File:
[LON-CAPA] /
loncom /
loncron
Revision
1.114:
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Sun Nov 18 22:50:46 2018 UTC (5 years, 6 months ago) by
raeburn
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MAIN
CVS tags:
HEAD
- Scanning of lonnet.perm.log by loncron
- Information about which nodes have unsent update transactions is logged.
- Specific nodes can be excluded from unsend count (for delayed updates)
via domain configuration.
- Weight for unsend count (before adding to "warnings") is configurable.
1: #!/usr/bin/perl
2:
3: # Housekeeping program, started by cron, loncontrol and loncron.pl
4: #
5: # $Id: loncron,v 1.114 2018/11/18 22:50:46 raeburn 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 LONCAPA::Checksumming;
36: use LONCAPA;
37: use Apache::lonnet;
38: use Apache::loncommon;
39:
40: use IO::File;
41: use IO::Socket;
42: use HTML::Entities;
43: use Getopt::Long;
44: use GDBM_File;
45: use Storable qw(thaw);
46: use File::ReadBackwards;
47: #globals
48: use vars qw (%perlvar %simplestatus $errors $warnings $notices $totalcount);
49:
50: my $statusdir="/home/httpd/html/lon-status";
51:
52:
53: # --------------------------------------------------------- Output error status
54:
55: sub log {
56: my $fh=shift;
57: if ($fh) { print $fh @_ }
58: }
59:
60: sub errout {
61: my $fh=shift;
62: &log($fh,(<<ENDERROUT));
63: <table border="2" bgcolor="#CCCCCC">
64: <tr><td>Notices</td><td>$notices</td></tr>
65: <tr><td>Warnings</td><td>$warnings</td></tr>
66: <tr><td>Errors</td><td>$errors</td></tr>
67: </table><p><a href="#top">Top</a></p>
68: ENDERROUT
69: }
70:
71: sub rotate_logfile {
72: my ($file,$fh,$description) = @_;
73: my $size=(stat($file))[7];
74: if ($size>40000) {
75: &log($fh,"<p>Rotating $description ...</p>");
76: rename("$file.2","$file.3");
77: rename("$file.1","$file.2");
78: rename("$file","$file.1");
79: }
80: }
81:
82: sub start_daemon {
83: my ($fh,$daemon,$pidfile,$args) = @_;
84: my $progname=$daemon;
85: if ($daemon eq 'lonc') {
86: $progname='loncnew';
87: }
88: my $error_fname="$perlvar{'lonDaemons'}/logs/${daemon}_errors";
89: &rotate_logfile($error_fname,$fh,'error logs');
90: if ($daemon eq 'lonc') {
91: &clean_sockets($fh);
92: }
93: system("$perlvar{'lonDaemons'}/$progname 2>$perlvar{'lonDaemons'}/logs/${daemon}_errors");
94: sleep 1;
95: if (-e $pidfile) {
96: &log($fh,"<p>Seems like it started ...</p>");
97: my $lfh=IO::File->new("$pidfile");
98: my $daemonpid=<$lfh>;
99: chomp($daemonpid);
100: if ($daemonpid =~ /^\d+$/ && kill 0 => $daemonpid) {
101: return 1;
102: } else {
103: return 0;
104: }
105: }
106: &log($fh,"<p>Seems like that did not work!</p>");
107: $errors++;
108: return 0;
109: }
110:
111: sub checkon_daemon {
112: my ($fh,$daemon,$maxsize,$send,$args)=@_;
113:
114: my $result;
115: &log($fh,'<hr /><a name="'.$daemon.'" /><h2>'.$daemon.'</h2><h3>Log</h3><p style="white-space: pre;"><tt>');
116: printf("%-15s ",$daemon);
117: if ($fh) {
118: if (-e "$perlvar{'lonDaemons'}/logs/$daemon.log"){
119: if (open(DFH,"tail -n25 $perlvar{'lonDaemons'}/logs/$daemon.log|")) {
120: while (my $line=<DFH>) {
121: &log($fh,"$line");
122: if ($line=~/INFO/) { $notices++; }
123: if ($line=~/WARNING/) { $notices++; }
124: if ($line=~/CRITICAL/) { $warnings++; }
125: }
126: close (DFH);
127: }
128: }
129: &log($fh,"</tt></p>");
130: }
131:
132: my $pidfile="$perlvar{'lonDaemons'}/logs/$daemon.pid";
133:
134: my $restartflag=1;
135: my $daemonpid;
136: if (-e $pidfile) {
137: my $lfh=IO::File->new("$pidfile");
138: $daemonpid=<$lfh>;
139: chomp($daemonpid);
140: if ($daemonpid =~ /^\d+$/ && kill 0 => $daemonpid) {
141: &log($fh,"<h3>$daemon at pid $daemonpid responding");
142: if ($send) { &log($fh,", sending $send"); }
143: &log($fh,"</h3>");
144: if ($send eq 'USR1') { kill USR1 => $daemonpid; }
145: if ($send eq 'USR2') { kill USR2 => $daemonpid; }
146: $restartflag=0;
147: if ($send eq 'USR2') {
148: $result = 'reloaded';
149: print "reloaded\n";
150: } else {
151: $result = 'running';
152: print "running\n";
153: }
154: } else {
155: $errors++;
156: &log($fh,"<h3>$daemon at pid $daemonpid not responding</h3>");
157: $restartflag=1;
158: &log($fh,"<h3>Decided to clean up stale .pid file and restart $daemon</h3>");
159: }
160: }
161: if ($restartflag==1) {
162: $simplestatus{$daemon}='off';
163: $errors++;
164: my $kadaemon=$daemon;
165: if ($kadaemon eq 'lonmemcached') { $kadaemon='memcached'; }
166: &log($fh,'<br /><font color="red">Killall '.$daemon.': '.
167: `killall $kadaemon 2>&1`.' - ');
168: sleep 1;
169: &log($fh,unlink($pidfile).' - '.
170: `killall -9 $kadaemon 2>&1`.
