar{'lonDaemons'}/logs/$daemon.pid";
125:
126: my $restartflag=1;
1.46 albertel 127: my $daemonpid;
1.42 albertel 128: if (-e $pidfile) {
129: my $lfh=IO::File->new("$pidfile");
1.46 albertel 130: $daemonpid=<$lfh>;
1.42 albertel 131: chomp($daemonpid);
1.62 albertel 132: if ($daemonpid =~ /^\d+$/ && kill 0 => $daemonpid) {
1.46 albertel 133: &log($fh,"<h3>$daemon at pid $daemonpid responding");
1.59 albertel 134: if ($send) { &log($fh,", sending $send"); }
1.46 albertel 135: &log($fh,"</h3>");
1.59 albertel 136: if ($send eq 'USR1') { kill USR1 => $daemonpid; }
137: if ($send eq 'USR2') { kill USR2 => $daemonpid; }
1.42 albertel 138: $restartflag=0;
1.59 albertel 139: if ($send eq 'USR2') {
1.63 albertel 140: $result = 'reloaded';
1.59 albertel 141: print "reloaded\n";
142: } else {
1.63 albertel 143: $result = 'running';
1.59 albertel 144: print "running\n";
145: }
1.42 albertel 146: } else {
147: $errors++;
1.46 albertel 148: &log($fh,"<h3>$daemon at pid $daemonpid not responding</h3>");
1.42 albertel 149: $restartflag=1;
1.46 albertel 150: &log($fh,"<h3>Decided to clean up stale .pid file and restart $daemon</h3>");
1.42 albertel 151: }
152: }
153: if ($restartflag==1) {
154: $simplestatus{$daemon}='off';
155: $errors++;
1.57 albertel 156: my $kadaemon=$daemon;
157: if ($kadaemon eq 'lonmemcached') { $kadaemon='memcached'; }
1.46 albertel 158: &log($fh,'<br><font color="red">Killall '.$daemon.': '.
1.57 albertel 159: `killall $kadaemon 2>&1`.' - ');
1.60 albertel 160: sleep 1;
1.46 albertel 161: &log($fh,unlink($pidfile).' - '.
1.57 albertel 162: `killall -9 $kadaemon 2>&1`.
1.46 albertel 163: '</font><br>');
164: &log($fh,"<h3>$daemon not running, trying to start</h3>");
1.42 albertel 165:
1.50 albertel 166: if (&start_daemon($fh,$daemon,$pidfile,$args)) {
1.46 albertel 167: &log($fh,"<h3>$daemon at pid $daemonpid responding</h3>");
1.42 albertel 168: $simplestatus{$daemon}='restarted';
1.63 albertel 169: $result = 'started';
1.42 albertel 170: print "started\n";
171: } else {
172: $errors++;
1.46 albertel 173: &log($fh,"<h3>$daemon at pid $daemonpid not responding</h3>");
1.48 albertel 174: &log($fh,"<p>Give it one more try ...</p>");
1.42 albertel 175: print " ";
1.50 albertel 176: if (&start_daemon($fh,$daemon,$pidfile,$args)) {
1.46 albertel 177: &log($fh,"<h3>$daemon at pid $daemonpid responding</h3>");
1.42 albertel 178: $simplestatus{$daemon}='restarted';
1.63 albertel 179: $result = 'started';
1.42 albertel 180: print "started\n";
181: } else {
1.63 albertel 182: $result = 'failed';
1.42 albertel 183: print " failed\n";
184: $simplestatus{$daemon}='failed';
185: $errors++; $errors++;
1.46 albertel 186: &log($fh,"<h3>$daemon at pid $daemonpid not responding</h3>");
1.48 albertel 187: &log($fh,"<p>Unable to start $daemon</p>");
1.42 albertel 188: }
189: }
190:
191: if (-e "$perlvar{'lonDaemons'}/logs/$daemon.log"){
1.46 albertel 192: &log($fh,"<p><pre>");
1.42 albertel 193: open (DFH,"tail -n100 $perlvar{'lonDaemons'}/logs/$daemon.log|");
1.46 albertel 194: while (my $line=<DFH>) {
195: &log($fh,"$line");
1.42 albertel 196: if ($line=~/WARNING/) { $notices++; }
