--- loncom/loncron 2003/10/14 15:36:21 1.44
+++ loncom/loncron 2009/04/22 09:41:21 1.80
@@ -1,324 +1,226 @@
#!/usr/bin/perl
-# The LearningOnline Network
-# Housekeeping program, started by cron
+# Housekeeping program, started by cron, loncontrol and loncron.pl
#
-# (TCP networking package
-# 6/1/99,6/2,6/10,6/11,6/12,6/14,6/26,6/28,6/29,6/30,
-# 7/1,7/2,7/9,7/10,7/12 Gerd Kortemeyer)
+# $Id: loncron,v 1.80 2009/04/22 09:41:21 www Exp $
+#
+# Copyright Michigan State University Board of Trustees
+#
+# This file is part of the LearningOnline Network with CAPA (LON-CAPA).
+#
+# LON-CAPA is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# LON-CAPA is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with LON-CAPA; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+#
+# /home/httpd/html/adm/gpl.txt
+#
+# http://www.lon-capa.org/
#
-# 7/14,7/15,7/19,7/21,7/22,11/18,
-# 2/8 Gerd Kortemeyer
-# 12/23 Gerd Kortemeyer
-# YEAR=2001
-# 09/04,09/06,11/26 Gerd Kortemeyer
$|=1;
+use strict;
use lib '/home/httpd/lib/perl/';
use LONCAPA::Configuration;
+use Apache::lonnet;
+use Apache::loncommon;
use IO::File;
use IO::Socket;
+use HTML::Entities;
+use Getopt::Long;
+#globals
+use vars qw (%perlvar %simplestatus $errors $warnings $notices $totalcount);
+
+my $statusdir="/home/httpd/html/lon-status";
-# -------------------------------------------------- Non-critical communication
-sub reply {
- my ($cmd,$server)=@_;
- my $peerfile="$perlvar{'lonSockDir'}/$server";
- my $client=IO::Socket::UNIX->new(Peer =>"$peerfile",
- Type => SOCK_STREAM,
- Timeout => 10)
- or return "con_lost";
- print $client "$cmd\n";
- my $answer=<$client>;
- chomp($answer);
- if (!$answer) { $answer="con_lost"; }
- return $answer;
-}
# --------------------------------------------------------- Output error status
+sub log {
+ my $fh=shift;
+ if ($fh) { print $fh @_ }
+}
+
sub errout {
my $fh=shift;
- print $fh (<<ENDERROUT);
- <p><table border=2 bgcolor="#CCCCCC">
+ &log($fh,(<<ENDERROUT));
+ <table border="2" bgcolor="#CCCCCC">
<tr><td>Notices</td><td>$notices</td></tr>
<tr><td>Warnings</td><td>$warnings</td></tr>
<tr><td>Errors</td><td>$errors</td></tr>
- </table><p><a href="#top">Top</a><p>
+ </table><p><a href="#top">Top</a></p>
ENDERROUT
}
+sub rotate_logfile {
+ my ($file,$fh,$description) = @_;
+ my $size=(stat($file))[7];
+ if ($size>40000) {
+ &log($fh,"<p>Rotating $description ...</p>");
+ rename("$file.2","$file.3");
+ rename("$file.1","$file.2");
+ rename("$file","$file.1");
+ }
+}
+
sub start_daemon {
- my ($fh,$daemon,$pidfile) = @_;
+ my ($fh,$daemon,$pidfile,$args) = @_;
my $progname=$daemon;
- if ($daemon eq 'lonc' && $ARGV[0] eq 'new') {
+ if ($daemon eq 'lonc') {
$progname='loncnew';
- print "new ";
}
- system("$perlvar{'lonDaemons'}/$progname 2>>$perlvar{'lonDaemons'}/logs/${daemon}_errors");
- sleep 2;
+ my $error_fname="$perlvar{'lonDaemons'}/logs/${daemon}_errors";
+ &rotate_logfile($error_fname,$fh,'error logs');
+ if ($daemon eq 'lonc') {
+ &clean_sockets($fh);
+ }
+ system("$perlvar{'lonDaemons'}/$progname 2>$perlvar{'lonDaemons'}/logs/${daemon}_errors");
+ sleep 1;
if (-e $pidfile) {
- print $fh "Seems like it started ...<p>";
+ &log($fh,"<p>Seems like it started ...</p>");
my $lfh=IO::File->new("$pidfile");
my $daemonpid=<$lfh>;
chomp($daemonpid);
- sleep 2;
- if (kill 0 => $daemonpid) {
+ if ($daemonpid =~ /^\d+$/ && kill 0 => $daemonpid) {
return 1;
} else {
return 0;
}
}
- print $fh "Seems like that did not work!<p>";
+ &log($fh,"<p>Seems like that did not work!</p>");