171: '</font><br />');
172: if ($kadaemon eq 'loncnew') {
173: &clean_lonc_childpids();
174: }
175: &log($fh,"<h3>$daemon not running, trying to start</h3>");
176:
177: if (&start_daemon($fh,$daemon,$pidfile,$args)) {
178: &log($fh,"<h3>$daemon at pid $daemonpid responding</h3>");
179: $simplestatus{$daemon}='restarted';
180: $result = 'started';
181: print "started\n";
182: } else {
183: $errors++;
184: &log($fh,"<h3>$daemon at pid $daemonpid not responding</h3>");
185: &log($fh,"<p>Give it one more try ...</p>");
186: print " ";
187: if (&start_daemon($fh,$daemon,$pidfile,$args)) {
188: &log($fh,"<h3>$daemon at pid $daemonpid responding</h3>");
189: $simplestatus{$daemon}='restarted';
190: $result = 'started';
191: print "started\n";
192: } else {
193: $result = 'failed';
194: print " failed\n";
195: $simplestatus{$daemon}='failed';
196: $errors++; $errors++;
197: &log($fh,"<h3>$daemon at pid $daemonpid not responding</h3>");
198: &log($fh,"<p>Unable to start $daemon</p>");
199: }
200: }
201: if ($fh) {
202: if (-e "$perlvar{'lonDaemons'}/logs/$daemon.log"){
203: &log($fh,"<p><pre>");
204: if (open(DFH,"tail -n100 $perlvar{'lonDaemons'}/logs/$daemon.log|")) {
205: while (my $line=<DFH>) {
206: &log($fh,"$line");
207: if ($line=~/WARNING/) { $notices++; }
208: if ($line=~/CRITICAL/) { $notices++; }
209: }
210: close (DFH);
211: }
212: &log($fh,"</pre></p>");
213: }
214: }
215: }
216:
217: my $fname="$perlvar{'lonDaemons'}/logs/$daemon.log";
218: &rotate_logfile($fname,$fh,'logs');
219:
220: &errout($fh);
221: return $result;
222: }
223:
224: # --------------------------------------------------------------------- Machine
225: sub log_machine_info {
226: my ($fh)=@_;
227: &log($fh,'<hr /><a name="machine" /><h2>Machine Information</h2>');
228: &log($fh,"<h3>loadavg</h3>");
229:
230: open (LOADAVGH,"/proc/loadavg");
231: my $loadavg=<LOADAVGH>;
232: close (LOADAVGH);
233:
234: &log($fh,"<tt>$loadavg</tt>");
235:
236: my @parts=split(/\s+/,$loadavg);
237: if ($parts[1]>4.0) {
238: $errors++;
239: } elsif ($parts[1]>2.0) {
240: $warnings++;
241: } elsif ($parts[1]>1.0) {
242: $notices++;
243: }
244:
245: &log($fh,"<h3>df</h3>");
246: &log($fh,"<pre>");
247:
248: open (DFH,"df|");
249: while (my $line=<DFH>) {
250: &log($fh,&encode_entities($line,'<>&"'));
251: @parts=split(/\s+/,$line);
252: my $usage=$parts[4];
253: $usage=~s/\W//g;
254: if ($usage>90) {
255: $warnings++;
256: $notices++;
257: } elsif ($usage>80) {
258: $warnings++;
259: } elsif ($usage>60) {
260: $notices++;
261: }
262: if ($usage>95) { $warnings++; $warnings++; $simplestatus{'diskfull'}++; }
263: }
264: close (DFH);
265: &log($fh,"</pre>");
266:
267:
268: &log($fh,"<h3>ps</h3>");
269: &log($fh,"<pre>");
270: my $psproc=0;
271:
272: open (PSH,"ps aux --cols 140 |");
273: while (my $line=<PSH>) {
274: &log($fh,&encode_entities($line,'<>&"'));
275: $psproc++;
276: }
277: close (PSH);
278: &log($fh,"</pre>");
279:
280: if ($psproc>200) { $notices++; }
281: if ($psproc>250) { $notices++; }
282:
283: &log($fh,"<h3>distprobe</h3>");
284: &log($fh,"<pre>");
285: &log($fh,&encode_entities(&LONCAPA::distro(),'<>&"'));
286: &log($fh,"</pre>");
287:
288: &errout($fh);
289: }
290:
291: sub start_logging {
292: my $fh=IO::File->new(">$statusdir/newstatus.html");
293: my %simplestatus=();
294: my $now=time;
295: my $date=localtime($now);
296:
297:
298: &log($fh,(<<ENDHEADERS));
299: <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
300: <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
301: <head>
302: <title>LON Status Report $perlvar{'lonHostID'}</title>
303: <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
304: </head>
305: <body bgcolor="#AAAAAA">
306: <a name="top" />
307: <h1>LON Status Report $perlvar{'lonHostID'}</h1>
308: <h2>$date ($now)</h2>
309: <ol>
310: <li><a href="#configuration">Configuration</a></li>
311: <li><a href="#machine">Machine Information</a></li>
312: <li><a href="#tmp">Temporary Files</a></li>
313: <li><a href="#tokens">Session Tokens</a></li>
314: <li><a href="#webdav">WebDAV Session Tokens</a></li>
315: <li><a href="#httpd">httpd</a></li>
316: <li><a href="#lonsql">lonsql</a></li>
317: <li><a href="#lond">lond</a></li>
318: <li><a href="#lonc">lonc</a></li>
319: <li><a href="#lonnet">lonnet</a></li>
320: <li><a href="#connections">Connections</a></li>
321: <li><a href="#delayed">Delayed Messages</a></li>
322: <li><a href="#errcount">Error Count</a></li>
323: </ol>
324: <hr />
325: <a name="configuration" />
326: <h2>Configuration</h2>
327: <h3>PerlVars</h3>
328: <table border="2">
329: ENDHEADERS
330:
331: foreach my $varname (sort(keys(%perlvar))) {
332: &log($fh,"<tr><td>$varname</td><td>".
333: &encode_entities($perlvar{$varname},'<>&"')."</td></tr>\n");
334: }
335: &log($fh,"</table><h3>Hosts</h3><table border='2'>");
336: my %hostname = &Apache::lonnet::all_hostnames();
337: foreach my $id (sort(keys(%hostname))) {
338: my $role = (&Apache::lonnet::is_library($id) ? 'library'
339: : 'access');
340: &log($fh,
341: "<tr><td>$id</td><td>".&Apache::lonnet::host_domain($id).
342: "</td><td>".$role.
343: "</td><td>".&Apache::lonnet::hostname($id)."</td></tr>\n");
344: }
345: &log($fh,"</table><h3>Spare Hosts</h3>");
346: if (keys(%Apache::lonnet::spareid) > 0) {
347: &log($fh,"<ul>");
348: foreach my $type (sort(keys(%Apache::lonnet::spareid))) {
349: &log($fh,"<li>$type\n<ol>");
350: foreach my $id (@{ $Apache::lonnet::spareid{$type} }) {
351: &log($fh,"<li>$id</li>\n");
352: }
353: &log($fh,"</ol>\n</li>\n");
354: }
355: &log($fh,"</ul>\n");
356: } else {
357: &log($fh,"No spare hosts specified<br />\n");
358: }
359: return $fh;
360: }
361:
362: # --------------------------------------------------------------- clean out tmp
363: sub clean_tmp {
364: my ($fh)=@_;
365: &log($fh,'<hr /><a name="tmp" /><h2>Temporary Files</h2>');
366: my ($cleaned,$old,$removed) = (0,0,0);
367: my %errors = (
368: dir => [],
369: file => [],
370: failopen => [],
371: );
372: my %error_titles = (
373: dir => 'failed to remove empty directory:',
374: file => 'failed to unlike stale file',
375: failopen => 'failed to open file or directory'
376: );
377: ($cleaned,$old,$removed) = &recursive_clean_tmp('',$cleaned,$old,$removed,\%errors);
378: &log($fh,"Cleaned up: ".$cleaned." files; removed: $removed empty directories; (found: $old old checkout tokens)");
379: foreach my $key (sort(keys(%errors))) {
380: if (ref($errors{$key}) eq 'ARRAY') {
381: if (@{$errors{$key}} > 0) {
382: &log($fh,"Error during cleanup ($error_titles{$key}):<ul><li>".