197: if ($line=~/CRITICAL/) { $notices++; }
198: };
199: close (DFH);
1.48 albertel 200: &log($fh,"</pre></p>");
1.42 albertel 201: }
202: }
203:
1.46 albertel 204: my $fname="$perlvar{'lonDaemons'}/logs/$daemon.log";
1.73 albertel 205: &rotate_logfile($fname,$fh,'logs');
1.42 albertel 206:
207: &errout($fh);
1.63 albertel 208: return $result;
1.42 albertel 209: }
1.1 albertel 210:
1.46 albertel 211: # --------------------------------------------------------------------- Machine
212: sub log_machine_info {
213: my ($fh)=@_;
1.48 albertel 214: &log($fh,'<hr /><a name="machine" /><h2>Machine Information</h2>');
1.46 albertel 215: &log($fh,"<h3>loadavg</h3>");
216:
217: open (LOADAVGH,"/proc/loadavg");
218: my $loadavg=<LOADAVGH>;
219: close (LOADAVGH);
220:
221: &log($fh,"<tt>$loadavg</tt>");
222:
223: my @parts=split(/\s+/,$loadavg);
224: if ($parts[1]>4.0) {
225: $errors++;
226: } elsif ($parts[1]>2.0) {
227: $warnings++;
228: } elsif ($parts[1]>1.0) {
229: $notices++;
230: }
1.13 harris41 231:
1.46 albertel 232: &log($fh,"<h3>df</h3>");
233: &log($fh,"<pre>");
1.14 harris41 234:
1.46 albertel 235: open (DFH,"df|");
236: while (my $line=<DFH>) {
1.48 albertel 237: &log($fh,&encode_entities($line,'<>&"'));
1.46 albertel 238: @parts=split(/\s+/,$line);
239: my $usage=$parts[4];
240: $usage=~s/\W//g;
241: if ($usage>90) {
242: $warnings++;
243: $notices++;
244: } elsif ($usage>80) {
245: $warnings++;
246: } elsif ($usage>60) {
247: $notices++;
1.31 albertel 248: }
1.46 albertel 249: if ($usage>95) { $warnings++; $warnings++; $simplestatus{'diskfull'}++; }
1.1 albertel 250: }
1.46 albertel 251: close (DFH);
252: &log($fh,"</pre>");
1.1 albertel 253:
254:
1.46 albertel 255: &log($fh,"<h3>ps</h3>");
256: &log($fh,"<pre>");
257: my $psproc=0;
1.1 albertel 258:
1.53 albertel 259: open (PSH,"ps aux --cols 140 |");
1.46 albertel 260: while (my $line=<PSH>) {
1.48 albertel 261: &log($fh,&encode_entities($line,'<>&"'));
1.46 albertel 262: $psproc++;
263: }
264: close (PSH);
265: &log($fh,"</pre>");
1.1 albertel 266:
1.46 albertel 267: if ($psproc>200) { $notices++; }
268: if ($psproc>250) { $notices++; }
1.1 albertel 269:
1.61 albertel 270: &log($fh,"<h3>distprobe</h3>");
271: &log($fh,"<pre>");
272: open(DSH,"$perlvar{'lonDaemons'}/distprobe |");
273: while (my $line=<DSH>) {
274: &log($fh,&encode_entities($line,'<>&"'));
275: $psproc++;
276: }
277: close(DSH);
278: &log($fh,"</pre>");
279:
1.46 albertel 280: &errout($fh);
281: }
1.1 albertel 282:
1.46 albertel 283: sub start_logging {
1.43 albertel 284: my $fh=IO::File->new(">$statusdir/newstatus.html");
285: my %simplestatus=();
1.46 albertel 286: my $now=time;
287: my $date=localtime($now);
1.43 albertel 288:
1.46 albertel 289:
290: &log($fh,(<<ENDHEADERS));
1.1 albertel 291: <html>
292: <head>
293: <title>LON Status Report $perlvar{'lonHostID'}</title>
294: </head>
1.3 www 295: <body bgcolor="#AAAAAA">
1.48 albertel 296: <a name="top" />
1.1 albertel 297: <h1>LON Status Report $perlvar{'lonHostID'}</h1>
298: <h2>$date ($now)</h2>
299: <ol>
1.48 albertel 300: <li><a href="#configuration">Configuration</a></li>
301: <li><a href="#machine">Machine Information</a></li>
302: <li><a href="#tmp">Temporary Files</a></li>
303: <li><a href="#tokens">Session Tokens</a></li>
304: <li><a href="#httpd">httpd</a></li>
305: <li><a href="#lonsql">lonsql</a></li>
306: <li><a href="#lond">lond</a></li>
307: <li><a href="#lonc">lonc</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($fh,'<hr /><a name="tmp" /><h2>Temporary Files</h2>');
1.82 ! raeburn 350: my ($cleaned,$old,$removed) = (0,0,0);
! 351: my %errors = (
! 352: dir => [],
! 353: file => [],
! 354: failopen => [],
! 355: );
! 356: my %error_titles = (
! 357: dir => 'failed to remove empty directory:',
! 358: file => 'failed to unlike stale file',
! 359: failopen => 'failed to open file or directory'
! 360: );
! 361: ($cleaned,$old,$removed) = &recursive_clean_tmp('',$cleaned,$old,$removed,\%errors);
! 362: &log($fh,"Cleaned up: ".$cleaned." files; removed: $removed empty directories; (found: $old old checkout tokens)");
! 363: foreach my $key (sort(keys(%errors))) {
! 364: if (ref($errors{$key}) eq 'ARRAY') {
! 365: if (@{$errors{$key}} > 0) {
! 366: &log($fh,"Error during cleanup ($error_titles{$key}):<ul><li>".
! 367: join('</li><li><tt>',@{$errors{$key}}).'</tt></li></ul><br />');
! 368: }
! 369: }
! 370: }
! 371: }
! 372:
! 373: sub recursive_clean_tmp {
! 374: my ($subdir,$cleaned,$old,$removed,$errors) = @_;
! 375: my $base = "$perlvar{'lonDaemons'}/tmp";
! 376: my $path = $base;
! 377: next if ($subdir =~ m{\.\./});
! 378: next unless (ref($errors) eq 'HASH');
! 379: unless ($subdir eq '') {
! 380: $path .= '/'.$subdir;
! 381: }
! 382: if (opendir(my $dh,"$path")) {
! 383: while (my $file = readdir($dh)) {
! 384: next if ($file =~ /^\.\.?$/);
! 385: my $fname = "$path/$file";
! 386: if (-d $fname) {
! 387: my $innerdir;
! 388: if ($subdir eq '') {
! 389: $innerdir = $file;
! 390: } else {
! 391: $innerdir = $subdir.'/'.$file;
! 392: }
! 393: ($cleaned,$old,$removed) =
! 394: &recursive_clean_tmp($innerdir,$cleaned,$old,$removed,$errors);
! 395: my @doms = &Apache::lonnet::current_machine_domains();
! 396:
! 397: if (open(my $dirhandle,$fname)) {
! 398: unless (($innerdir eq 'helprequests') ||
! 399: (($innerdir =~ /^addcourse/) && ($innerdir !~ m{/\d+$}))) {
! 400: my @contents = grep {!/^\.\.?$/} readdir($dirhandle);
! 401: join('&&',@contents)."\n";
! 402: if (scalar(grep {!/^\.\.?$/} readdir($dirhandle)) == 0) {
! 403: closedir($dirhandle);
! 404: if ($fname =~ m{^\Q$perlvar{'lonDaemons'}\E/tmp/}) {
! 405: if (rmdir($fname)) {
! 406: $removed ++;
! 407: } elsif (ref($errors->{dir}) eq 'ARRAY') {
! 408: push(@{$errors->{dir}},$fname);
! 409: }
! 410: }
! 411: }
! 412: } else {
! 413: closedir($dirhandle);
! 414: }
! 415: }
! 416: } else {
! 417: my ($dev,$ino,$mode,$nlink,
! 418: $uid,$gid,$rdev,$size,
! 419: $atime,$mtime,$ctime,
! 420: $blksize,$blocks)=stat($fname);
! 421: my $now=time;
! 422: my $since=$now-$mtime;
! 423: if ($since>$perlvar{'lonExpire'}) {
! 424: if ($subdir eq '') {
! 425: my $line='';
! 426: if ($fname =~ /\.db$/) {
! 427: if (unlink($fname)) {
! 428: $cleaned++;