383: join('</li><li><tt>',@{$errors{$key}}).'</tt></li></ul><br />');
384: }
385: }
386: }
387: }
388:
389: sub recursive_clean_tmp {
390: my ($subdir,$cleaned,$old,$removed,$errors) = @_;
391: my $base = "$perlvar{'lonDaemons'}/tmp";
392: my $path = $base;
393: next if ($subdir =~ m{\.\./});
394: next unless (ref($errors) eq 'HASH');
395: unless ($subdir eq '') {
396: $path .= '/'.$subdir;
397: }
398: if (opendir(my $dh,"$path")) {
399: while (my $file = readdir($dh)) {
400: next if ($file =~ /^\.\.?$/);
401: my $fname = "$path/$file";
402: if (-d $fname) {
403: my $innerdir;
404: if ($subdir eq '') {
405: $innerdir = $file;
406: } else {
407: $innerdir = $subdir.'/'.$file;
408: }
409: ($cleaned,$old,$removed) =
410: &recursive_clean_tmp($innerdir,$cleaned,$old,$removed,$errors);
411: my @doms = &Apache::lonnet::current_machine_domains();
412:
413: if (open(my $dirhandle,$fname)) {
414: unless (($innerdir eq 'helprequests') ||
415: (($innerdir =~ /^addcourse/) && ($innerdir !~ m{/\d+$}))) {
416: my @contents = grep {!/^\.\.?$/} readdir($dirhandle);
417: join('&&',@contents)."\n";
418: if (scalar(grep {!/^\.\.?$/} readdir($dirhandle)) == 0) {
419: closedir($dirhandle);
420: if ($fname =~ m{^\Q$perlvar{'lonDaemons'}\E/tmp/}) {
421: if (rmdir($fname)) {
422: $removed ++;
423: } elsif (ref($errors->{dir}) eq 'ARRAY') {
424: push(@{$errors->{dir}},$fname);
425: }
426: }
427: }
428: } else {
429: closedir($dirhandle);
430: }
431: }
432: } else {
433: my ($dev,$ino,$mode,$nlink,
434: $uid,$gid,$rdev,$size,
435: $atime,$mtime,$ctime,
436: $blksize,$blocks)=stat($fname);
437: my $now=time;
438: my $since=$now-$mtime;
439: if ($since>$perlvar{'lonExpire'}) {
440: if ($subdir eq '') {
441: my $line='';
442: if ($fname =~ /\.db$/) {
443: if (unlink($fname)) {
444: $cleaned++;
445: } elsif (ref($errors->{file}) eq 'ARRAY') {
446: push(@{$errors->{file}},$fname);
447: }
448: } elsif (open(PROBE,$fname)) {
449: my $line='';
450: $line=<PROBE>;
451: close(PROBE);
452: if ($line=~/^CHECKOUTTOKEN\&/) {
453: if ($since>365*$perlvar{'lonExpire'}) {
454: if (unlink($fname)) {
455: $cleaned++;
456: } elsif (ref($errors->{file}) eq 'ARRAY') {
457: push(@{$errors->{file}},$fname);
458: }
459: } else {
460: $old++;
461: }
462: } else {
463: if (unlink($fname)) {
464: $cleaned++;
465: } elsif (ref($errors->{file}) eq 'ARRAY') {
466: push(@{$errors->{file}},$fname);
467: }
468: }
469: } elsif (ref($errors->{failopen}) eq 'ARRAY') {
470: push(@{$errors->{failopen}},$fname);
471: }
472: } else {
473: if (unlink($fname)) {
474: $cleaned++;
475: } elsif (ref($errors->{file}) eq 'ARRAY') {
476: push(@{$errors->{file}},$fname);
477: }
478: }
479: }
480: }
481: }
482: closedir($dh);
483: } elsif (ref($errors->{failopen}) eq 'ARRAY') {
484: push(@{$errors->{failopen}},$path);
485: }
486: return ($cleaned,$old,$removed);
487: }
488:
489: # ------------------------------------------------------------ clean out lonIDs
490: sub clean_lonIDs {
491: my ($fh)=@_;
492: &log($fh,'<hr /><a name="tokens" /><h2>Session Tokens</h2>');
493: my $cleaned=0;
494: my $active=0;
495: while (my $fname=<$perlvar{'lonIDsDir'}/*>) {
496: my ($dev,$ino,$mode,$nlink,
497: $uid,$gid,$rdev,$size,
498: $atime,$mtime,$ctime,
499: $blksize,$blocks)=stat($fname);
500: my $now=time;
501: my $since=$now-$mtime;
502: if ($since>$perlvar{'lonExpire'}) {
503: $cleaned++;
504: &log($fh,"Unlinking $fname<br />");
505: unlink("$fname");
506: } else {
507: $active++;
508: }
509: }
510: &log($fh,"<p>Cleaned up ".$cleaned." stale session token(s).</p>");
511: &log($fh,"<h3>$active open session(s)</h3>");
512: }
513:
514: # ------------------------------------------------ clean out webDAV Session IDs
515: sub clean_webDAV_sessionIDs {
516: my ($fh)=@_;
517: if ($perlvar{'lonRole'} eq 'library') {
518: &log($fh,'<hr /><a name="webdav" /><h2>WebDAV Session Tokens</h2>');
519: my $cleaned=0;
520: my $active=0;
521: my $now = time;
522: if (-d $perlvar{'lonDAVsessDir'}) {
523: while (my $fname=<$perlvar{'lonDAVsessDir'}/*>) {
524: my @stats = stat($fname);
525: my $since=$now-$stats[9];
526: if ($since>$perlvar{'lonExpire'}) {
527: $cleaned++;
528: &log($fh,"Unlinking $fname<br />");
529: unlink("$fname");
530: } else {
531: $active++;
532: }
533: }
534: &log($fh,"<p>Cleaned up ".$cleaned." stale webDAV session token(s).</p>");
535: &log($fh,"<h3>$active open webDAV session(s)</h3>");
536: }
537: }
538: }
539:
540: # ----------------------------------------------------------- clean out sockets
541: sub clean_sockets {
542: my ($fh)=@_;
543: my $cleaned=0;
544: opendir(SOCKETS,$perlvar{'lonSockDir'});
545: while (my $fname=readdir(SOCKETS)) {
546: next if (-d $fname
547: || $fname=~/(mysqlsock|maximasock|rsock|\Q$perlvar{'lonSockDir'}\E)/);
548: $cleaned++;
549: &log($fh,"Unlinking $fname<br />");
550: unlink("/home/httpd/sockets/$fname");
551: }
552: &log($fh,"<p>Cleaned up ".$cleaned." stale sockets.</p>");
553: }
554:
555:
556: # ----------------------------------------------------------------------- httpd
557: sub check_httpd_logs {
558: my ($fh)=@_;
559: if (open(PIPE,"./lchttpdlogs|")) {
560: while (my $line=<PIPE>) {
561: &log($fh,$line);
562: if ($line=~/\[error\]/) { $notices++; }
563: }
564: close(PIPE);
565: }
566: &errout($fh);
567: }
568:
569: # ---------------------------------------------------------------------- lonnet
570:
571: sub rotate_lonnet_logs {
572: my ($fh)=@_;
573: &log($fh,'<hr /><a name="lonnet" /><h2>lonnet</h2><h3>Temp Log</h3><pre>');
574: print "Checking logs.\n";
575: if (-e "$perlvar{'lonDaemons'}/logs/lonnet.log"){
576: open (DFH,"tail -n50 $perlvar{'lonDaemons'}/logs/lonnet.log|");
577: while (my $line=<DFH>) {
578: &log($fh,&encode_entities($line,'<>&"'));
579: }
580: close (DFH);
581: }
582: &log($fh,"</pre><h3>Perm Log</h3><pre>");
583:
584: if (-e "$perlvar{'lonDaemons'}/logs/lonnet.perm.log") {
585: open(DFH,"tail -n10 $perlvar{'lonDaemons'}/logs/lonnet.perm.log|");
586: while (my $line=<DFH>) {
587: &log($fh,&encode_entities($line,'<>&"'));