! 429: } elsif (ref($errors->{file}) eq 'ARRAY') {
! 430: push(@{$errors->{file}},$fname);
! 431: }
! 432: } elsif (open(PROBE,$fname)) {
! 433: my $line='';
! 434: $line=<PROBE>;
! 435: close(PROBE);
! 436: if ($line=~/^CHECKOUTTOKEN\&/) {
! 437: if ($since>365*$perlvar{'lonExpire'}) {
! 438: if (unlink($fname)) {
! 439: $cleaned++;
! 440: } elsif (ref($errors->{file}) eq 'ARRAY') {
! 441: push(@{$errors->{file}},$fname);
! 442: }
! 443: } else {
! 444: $old++;
! 445: }
! 446: } else {
! 447: if (unlink($fname)) {
! 448: $cleaned++;
! 449: } elsif (ref($errors->{file}) eq 'ARRAY') {
! 450: push(@{$errors->{file}},$fname);
! 451: }
! 452: }
! 453: } elsif (ref($errors->{failopen}) eq 'ARRAY') {
! 454: push(@{$errors->{failopen}},$fname);
! 455: }
! 456: } else {
! 457: if (unlink($fname)) {
! 458: $cleaned++;
! 459: } elsif (ref($errors->{file}) eq 'ARRAY') {
! 460: push(@{$errors->{file}},$fname);
! 461: }
! 462: }
! 463: }
! 464: }
! 465: }
! 466: closedir($dh);
! 467: } elsif (ref($errors->{failopen}) eq 'ARRAY') {
! 468: push(@{$errors->{failopen}},$path);
1.43 albertel 469: }
1.82 ! raeburn 470: return ($cleaned,$old,$removed);
1.46 albertel 471: }
1.11 www 472:
473: # ------------------------------------------------------------ clean out lonIDs
1.46 albertel 474: sub clean_lonIDs {
475: my ($fh)=@_;
1.48 albertel 476: &log($fh,'<hr /><a name="tokens" /><h2>Session Tokens</h2>');
1.46 albertel 477: my $cleaned=0;
478: my $active=0;
479: while (my $fname=<$perlvar{'lonIDsDir'}/*>) {
1.43 albertel 480: my ($dev,$ino,$mode,$nlink,
481: $uid,$gid,$rdev,$size,
482: $atime,$mtime,$ctime,
483: $blksize,$blocks)=stat($fname);
1.46 albertel 484: my $now=time;
485: my $since=$now-$mtime;
1.43 albertel 486: if ($since>$perlvar{'lonExpire'}) {
487: $cleaned++;
1.46 albertel 488: &log($fh,"Unlinking $fname<br>");
1.43 albertel 489: unlink("$fname");
490: } else {
491: $active++;
492: }
1.46 albertel 493: }
1.48 albertel 494: &log($fh,"<p>Cleaned up ".$cleaned." stale session token(s).</p>");
1.46 albertel 495: &log($fh,"<h3>$active open session(s)</h3>");
496: }
1.43 albertel 497:
1.74 albertel 498: # ----------------------------------------------------------- clean out sockets
499: sub clean_sockets {
500: my ($fh)=@_;
501: my $cleaned=0;
502: opendir(SOCKETS,$perlvar{'lonSockDir'});
503: while (my $fname=readdir(SOCKETS)) {
504: next if (-d $fname
1.80 www 505: || $fname=~/(mysqlsock|maximasock|rsock|\Q$perlvar{'lonSockDir'}\E)/);
1.74 albertel 506: $cleaned++;
507: &log($fh,"Unlinking $fname<br />");
508: unlink("/home/httpd/sockets/$fname");
509: }
510: &log($fh,"<p>Cleaned up ".$cleaned." stale sockets.</p>");
511: }
512:
1.11 www 513:
1.1 albertel 514: # ----------------------------------------------------------------------- httpd
1.46 albertel 515: sub check_httpd_logs {
516: my ($fh)=@_;
1.48 albertel 517: &log($fh,'<hr /><a name="httpd" /><h2>httpd</h2><h3>Access Log</h3><pre>');
1.43 albertel 518:
519: open (DFH,"tail -n25 /etc/httpd/logs/access_log|");
1.48 albertel 520: while (my $line=<DFH>) { &log($fh,&encode_entities($line,'<>&"')) };
1.43 albertel 521: close (DFH);
1.46 albertel 522:
523: &log($fh,"</pre><h3>Error Log</h3><pre>");
524:
1.43 albertel 525: open (DFH,"tail -n25 /etc/httpd/logs/error_log|");
1.46 albertel 526: while (my $line=<DFH>) {
527: &log($fh,"$line");
1.43 albertel 528: if ($line=~/\[error\]/) { $notices++; }
1.46 albertel 529: }
1.43 albertel 530: close (DFH);
1.46 albertel 531: &log($fh,"</pre>");
1.43 albertel 532: &errout($fh);
1.46 albertel 533: }
1.1 albertel 534:
535: # ---------------------------------------------------------------------- lonnet
536:
1.48 albertel 537: sub rotate_lonnet_logs {
1.46 albertel 538: my ($fh)=@_;
1.48 albertel 539: &log($fh,'<hr /><a name="lonnet" /><h2>lonnet</h2><h3>Temp Log</h3><pre>');
1.43 albertel 540: print "checking logs\n";
541: if (-e "$perlvar{'lonDaemons'}/logs/lonnet.log"){
542: open (DFH,"tail -n50 $perlvar{'lonDaemons'}/logs/lonnet.log|");
1.46 albertel 543: while (my $line=<DFH>) {
1.48 albertel 544: &log($fh,&encode_entities($line,'<>&"'));
1.46 albertel 545: }
1.43 albertel 546: close (DFH);
547: }
1.46 albertel 548: &log($fh,"</pre><h3>Perm Log</h3><pre>");
1.43 albertel 549:
550: if (-e "$perlvar{'lonDaemons'}/logs/lonnet.perm.log") {
551: open(DFH,"tail -n10 $perlvar{'lonDaemons'}/logs/lonnet.perm.log|");
1.46 albertel 552: while (my $line=<DFH>) {
1.48 albertel 553: &log($fh,&encode_entities($line,'<>&"'));
1.46 albertel 554: }
1.43 albertel 555: close (DFH);
1.46 albertel 556: } else { &log($fh,"No perm log\n") }
1.43 albertel 557:
1.46 albertel 558: my $fname="$perlvar{'lonDaemons'}/logs/lonnet.log";
1.73 albertel 559: &rotate_logfile($fname,$fh,'lonnet log');
1.1 albertel 560:
1.46 albertel 561: &log($fh,"</pre>");
1.43 albertel 562: &errout($fh);
1.46 albertel 563: }
564:
1.73 albertel 565: sub rotate_other_logs {
566: my ($fh) = @_;
567: my $fname="$perlvar{'lonDaemons'}/logs/autoenroll.log";
568: &rotate_logfile($fname,$fh,'Auto Enroll log');
569: $fname="$perlvar{'lonDaemons'}/logs/autocreate.log";
570: &rotate_logfile($fname,$fh,'Create Course log');
571: $fname="$perlvar{'lonDaemons'}/logs/searchcat.log";
572: &rotate_logfile($fname,$fh,'Search Cataloguing log');
573: }
574:
1.43 albertel 575: # ----------------------------------------------------------------- Connections
1.46 albertel 576: sub test_connections {
1.72 albertel 577: my ($fh)=@_;
1.48 albertel 578: &log($fh,'<hr /><a name="connections" /><h2>Connections</h2>');
1.43 albertel 579: print "testing connections\n";
1.48 albertel 580: &log($fh,"<table border='2'>");
1.49 albertel 581: my ($good,$bad)=(0,0);
1.72 albertel 582: my %hostname = &Apache::lonnet::all_hostnames();
583: foreach my $tryserver (sort(keys(%hostname))) {
1.43 albertel 584: print(".");
1.46 albertel 585: my $result;
1.72 albertel 586: my $answer=&Apache::lonnet::reply("ping",$tryserver);
1.43 albertel 587: if ($answer eq "$tryserver:$perlvar{'lonHostID'}") {
588: $result="<b>ok</b>";
1.49 albertel 589: $good++;
1.43 albertel 590: } else {
591: $result=$answer;
592: $warnings++;
1.49 albertel 593: if ($answer eq 'con_lost') {
594: $bad++;
595: $warnings++;
1.50 albertel 596: } else {
597: $good++; #self connection