588: }
589: close (DFH);
590: } else { &log($fh,"No perm log\n") }
591:
592: my $fname="$perlvar{'lonDaemons'}/logs/lonnet.log";
593: &rotate_logfile($fname,$fh,'lonnet log');
594:
595: &log($fh,"</pre>");
596: &errout($fh);
597: }
598:
599: sub rotate_other_logs {
600: my ($fh) = @_;
601: my %logs = (
602: autoenroll => 'Auto Enroll log',
603: autocreate => 'Create Course log',
604: searchcat => 'Search Cataloguing log',
605: autoupdate => 'Auto Update log',
606: refreshcourseids_db => 'Refresh CourseIDs db log',
607: );
608: foreach my $item (keys(%logs)) {
609: my $fname=$perlvar{'lonDaemons'}.'/logs/'.$item.'.log';
610: &rotate_logfile($fname,$fh,$logs{$item});
611: }
612: }
613:
614: # ----------------------------------------------------------------- Connections
615: sub test_connections {
616: my ($fh)=@_;
617: &log($fh,'<hr /><a name="connections" /><h2>Connections</h2>');
618: print "Testing connections.\n";
619: &log($fh,"<table border='2'>");
620: my ($good,$bad)=(0,0);
621: my %hostname = &Apache::lonnet::all_hostnames();
622: foreach my $tryserver (sort(keys(%hostname))) {
623: print(".");
624: my $result;
625: my $answer=&Apache::lonnet::reply("ping",$tryserver);
626: if ($answer eq "$tryserver:$perlvar{'lonHostID'}") {
627: $result="<b>ok</b>";
628: $good++;
629: } else {
630: $result=$answer;
631: $warnings++;
632: if ($answer eq 'con_lost') {
633: $bad++;
634: $warnings++;
635: } else {
636: $good++; #self connection
637: }
638: }
639: if ($answer =~ /con_lost/) { print(" $tryserver down\n"); }
640: &log($fh,"<tr><td>$tryserver</td><td>$result</td></tr>\n");
641: }
642: &log($fh,"</table>");
643: print "\n$good good, $bad bad connections\n";
644: &errout($fh);
645: }
646:
647:
648: # ------------------------------------------------------------ Delayed messages
649: sub check_delayed_msg {
650: my ($fh,$weightsref,$exclusionsref)=@_;
651: &log($fh,'<hr /><a name="delayed" /><h2>Delayed Messages</h2>');
652: print "Checking buffers.\n";
653:
654: &log($fh,'<h3>Scanning Permanent Log</h3>');
655:
656: my $unsend=0;
657: my $ignored=0;
658:
659: my %hostname = &Apache::lonnet::all_hostnames();
660: my $numhosts = scalar(keys(%hostname));
661: my $checkbackwards = 0;
662: my $checkfrom = 0;
663: my $checkexcluded = 0;
664: my (%bymachine,%weights,%exclusions,%serverhomes);
665: if (ref($weightsref) eq 'HASH') {
666: %weights = %{$weightsref};
667: }
668: if (ref($exclusionsref) eq 'HASH') {
669: %exclusions = %{$exclusionsref};
670: if (keys(%exclusions)) {
671: $checkexcluded = 1;
672: %serverhomes = &read_serverhomeIDs();
673: }
674: }
675:
676: #
677: # For LON-CAPA 1.2.0 to 2.1.3 (release dates: 8/31/2004 and 3/31/2006) any
678: # entry logged in lonnet.perm.log for completion of a delayed (critical)
679: # transaction lacked the hostID for the remote node to which the command
680: # to be completed was sent.
681: #
682: # Because of this, exclusion of items in lonnet.perm.log for nodes which are
683: # no longer part of the cluster from adding to the overall "unsend" count
684: # needs additional effort besides the changes made in loncron rev. 1.105.
685: #
686: # For "S" (completion) events logging in LON-CAPA 1.2.0 through 2.1.3 included
687: # "LondTransaction=HASH(hexadecimal)->getClient() :$cmd, where the hexadecimal
688: # is a memory location, and $cmd is the command sent to the remote node.
689: #
690: # Starting with 2.2.0 (released 8/21/2006) logging for "S" (completion) events
691: # had sethost:$host_id:$cmd after LondTransaction=HASH(hexadecimal)->getClient()
692: #
693: # Starting with 2.4.1 (released 6/13/2007) logging for "S" replaced echoing the
694: # getClient() call with the result of the Transaction->getClient() call itself
695: # undef for completion of delivery of a delayed message.
696: #
697: # The net effect of these changes is that lonnet.perm.log is now accessed three
698: # times: (a) oldest record is checked, if earlier than release date for 2.5.0
699: # then (b) file is read backwards, with timestamp recorded for most recent
700: # instance of logged "S" event for "update" command without "sethost:$host_id:"
701: # then (c) file is read forward with records ignored which predate the timestamp
702: # recorded in (b), if one was found.
703: #
704: # In (c), when calculating the unsend total, i.e., the difference between delayed
705: # transactions ("D") and sent transactions ("S"), transactions are ignored if the
706: # target node is no longer in the cluster, and also (for "update" commands), if
707: # the target node is in the list of nodes excluded from the count, in the domain
708: # configuration for this machine's default domain. The idea here is to remove
709: # delayed "update" commands for nodes for which inbound access to port 5663,
710: # is blocked, but are still part of the LON-CAPA network, (i.e., they can still
711: # replicate content from other nodes).
712: #
713:
714: my $dfh=IO::File->new("$perlvar{'lonDaemons'}/logs/lonnet.perm.log","r");
715: if (defined($dfh)) {
716: while (my $line=<$dfh>) {
717: my ($time,$sdf,$rest)=split(/:/,$line,3);
718: if ($time < 1541185772) {
719: $checkbackwards = 1;
720: }
721: last;
722: }
723: undef $dfh;
724: }
725:
726: if ($checkbackwards) {
727: if (tie *BW, 'File::ReadBackwards', "$perlvar{'lonDaemons'}/logs/lonnet.perm.log") {
728: while(my $line=<BW>) {
729: if ($line =~ /\QLondTransaction=HASH\E[^:]+:update:/) {
730: ($checkfrom) = split(/:/,$line,2);
731: last;
732: }
733: }
734: close(BW);
735: }
736: }
737: $dfh=IO::File->new("$perlvar{'lonDaemons'}/logs/lonnet.perm.log","r");
738: if (defined($dfh)) {
739: while (my $line=<$dfh>) {
740: my ($time,$sdf,$rest)=split(/:/,$line,3);
741: next unless (($sdf eq 'F') || ($sdf eq 'S') || ($sdf eq 'D'));
742: next if (($checkfrom) && ($time <= $checkfrom));
743: my ($dserv,$dcmd);
744: if ($sdf eq 'S') {
745: my ($serva,$cmda,$servb,$cmdb) = split(/:/,$rest);
746: if ($cmda eq 'sethost') {
747: chomp($cmdb);