1.49 albertel 598: }
1.43 albertel 599: }
600: if ($answer =~ /con_lost/) { print(" $tryserver down\n"); }
1.46 albertel 601: &log($fh,"<tr><td>$tryserver</td><td>$result</td></tr>\n");
1.1 albertel 602: }
1.46 albertel 603: &log($fh,"</table>");
1.49 albertel 604: print "\n$good good, $bad bad connections\n";
1.43 albertel 605: &errout($fh);
1.46 albertel 606: }
607:
608:
1.1 albertel 609: # ------------------------------------------------------------ Delayed messages
1.46 albertel 610: sub check_delayed_msg {
1.72 albertel 611: my ($fh)=@_;
1.48 albertel 612: &log($fh,'<hr /><a name="delayed" /><h2>Delayed Messages</h2>');
1.43 albertel 613: print "checking buffers\n";
1.46 albertel 614:
615: &log($fh,'<h3>Scanning Permanent Log</h3>');
1.1 albertel 616:
1.46 albertel 617: my $unsend=0;
1.1 albertel 618:
1.46 albertel 619: my $dfh=IO::File->new("$perlvar{'lonDaemons'}/logs/lonnet.perm.log");
620: while (my $line=<$dfh>) {
621: my ($time,$sdf,$dserv,$dcmd)=split(/:/,$line);
622: if ($sdf eq 'F') {
623: my $local=localtime($time);
624: &log($fh,"<b>Failed: $time, $dserv, $dcmd</b><br>");
625: $warnings++;
1.43 albertel 626: }
1.46 albertel 627: if ($sdf eq 'S') { $unsend--; }
628: if ($sdf eq 'D') { $unsend++; }
1.1 albertel 629: }
1.46 albertel 630:
1.48 albertel 631: &log($fh,"<p>Total unsend messages: <b>$unsend</b></p>\n");
1.43 albertel 632: $warnings=$warnings+5*$unsend;
1.1 albertel 633:
1.43 albertel 634: if ($unsend) { $simplestatus{'unsend'}=$unsend; }
1.48 albertel 635: &log($fh,"<h3>Outgoing Buffer</h3>\n<pre>");
1.68 www 636: # list directory with delayed messages and remember offline servers
637: my %servers=();
1.43 albertel 638: open (DFH,"ls -lF $perlvar{'lonSockDir'}/delayed|");
1.68 www 639: while (my $line=<DFH>) {
640: my ($server)=($line=~/\.(\w+)$/);
641: if ($server) { $servers{$server}=1; }
1.48 albertel 642: &log($fh,&encode_entities($line,'<>&"'));
1.46 albertel 643: }
1.48 albertel 644: &log($fh,"</pre>\n");
1.43 albertel 645: close (DFH);
1.68 www 646: # pong to all servers that have delayed messages
647: # this will trigger a reverse connection, which should flush the buffers
648: foreach my $tryserver (keys %servers) {
1.72 albertel 649: my $answer=&Apache::lonnet::reply("pong",$tryserver);
1.69 www 650: &log($fh,"Pong to $tryserver: $answer<br />");
1.68 www 651: }
1.46 albertel 652: }
1.1 albertel 653:
1.46 albertel 654: sub finish_logging {
655: my ($fh)=@_;
1.48 albertel 656: &log($fh,"<a name='errcount' />\n");
1.43 albertel 657: $totalcount=$notices+4*$warnings+100*$errors;
658: &errout($fh);
1.46 albertel 659: &log($fh,"<h1>Total Error Count: $totalcount</h1>");
660: my $now=time;
661: my $date=localtime($now);
1.48 albertel 662: &log($fh,"<hr />$date ($now)</body></html>\n");
1.43 albertel 663: print "lon-status webpage updated\n";
664: $fh->close();
1.46 albertel 665:
666: if ($errors) { $simplestatus{'errors'}=$errors; }
667: if ($warnings) { $simplestatus{'warnings'}=$warnings; }
668: if ($notices) { $simplestatus{'notices'}=$notices; }
669: $simplestatus{'time'}=time;
1.1 albertel 670: }
671:
1.46 albertel 672: sub log_simplestatus {
1.73 albertel 673: rename("$statusdir/newstatus.html","$statusdir/index.html");
1.46 albertel 674:
1.43 albertel 675: my $sfh=IO::File->new(">$statusdir/loncron_simple.txt");
676: foreach (keys %simplestatus) {
677: print $sfh $_.'='.$simplestatus{$_}.'&';
678: }
679: print $sfh "\n";
680: $sfh->close();
1.41 www 681: }
1.46 albertel 682:
683: sub send_mail {
1.43 albertel 684: print "sending mail\n";
1.79 raeburn 685: my $defdom = $perlvar{'lonDefDomain'};
686: my $origmail = $perlvar{'lonAdmEMail'};
1.78 raeburn 687: my $emailto = &Apache::loncommon::build_recipient_list(undef,
688: 'lonstatusmail',$defdom,$origmail);
1.54 www 689: if ($totalcount>2500) {
1.43 albertel 690: $emailto.=",$perlvar{'lonSysEMail'}";
691: }
1.46 albertel 692: my $subj="LON: $perlvar{'lonHostID'} E:$errors W:$warnings N:$notices";
1.52 albertel 693:
1.58 albertel 694: my $result=system("metasend -b -S 4000000 -t $emailto -s '$subj' -f $statusdir/index.html -m text/html >& /dev/null");
1.52 albertel 695: if ($result != 0) {
696: $result=system("mail -s '$subj' $emailto < $statusdir/index.html");
697: }
1.1 albertel 698: }
1.46 albertel 699:
1.49 albertel 700: sub usage {
701: print(<<USAGE);
702: loncron - housekeeping program that checks up on various parts of Lon-CAPA
703:
704: Options:
1.71 albertel 705: --help Display
1.49 albertel 706: --noemail Do not send the status email
707: --justcheckconnections Only check the current status of the lonc/d
708: connections, do not send emails do not
709: check if the daemons are running, do not
710: generate lon-status
711: --justcheckdaemons Only check that all of the Lon-CAPA daemons are
712: running, do not send emails do not
713: check the lonc/d connections, do not
714: generate lon-status
1.59 albertel 715: --justreload Only tell the daemons to reload the config files,
716: do not send emails do not
717: check if the daemons are running, do not
718: generate lon-status
1.49 albertel 719:
720: USAGE
721: }
722:
1.46 albertel 723: # ================================================================ Main Program
724: sub main () {
1.71 albertel 725: my ($help,$justcheckdaemons,$noemail,$justcheckconnections,
1.59 albertel 726: $justreload);
1.49 albertel 727: &GetOptions("help" => \$help,
728: "justcheckdaemons" => \$justcheckdaemons,
729: "noemail" => \$noemail,
1.59 albertel 730: "justcheckconnections" => \$justcheckconnections,
731: "justreload" => \$justreload
1.49 albertel 732: );
733: if ($help) { &usage(); return; }
1.46 albertel 734: # --------------------------------- Read loncapa_apache.conf and loncapa.conf
735: my $perlvarref=LONCAPA::Configuration::read_conf('loncapa.conf');
736: %perlvar=%{$perlvarref};
737: undef $perlvarref;
738: delete $perlvar{'lonReceipt'}; # remove since sensitive and not needed
739: delete $perlvar{'lonSqlAccess'}; # remove since sensitive and not needed
1.75 albertel 740: chdir($perlvar{'lonDaemons'});
1.46 albertel 741: # --------------------------------------- Make sure that LON-CAPA is configured
742: # I only test for one thing here (lonHostID). This is just a safeguard.
743: if ('{[[[[lonHostID]]]]}' eq $perlvar{'lonHostID'}) {
744: print("Unconfigured machine.\n");
745: my $emailto=$perlvar{'lonSysEMail'};
746: my $hostname=`/bin/hostname`;
747: chop $hostname;
748: $hostname=~s/[^\w\.]//g; # make sure is safe to pass through shell
749: my $subj="LON: Unconfigured machine $hostname";
750: system("echo 'Unconfigured machine $hostname.' |\
751: mailto $emailto -s '$subj' > /dev/null");
752: exit 1;
753: }
754:
755: # ----------------------------- Make sure this process is running from user=www
756: my $wwwid=getpwnam('www');
757: if ($wwwid!=$<) {
758: print("User ID mismatch. This program must be run as user 'www'\n");
759: my $emailto="$perlvar{'lonAdmEMail'},$perlvar{'lonSysEMail'}";
760: my $subj="LON: $perlvar{'lonHostID'} User ID mismatch";
761: system("echo 'User ID mismatch. loncron must be run as user www.' |\
762: mailto $emailto -s '$subj' > /dev/null");
763: exit 1;
764: }
765:
1.72 albertel 766: # -------------------------------------------- Force reload of host information
767: &Apache::lonnet::load_hosts_tab(1);
768: &Apache::lonnet::load_domain_tab(1);
769: &Apache::lonnet::get_iphost(1);
1.46 albertel 770:
1.81 raeburn 771: # ----------------------------------------- Force firewall update for lond port
772:
773: if ((!$justcheckdaemons) && (!$justreload)) {
774: my $now = time;
775: my $tmpfile = $perlvar{'lonDaemons'}.'/tmp/lciptables_iphost_'.
776: $now.$$.int(rand(10000));
777: if (open(my $fh,">$tmpfile")) {
778: my %iphosts = &Apache::lonnet::get_iphost();
779: foreach my $key (keys(%iphosts)) {
780: print $fh "$key\n";
781: }
782: close($fh);
783: my $execpath = $perlvar{'lonDaemons'}.'/lciptables';
784: system("$execpath $tmpfile");
785: unlink($fh);
786: }
787: }
788:
1.46 albertel 789: # ---------------------------------------------------------------- Start report
790:
791: $errors=0;
792: $warnings=0;
793: $notices=0;
794:
795:
1.49 albertel 796: my $fh;
1.59 albertel 797: if (!$justcheckdaemons && !$justcheckconnections && !$justreload) {
1.72 albertel 798: $fh=&start_logging();
1.49 albertel 799:
800: &log_machine_info($fh);
801: &clean_tmp($fh);
802: &clean_lonIDs($fh);
803: &check_httpd_logs($fh);
804: &rotate_lonnet_logs($fh);
1.73 albertel 805: &rotate_other_logs($fh);
1.49 albertel 806: }
1.59 albertel 807: if (!$justcheckconnections && !$justreload) {
1.76 albertel 808: &checkon_daemon($fh,'lonmemcached',40000);
1.49 albertel 809: &checkon_daemon($fh,'lonsql',200000);
1.63 albertel 810: if ( &checkon_daemon($fh,'lond',40000,'USR1') eq 'running') {
811: &checkon_daemon($fh,'lond',40000,'USR2');
812: }
1.71 albertel 813: &checkon_daemon($fh,'lonc',40000,'USR1');
1.70 raeburn 814: &checkon_daemon($fh,'lonmaxima',40000);
1.80 www 815: &checkon_daemon($fh,'lonr',40000);
1.49 albertel 816: }
1.59 albertel 817: if ($justreload) {
818: &checkon_daemon($fh,'lond',40000,'USR2');
1.71 albertel 819: &checkon_daemon($fh,'lonc',40000,'USR2');
1.59 albertel 820: }
1.63 albertel 821: if ($justcheckconnections) {
1.72 albertel 822: &test_connections($fh);
1.49 albertel 823: }
1.59 albertel 824: if (!$justcheckdaemons && !$justcheckconnections && !$justreload) {
1.72 albertel 825: &check_delayed_msg($fh);
1.49 albertel 826: &finish_logging($fh);
827: &log_simplestatus();
828:
829: if ($totalcount>200 && !$noemail) { &send_mail(); }
830: }
1.46 albertel 831: }
832:
833: &main();
1.1 albertel 834: 1;
835:
836:
837:
838:
839:
840:
841:
842:
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