748: $dcmd = $cmdb;
749: } else {
750: $dcmd = $cmda;
751: }
752: if (($serva =~ /^LondTransaction/) || ($serva eq '')) {
753: unless (($servb eq '') || ($servb =~ m{^/})) {
754: $dserv = $servb;
755: }
756: } else {
757: $dserv = $serva;
758: }
759: } else {
760: ($dserv,$dcmd) = split(/:/,$rest);
761: }
762: if ($sdf eq 'F') {
763: my $local=localtime($time);
764: &log($fh,"<b>Failed: $time, $dserv, $dcmd</b><br />");
765: $warnings++;
766: }
767: next if ((($dserv eq '') || ($dcmd eq '')) && ($sdf ne 'F'));
768: if ($sdf eq 'S') {
769: if ($dcmd eq 'update') {
770: if ($hostname{$dserv}) {
771: if ($exclusions{$serverhomes{$hostname{$dserv}}}) {
772: $ignored --;
773: } else {
774: $unsend --;
775: }
776: }
777: if (exists($bymachine{$dserv})) {
778: $bymachine{$dserv} --;
779: } else {
780: $bymachine{$dserv} = -1;
781: }
782: } else {
783: if ($hostname{$dserv}) {
784: $unsend --;
785: }
786: }
787: } elsif ($sdf eq 'D') {
788: if ($dcmd eq 'update') {
789: if ($hostname{$dserv}) {
790: if ($exclusions{$serverhomes{$hostname{$dserv}}}) {
791: $ignored ++;
792: } else {
793: $unsend ++;
794: }
795: }
796: if (exists($bymachine{$dserv})) {
797: $bymachine{$dserv} ++;
798: } else {
799: $bymachine{$dserv} = 1;
800: }
801: } else {
802: if ($hostname{$dserv}) {
803: $unsend ++;
804: }
805: }
806: }
807: }
808: undef $dfh;
809: my $nodest = 0;
810: my $retired = 0;
811: my %active;
812: if (keys(%bymachine)) {
813: unless ($checkexcluded) {
814: %serverhomes = &read_serverhomeIDs();
815: }
816: foreach my $key (keys(%bymachine)) {
817: if ($bymachine{$key} > 0) {
818: if ($hostname{$key}) {
819: $active{$serverhomes{$hostname{$key}}} += $bymachine{$key};
820: } else {
821: $retired ++;
822: $nodest += $bymachine{$key};
823: }
824: }
825: }
826: }
827: if (keys(%active)) {
828: &log($fh,"<p>Unsend messages by node, active (undegraded) nodes in cluster</p>\n");
829: foreach my $key (sort(keys(%active))) {
830: &log($fh,&encode_entities("$key => $active{$key}",'<>&"')."\n");
831: }
832: }
833: &log($fh,"<p>Total unsend messages: <b>$unsend</b> for ".scalar(keys(%active))." active (undegraded) nodes in cluster.</p>\n");
834: if (keys(%exclusions) > 0) {
835: &log($fh,"<p>Total incomplete updates <b>$ignored</b> for ".scalar(keys(%exclusions))." degraded nodes in cluster.</p>\n");
836: }
837: if ($retired) {
838: &log($fh,"<p>Total unsent <b>$nodest</b> for $retired nodes no longer in cluster.</p>\n");
839: }
840: if ($unsend > 0) {
841: $warnings=$warnings+$weights{'U'}*$unsend;
842: }
843: }
844:
845: if ($unsend) { $simplestatus{'unsend'}=$unsend; }
846: &log($fh,"<h3>Outgoing Buffer</h3>\n<pre>");
847: # list directory with delayed messages and remember offline servers
848: my %servers=();
849: open (DFH,"ls -lF $perlvar{'lonSockDir'}/delayed|");
850: while (my $line=<DFH>) {
851: my ($server)=($line=~/\.(\w+)$/);
852: if ($server) { $servers{$server}=1; }
853: &log($fh,&encode_entities($line,'<>&"'));
854: }
855: &log($fh,"</pre>\n");
856: close (DFH);
857: # pong to all servers that have delayed messages
858: # this will trigger a reverse connection, which should flush the buffers
859: foreach my $tryserver (sort(keys(%servers))) {
860: if ($hostname{$tryserver} || !$numhosts) {
861: my $answer;
862: eval {
863: local $SIG{ ALRM } = sub { die "TIMEOUT" };
864: alarm(20);
865: $answer = &Apache::lonnet::reply("pong",$tryserver);
866: alarm(0);
867: };
868: if ($@ && $@ =~ m/TIMEOUT/) {
869: &log($fh,"Attempted pong to $tryserver timed out<br />");
870: print "Time out while contacting: $tryserver for pong.\n";
871: } else {
872: &log($fh,"Pong to $tryserver: $answer<br />");
873: }
874: } else {
875: &log($fh,"$tryserver has delayed messages, but is not part of the cluster -- skipping 'Pong'.<br />");
876: }
877: }
878: }
879:
880: sub finish_logging {
881: my ($fh,$weightsref)=@_;
882: my %weights;
883: if (ref($weightsref) eq 'HASH') {
884: %weights = %{$weightsref};
885: }
886: &log($fh,"<a name='errcount' />\n");
887: $totalcount=($weights{'N'}*$notices)+($weights{'W'}*$warnings)+($weights{'E'}*$errors);
888: &errout($fh);
889: &log($fh,"<h1>Total Error Count: $totalcount</h1>");
890: my $now=time;
891: my $date=localtime($now);
892: &log($fh,"<hr />$date ($now)</body></html>\n");
893: print "lon-status webpage updated.\n";
894: $fh->close();
895:
896: if ($errors) { $simplestatus{'errors'}=$errors; }
897: if ($warnings) { $simplestatus{'warnings'}=$warnings; }
898: if ($notices) { $simplestatus{'notices'}=$notices; }
899: $simplestatus{'time'}=time;
900: }
901:
902: sub log_simplestatus {
903: rename("$statusdir/newstatus.html","$statusdir/index.html");
904:
905: my $sfh=IO::File->new(">$statusdir/loncron_simple.txt");
906: foreach (keys %simplestatus) {
907: print $sfh $_.'='.$simplestatus{$_}.'&';
908: }
909: print $sfh "\n";
910: $sfh->close();
911: }
912:
913: sub write_loncaparevs {
914: print "Retrieving LON-CAPA version information.\n";
915: my %hostname = &Apache::lonnet::all_hostnames();
916: my $output;
917: foreach my $id (sort(keys(%hostname))) {
918: if ($id ne '') {
919: my $loncaparev;
920: eval {
921: local $SIG{ ALRM } = sub { die "TIMEOUT" };
922: alarm(10);
923: $loncaparev =
924: &Apache::lonnet::get_server_loncaparev('',$id,1,'loncron');
925: alarm(0);
926: };
927: if ($@ && $@ =~ m/TIMEOUT/) {
928: print "Time out while contacting lonHost: $id for version.\n";
929: }
930: if ($loncaparev =~ /^[\w.\-]+$/) {
931: $output .= $id.':'.$loncaparev."\n";
932: }
933: }
934: }
935: if ($output) {
936: if (open(my $fh,">$perlvar{'lonTabDir'}/loncaparevs.tab")) {
937: print $fh $output;
938: close($fh);
939: &Apache::lonnet::load_loncaparevs();
940: }
941: }
942: return;
943: }
944:
945: sub write_serverhomeIDs {
946: print "Retrieving LON-CAPA lonHostID information.\n";
947: my %name_to_host = &Apache::lonnet::all_names();
948: my $output;
949: foreach my $name (sort(keys(%name_to_host))) {
950: if ($name ne '') {
951: if (ref($name_to_host{$name}) eq 'ARRAY') {
952: my $serverhomeID;
953: eval {
954: local $SIG{ ALRM } = sub { die "TIMEOUT" };
955: alarm(10);
956: $serverhomeID =
957: &Apache::lonnet::get_server_homeID($name,1,'loncron');
958: alarm(0);
959: };
960: if ($@ && $@ =~ m/TIMEOUT/) {
961: print "Time out while contacting server: $name\n";
962: }
963: if ($serverhomeID ne '') {
964: $output .= $name.':'.$serverhomeID."\n";
965: } else {
966: $output .= $name.':'.$name_to_host{$name}->[0]."\n";
967: }
968: }
969: }
970: }
971: if ($output) {
972: if (open(my $fh,">$perlvar{'lonTabDir'}/serverhomeIDs.tab")) {
973: print $fh $output;
974: close($fh);
975: &Apache::lonnet::load_serverhomeIDs();
976: }
977: }
978: return;
979: }
980:
981: sub write_checksums {
982: my $distro = &LONCAPA::distro();
983: if ($distro) {
984: print "Retrieving file version and checksumming.\n";
985: my $numchksums = 0;
986: my ($chksumsref,$versionsref) =
987: &LONCAPA::Checksumming::get_checksums($distro,$perlvar{'lonDaemons'},
988: $perlvar{'lonLib'},
989: $perlvar{'lonIncludes'},
990: $perlvar{'lonTabDir'});
991: if (ref($chksumsref) eq 'HASH') {
992: $numchksums = scalar(keys(%{$chksumsref}));
993: }
994: print "File version retrieved and checksumming completed for $numchksums files.\n";
995: } else {
996: print "File version retrieval and checksumming skipped - could not determine Linux distro.\n";
997: }
998: return;
999: }
1000:
1001: sub clean_nosslverify {
1002: my ($fh) = @_;
1003: my %unlinked;
1004: if (-d "$perlvar{'lonSockDir'}/nosslverify") {
1005: if (opendir(my $dh,"$perlvar{'lonSockDir'}/nosslverify")) {
1006: while (my $fname=readdir($dh)) {
1007: next if ($fname =~ /^\.+$/);
1008: if (unlink("/home/httpd/sockets/nosslverify/$fname")) {
1009: &log($fh,"Unlinking $fname<br />");
1010: $unlinked{$fname} = 1;
1011: }
1012: }
1013: closedir($dh);
1014: }
1015: }
1016: &log($fh,"<p>Removed ".scalar(keys(%unlinked))." nosslverify clients</p>");
1017: return %unlinked;
1018: }
1019: sub clean_lonc_childpids {
1020: my $childpiddir = "$perlvar{'lonDocRoot'}/lon-status/loncchld";
1021: if (-d $childpiddir) {
1022: if (opendir(my $dh,$childpiddir)) {
1023: while (my $fname=readdir($dh)) {
1024: next if ($fname =~ /^\.+$/);
1025: unlink("$childpiddir/$fname");
1026: }
1027: closedir($dh);
1028: }
1029: }
1030: }
1031:
1032: sub write_connection_config {
1033: my ($domconf,%connectssl,%changes);
1034: $domconf = &get_domain_config();
1035: if (ref($domconf) eq 'HASH') {
1036: if (ref($domconf->{'ssl'}) eq 'HASH') {
1037: foreach my $connect ('connto','connfrom') {
1038: if (ref($domconf->{'ssl'}->{$connect}) eq 'HASH') {
1039: my ($sslreq,$sslnoreq,$currsetting);
1040: my %contypes;
1041: foreach my $type ('dom','intdom','other') {
1042: $connectssl{$connect.'_'.$type} = $domconf->{'ssl'}->{$connect}->{$type};
1043: }
1044: }
1045: }
1046: }
1047: if (keys(%connectssl)) {
1048: my %currconf;
1049: if (open(my $fh,'<',"$perlvar{'lonTabDir'}/connectionrules.tab")) {
1050: while (my $line = <$fh>) {
1051: chomp($line);
1052: my ($name,$value) = split(/=/,$line);
1053: if ($value =~ /^(?:no|yes|req)$/) {
1054: if ($name =~ /^conn(to|from)_(dom|intdom|other)$/) {
1055: $currconf{$name} = $value;
1056: }
1057: }
1058: }
1059: close($fh);
1060: }
1061: if (open(my $fh,'>',"$perlvar{'lonTabDir'}/connectionrules.tab")) {
1062: my $count = 0;
1063: foreach my $key (sort(keys(%connectssl))) {
1064: print $fh "$key=$connectssl{$key}\n";
1065: if (exists($currconf{$key})) {
1066: unless ($currconf{$key} eq $connectssl{$key}) {
1067: $changes{$key} = 1;
1068: }
1069: } else {
1070: $changes{$key} = 1;
1071: }
1072: $count ++;
1073: }
1074: close($fh);
1075: print "Completed writing SSL options for lonc/lond for $count items.\n";
1076: }
1077: } else {
1078: print "Writing of SSL options skipped - no connection rules in domain configuration.\n";
1079: }
1080: } else {
1081: print "Retrieval of SSL options for lonc/lond skipped - no configuration data available for domain.\n";
1082: }
1083: return %changes;
1084: }
1085:
1086: sub get_domain_config {
1087: my ($dom,$primlibserv,$isprimary,$url,%confhash);
1088: $dom = $perlvar{'lonDefDomain'};
1089: $primlibserv = &Apache::lonnet::domain($dom,'primary');
1090: if ($primlibserv eq $perlvar{'lonHostID'}) {
1091: $isprimary = 1;
1092: } elsif ($primlibserv ne '') {
1093: my $protocol = $Apache::lonnet::protocol{$primlibserv};
1094: my $hostname = &Apache::lonnet::hostname($primlibserv);
1095: unless ($protocol eq 'https') {
1096: $protocol = 'http';
1097: }
1098: $url = $protocol.'://'.$hostname.'/cgi-bin/listdomconfig.pl';
1099: }
1100: if ($isprimary) {
1101: my $lonusersdir = $perlvar{'lonUsersDir'};
1102: my $fname = $lonusersdir.'/'.$dom.'/configuration.db';
1103: if (-e $fname) {
1104: my $dbref=&LONCAPA::locking_hash_tie($fname,&GDBM_READER());
1105: if (ref($dbref) eq 'HASH') {
1106: foreach my $key (sort(keys(%{$dbref}))) {
1107: my $value = $dbref->{$key};
1108: if ($value =~ s/^__FROZEN__//) {
1109: $value = thaw(&LONCAPA::unescape($value));
1110: } else {
1111: $value = &LONCAPA::unescape($value);
1112: }
1113: $confhash{$key} = $value;
1114: }
1115: &LONCAPA::locking_hash_untie($dbref);
1116: }
1117: }
1118: } else {
1119: if (open(PIPE,"wget --no-check-certificate '$url?primary=$primlibserv&format=raw' |")) {
1120: my $config = '';
1121: while (<PIPE>) {
1122: $config .= $_;
1123: }
1124: close(PIPE);
1125: if ($config) {
1126: my @pairs=split(/\&/,$config);
1127: foreach my $item (@pairs) {
1128: my ($key,$value)=split(/=/,$item,2);
1129: my $what = &LONCAPA::unescape($key);
1130: if ($value =~ s/^__FROZEN__//) {
1131: $value = thaw(&LONCAPA::unescape($value));
1132: } else {
1133: $value = &LONCAPA::unescape($value);
1134: }
1135: $confhash{$what}=$value;
1136: }
1137: }
1138: }
1139: }
1140: return \%confhash;
1141: }
1142:
1143: sub write_hosttypes {
1144: my %intdom = &Apache::lonnet::all_host_intdom();
1145: my %hostdom = &Apache::lonnet::all_host_domain();
1146: my $dom = $hostdom{$perlvar{'lonHostID'}};
1147: my $internetdom = $intdom{$perlvar{'lonHostID'}};
1148: my %changes;
1149: if (($dom ne '') && ($internetdom ne '')) {
1150: if (keys(%hostdom)) {
1151: my %currhosttypes;
1152: if (open(my $fh,'<',"$perlvar{'lonTabDir'}/hosttypes.tab")) {
1153: while (my $line = <$fh>) {
1154: chomp($line);
1155: my ($name,$value) = split(/:/,$line);
1156: if (($name ne '') && ($value =~ /^(dom|intdom|other)$/)) {
1157: $currhosttypes{$name} = $value;
1158: }
1159: }
1160: close($fh);
1161: }
1162: if (open(my $fh,'>',"$perlvar{'lonTabDir'}/hosttypes.tab")) {
1163: my $count = 0;
1164: foreach my $lonid (sort(keys(%hostdom))) {
1165: my $type = 'other';
1166: if ($hostdom{$lonid} eq $dom) {
1167: $type = 'dom';
1168: } elsif ($intdom{$lonid} eq $internetdom) {
1169: $type = 'intdom';
1170: }
1171: print $fh "$lonid:$type\n";
1172: if (exists($currhosttypes{$lonid})) {
1173: if ($type ne $currhosttypes{$lonid}) {
1174: $changes{$lonid} = 1;
1175: }
1176: } else {
1177: $changes{$lonid} = 1;
1178: }
1179: $count ++;
1180: }
1181: close($fh);
1182: print "Completed writing host type data for $count hosts.\n";
1183: }
1184: } else {
1185: print "Writing of host types skipped - no hosts found.\n";
1186: }
1187: } else {
1188: print "Writing of host types skipped - could not determine this host's LON-CAPA domain or 'internet' domain.\n";
1189: }
1190: return %changes;
1191: }
1192:
1193: sub update_revocation_list {
1194: my ($result,$changed) = &Apache::lonnet::fetch_crl_pemfile();
1195: if ($result eq 'ok') {
1196: print "Certificate Revocation List (from CA) updated.\n";
1197: } else {
1198: print "Certificate Revocation List from (CA) not updated.\n";
1199: }
1200: return $changed;
1201: }
1202:
1203: sub reset_nosslverify_pids {
1204: my ($fh,%sslrem) = @_;
1205: &checkon_daemon($fh,'lond',40000,'USR2');
1206: my $loncpidfile="$perlvar{'lonDaemons'}/logs/lonc.pid";
1207: my $loncppid;
1208: if ((-e $loncpidfile) && (open(my $pfh,'<',$loncpidfile))) {
1209: $loncppid=<$pfh>;
1210: chomp($loncppid);
1211: close($pfh);
1212: if ($loncppid =~ /^\d+$/) {
1213: my %pids_by_host;
1214: my $docdir = $perlvar{'lonDocRoot'};
1215: if (-d "$docdir/lon-status/loncchld") {
1216: if (opendir(my $dh,"$docdir/lon-status/loncchld")) {
1217: while (my $file = readdir($dh)) {
1218: next if ($file =~ /^\./);
1219: if (open(my $fh,'<',"$docdir/lon-status/loncchld/$file")) {
1220: my $record = <$fh>;
1221: chomp($record);
1222: close($fh);
1223: my ($remotehost,$authmode) = split(/:/,$record);
1224: $pids_by_host{$remotehost}{$authmode}{$file} = 1;
1225: }
1226: }
1227: closedir($dh);
1228: if (keys(%pids_by_host)) {
1229: foreach my $host (keys(%pids_by_host)) {
1230: if ($sslrem{$host}) {
1231: if (ref($pids_by_host{$host}) eq 'HASH') {
1232: if (ref($pids_by_host{$host}{'insecure'}) eq 'HASH') {
1233: if (keys(%{$pids_by_host{$host}{'insecure'}})) {
1234: foreach my $pid (keys(%{$pids_by_host{$host}{'insecure'}})) {
1235: if (open(PIPE,"ps -o ppid= -p $pid |")) {
1236: my $ppid = <PIPE>;
1237: chomp($ppid);
1238: close(PIPE);
1239: $ppid =~ s/(^\s+|\s+$)//g;
1240: if (($ppid == $loncppid) && (kill 0 => $pid)) {
1241: kill QUIT => $pid;
1242: }
1243: }
1244: }
1245: }
1246: }
1247: }
1248: }
1249: }
1250: }
1251: }
1252: }
1253: }
1254: }
1255: return;
1256: }
1257:
1258: sub get_permcount_settings {
1259: my ($domconf) = @_;
1260: my ($defaults,$names) = &Apache::loncommon::lon_status_items();
1261: my (%weights,$threshold,$sysmail,$reportstatus,%exclusions);
1262: foreach my $type ('E','W','N','U') {
1263: $weights{$type} = $defaults->{$type};
1264: }
1265: $threshold = $defaults->{'threshold'};
1266: $sysmail = $defaults->{'sysmail'};
1267: $reportstatus = 1;
1268: if (ref($domconf) eq 'HASH') {
1269: if (ref($domconf->{'contacts'}) eq 'HASH') {
1270: if ($domconf->{'contacts'}{'reportstatus'} == 0) {
1271: $reportstatus = 0;
1272: }
1273: if (ref($domconf->{'contacts'}{'lonstatus'}) eq 'HASH') {
1274: if (ref($domconf->{'contacts'}{'lonstatus'}{weights}) eq 'HASH') {
1275: foreach my $type ('E','W','N','U') {
1276: if (exists($domconf->{'contacts'}{'lonstatus'}{weights}{$type})) {
1277: $weights{$type} = $domconf->{'contacts'}{'lonstatus'}{weights}{$type};
1278: }
1279: }
1280: }
1281: if (ref($domconf->{'contacts'}{'lonstatus'}{'excluded'}) eq 'ARRAY') {
1282: my @excluded = @{$domconf->{'contacts'}{'lonstatus'}{'excluded'}};
1283: if (@excluded) {
1284: map { $exclusions{$_} = 1; } @excluded;
1285: }
1286: }
1287: if (exists($domconf->{'contacts'}{'lonstatus'}{'threshold'})) {
1288: $threshold = $domconf->{'contacts'}{'lonstatus'}{'threshold'};
1289: }
1290: if (exists($domconf->{'contacts'}{'lonstatus'}{'sysmail'})) {
1291: $sysmail = $domconf->{'contacts'}{'lonstatus'}{'sysmail'};
1292: }
1293: }
1294: }
1295: }
1296: return ($threshold,$sysmail,$reportstatus,\%weights,\%exclusions);
1297: }
1298:
1299: sub read_serverhomeIDs {
1300: my %server;
1301: if (-e "$perlvar{'lonTabDir'}/serverhomeIDs.tab") {
1302: if (open(my $fh,'<',"$perlvar{'lonTabDir'}/serverhomeIDs.tab")) {
1303: while (<$fh>) {
1304: my($host,$id) = split(/:/);
1305: chomp($id);
1306: $server{$host} = $id;
1307: }
1308: close($fh);
1309: }
1310: }
1311: return %server;
1312: }
1313:
1314: sub send_mail {
1315: my ($sysmail,$reportstatus) = @_;
1316: my $defdom = $perlvar{'lonDefDomain'};
1317: my $origmail = $perlvar{'lonAdmEMail'};
1318: my $emailto = &Apache::loncommon::build_recipient_list(undef,
1319: 'lonstatusmail',$defdom,$origmail);
1320: if (($totalcount>$sysmail) && ($reportstatus)) {
1321: $emailto.=",$perlvar{'lonSysEMail'}";
1322: }
1323: my $from;
1324: my $hostname=`/bin/hostname`;
1325: chop($hostname);
1326: $hostname=~s/[^\w\.]//g;
1327: if ($hostname) {
1328: $from = 'www@'.$hostname;
1329: }
1330: my $subj="LON: $perlvar{'lonHostID'} E:$errors W:$warnings N:$notices";
1331: my $loncronmail = "To: $emailto\n".
1332: "From: $from\n".
1333: "Subject: ".$subj."\n".
1334: "Content-type: text/html\; charset=UTF-8\n".
1335: "MIME-Version: 1.0\n\n";
1336: if (open(my $fh,"<$statusdir/index.html")) {
1337: while (<$fh>) {
1338: $loncronmail .= $_;
1339: }
1340: close($fh);
1341: } else {
1342: $loncronmail .= "Failed to read from http://$hostname/lon-status/index.html\n";
1343: }
1344: $loncronmail .= "\n\n";
1345: if (open(my $mailh, "|/usr/lib/sendmail -oi -t -odb")) {
1346: print $mailh $loncronmail;
1347: close($mailh);
1348: print "Sending mail.\n";
1349: } else {
1350: print "Sending mail failed.\n";
1351: }
1352: }
1353:
1354: sub usage {
1355: print(<<USAGE);
1356: loncron - housekeeping program that checks up on various parts of LON-CAPA
1357:
1358: Options:
1359: --help Display
1360: --noemail Do not send the status email
1361: --justcheckconnections Only check the current status of the lonc/d
1362: connections, do not send emails do not
1363: check if the daemons are running, do not
1364: generate lon-status
1365: --justcheckdaemons Only check that all of the Lon-CAPA daemons are
1366: running, do not send emails do not
1367: check the lonc/d connections, do not
1368: generate lon-status
1369: --justreload Only tell the daemons to reload the config files,
1370: do not send emails do not
1371: check if the daemons are running, do not
1372: generate lon-status
1373:
1374: USAGE
1375: }
1376:
1377: # ================================================================ Main Program
1378: sub main () {
1379: my ($help,$justcheckdaemons,$noemail,$justcheckconnections,
1380: $justreload);
1381: &GetOptions("help" => \$help,
1382: "justcheckdaemons" => \$justcheckdaemons,
1383: "noemail" => \$noemail,
1384: "justcheckconnections" => \$justcheckconnections,
1385: "justreload" => \$justreload
1386: );
1387: if ($help) { &usage(); return; }
1388: # --------------------------------- Read loncapa_apache.conf and loncapa.conf
1389: my $perlvarref=LONCAPA::Configuration::read_conf('loncapa.conf');
1390: %perlvar=%{$perlvarref};
1391: undef $perlvarref;
1392: delete $perlvar{'lonReceipt'}; # remove since sensitive and not needed
1393: delete $perlvar{'lonSqlAccess'}; # remove since sensitive and not needed
1394: chdir($perlvar{'lonDaemons'});
1395: # --------------------------------------- Make sure that LON-CAPA is configured
1396: # I only test for one thing here (lonHostID). This is just a safeguard.
1397: if ('{[[[[lonHostID]]]]}' eq $perlvar{'lonHostID'}) {
1398: print("Unconfigured machine.\n");
1399: my $emailto=$perlvar{'lonSysEMail'};
1400: my $hostname=`/bin/hostname`;
1401: chop $hostname;
1402: $hostname=~s/[^\w\.]//g; # make sure is safe to pass through shell
1403: my $subj="LON: Unconfigured machine $hostname";
1404: system("echo 'Unconfigured machine $hostname.' |".
1405: " mail -s '$subj' $emailto > /dev/null");
1406: exit 1;
1407: }
1408:
1409: # ----------------------------- Make sure this process is running from user=www
1410: my $wwwid=getpwnam('www');
1411: if ($wwwid!=$<) {
1412: print("User ID mismatch. This program must be run as user 'www'.\n");
1413: my $emailto="$perlvar{'lonAdmEMail'},$perlvar{'lonSysEMail'}";
1414: my $subj="LON: $perlvar{'lonHostID'} User ID mismatch";
1415: system("echo 'User ID mismatch. loncron must be run as user www.' |".
1416: " mail -s '$subj' $emailto > /dev/null");
1417: exit 1;
1418: }
1419:
1420: # -------------------------------------------- Force reload of host information
1421: my $nomemcache;
1422: if ($justcheckdaemons) {
1423: $nomemcache=1;
1424: my $memcachepidfile="$perlvar{'lonDaemons'}/logs/memcached.pid";
1425: my $memcachepid;
1426: if (-e $memcachepidfile) {
1427: my $memfh=IO::File->new($memcachepidfile);
1428: $memcachepid=<$memfh>;
1429: chomp($memcachepid);
1430: if ($memcachepid =~ /^\d+$/ && kill 0 => $memcachepid) {
1431: undef($nomemcache);
1432: }
1433: }
1434: }
1435: &Apache::lonnet::load_hosts_tab(1,$nomemcache);
1436: &Apache::lonnet::load_domain_tab(1,$nomemcache);
1437: &Apache::lonnet::get_iphost(1,$nomemcache);
1438:
1439: # ----------------------------------------- Force firewall update for lond port
1440:
1441: if ((!$justcheckdaemons) && (!$justreload)) {
1442: my $now = time;
1443: my $tmpfile = $perlvar{'lonDaemons'}.'/tmp/lciptables_iphost_'.
1444: $now.$$.int(rand(10000));
1445: if (open(my $fh,">$tmpfile")) {
1446: my %iphosts = &Apache::lonnet::get_iphost();
1447: foreach my $key (keys(%iphosts)) {
1448: print $fh "$key\n";
1449: }
1450: close($fh);
1451: if (&LONCAPA::try_to_lock('/tmp/lock_lciptables')) {
1452: my $execpath = $perlvar{'lonDaemons'}.'/lciptables';
1453: system("$execpath $tmpfile");
1454: unlink('/tmp/lock_lciptables'); # Remove the lock file.
1455: }
1456: unlink($tmpfile);
1457: }
1458: }
1459:
1460: # ---------------------------------------------------------------- Start report
1461:
1462: $errors=0;
1463: $warnings=0;
1464: $notices=0;
1465:
1466:
1467: my $fh;
1468: if (!$justcheckdaemons && !$justcheckconnections && !$justreload) {
1469: $fh=&start_logging();
1470:
1471: &log_machine_info($fh);
1472: &clean_tmp($fh);
1473: &clean_lonIDs($fh);
1474: &clean_webDAV_sessionIDs($fh);
1475: &check_httpd_logs($fh);
1476: &rotate_lonnet_logs($fh);
1477: &rotate_other_logs($fh);
1478: }
1479: if (!$justcheckconnections && !$justreload) {
1480: &checkon_daemon($fh,'lonmemcached',40000);
1481: &checkon_daemon($fh,'lonsql',200000);
1482: if ( &checkon_daemon($fh,'lond',40000,'USR1') eq 'running') {
1483: &checkon_daemon($fh,'lond',40000,'USR2');
1484: }
1485: &checkon_daemon($fh,'lonc',40000,'USR1');
1486: &checkon_daemon($fh,'lonmaxima',40000);
1487: &checkon_daemon($fh,'lonr',40000);
1488: }
1489: if ($justreload) {
1490: &clean_nosslverify($fh);
1491: &write_connection_config();
1492: &write_hosttypes();
1493: &update_revocation_list();
1494: &checkon_daemon($fh,'lond',40000,'USR2');
1495: &checkon_daemon($fh,'lonc',40000,'USR2');
1496: }
1497: if ($justcheckconnections) {
1498: &test_connections($fh);
1499: }
1500: if (!$justcheckdaemons && !$justcheckconnections && !$justreload) {
1501: my $domconf = &get_domain_config();
1502: my ($threshold,$sysmail,$reportstatus,$weightsref,$exclusionsref) =
1503: &get_permcount_settings($domconf);
1504: &check_delayed_msg($fh,$weightsref,$exclusionsref);
1505: &write_loncaparevs();
1506: &write_serverhomeIDs();
1507: &write_checksums();
1508: my %sslrem = &clean_nosslverify($fh);
1509: my %conchgs = &write_connection_config();
1510: my %hosttypechgs = &write_hosttypes();
1511: my $hadcrlchg = &update_revocation_list();
1512: if ((keys(%conchgs) > 0) || (keys(%hosttypechgs) > 0) ||
1513: $hadcrlchg || (keys(%sslrem) > 0)) {
1514: &checkon_daemon($fh,'lond',40000,'USR2');
1515: &reset_nosslverify_pids($fh,%sslrem);
1516: }
1517: &finish_logging($fh,$weightsref);
1518: &log_simplestatus();
1519: if ($totalcount>$threshold && !$noemail) { &send_mail($sysmail,$reportstatus); }
1520: }
1521: }
1522:
1523: &main();
1524: 1;
1525:
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