$errors++;
return 0;
}
sub checkon_daemon {
- my ($fh,$daemon,$maxsize,$sendusr1)=@_;
+ my ($fh,$daemon,$maxsize,$send,$args)=@_;
- print $fh '<hr><a name="'.$daemon.'"><h2>'.$daemon.'</h2><h3>Log</h3><pre>';
- printf("%-10s ",$daemon);
+ my $result;
+ &log($fh,'<hr /><a name="'.$daemon.'" /><h2>'.$daemon.'</h2><h3>Log</h3><p style="white-space: pre;"><tt>');
+ printf("%-15s ",$daemon);
if (-e "$perlvar{'lonDaemons'}/logs/$daemon.log"){
open (DFH,"tail -n25 $perlvar{'lonDaemons'}/logs/$daemon.log|");
- while ($line=<DFH>) {
- print $fh "$line";
+ while (my $line=<DFH>) {
+ &log($fh,"$line");
if ($line=~/INFO/) { $notices++; }
if ($line=~/WARNING/) { $notices++; }
if ($line=~/CRITICAL/) { $warnings++; }
};
close (DFH);
}
- print $fh "</pre>";
+ &log($fh,"</tt></p>");
my $pidfile="$perlvar{'lonDaemons'}/logs/$daemon.pid";
my $restartflag=1;
-
+ my $daemonpid;
if (-e $pidfile) {
my $lfh=IO::File->new("$pidfile");
- my $daemonpid=<$lfh>;
+ $daemonpid=<$lfh>;
chomp($daemonpid);
- if (kill 0 => $daemonpid) {
- print $fh "<h3>$daemon at pid $daemonpid responding";
- if ($sendusr1) { print $fh ", sending USR1"; }
- print $fh "</h3>";
- if ($sendusr1) { kill USR1 => $daemonpid; }
+ if ($daemonpid =~ /^\d+$/ && kill 0 => $daemonpid) {
+ &log($fh,"<h3>$daemon at pid $daemonpid responding");
+ if ($send) { &log($fh,", sending $send"); }
+ &log($fh,"</h3>");
+ if ($send eq 'USR1') { kill USR1 => $daemonpid; }
+ if ($send eq 'USR2') { kill USR2 => $daemonpid; }
$restartflag=0;
- print "running\n";
+ if ($send eq 'USR2') {
+ $result = 'reloaded';
+ print "reloaded\n";
+ } else {
+ $result = 'running';
+ print "running\n";
+ }
} else {
$errors++;
- print $fh "<h3>$daemon at pid $daemonpid not responding</h3>";
+ &log($fh,"<h3>$daemon at pid $daemonpid not responding</h3>");
$restartflag=1;
- print $fh "<h3>Decided to clean up stale .pid file and restart $daemon</h3>";
+ &log($fh,"<h3>Decided to clean up stale .pid file and restart $daemon</h3>");
}
}
if ($restartflag==1) {
$simplestatus{$daemon}='off';
$errors++;
- print $fh '<br><font color="red">Killall '.$daemon.': '.
- `killall $daemon 2>&1`.' - ';
- sleep 2;
- print $fh unlink($pidfile).' - '.
- `killall -9 $daemon 2>&1`.
- '</font><br>';
- print $fh "<h3>$daemon not running, trying to start</h3>";
+ my $kadaemon=$daemon;
+ if ($kadaemon eq 'lonmemcached') { $kadaemon='memcached'; }
+ &log($fh,'<br><font color="red">Killall '.$daemon.': '.
+ `killall $kadaemon 2>&1`.' - ');
+ sleep 1;
+ &log($fh,unlink($pidfile).' - '.
+ `killall -9 $kadaemon 2>&1`.
+ '</font><br>');
+ &log($fh,"<h3>$daemon not running, trying to start</h3>");
- if (&start_daemon($fh,$daemon,$pidfile)) {
- print $fh "<h3>$daemon at pid $daemonpid responding</h3>";
+ if (&start_daemon($fh,$daemon,$pidfile,$args)) {
+ &log($fh,"<h3>$daemon at pid $daemonpid responding</h3>");
$simplestatus{$daemon}='restarted';
+ $result = 'started';
print "started\n";
} else {
$errors++;
- print $fh "<h3>$daemon at pid $daemonpid not responding</h3>";
- print $fh "Give it one more try ...<p>";
+ &log($fh,"<h3>$daemon at pid $daemonpid not responding</h3>");
+ &log($fh,"<p>Give it one more try ...</p>");
print " ";
- if (&start_daemon($fh,$daemon,$pidfile)) {
- print $fh "<h3>$daemon at pid $daemonpid responding</h3>";
+ if (&start_daemon($fh,$daemon,$pidfile,$args)) {
+ &log($fh,"<h3>$daemon at pid $daemonpid responding</h3>");
$simplestatus{$daemon}='restarted';
+ $result = 'started';
print "started\n";
} else {
+ $result = 'failed';
print " failed\n";
$simplestatus{$daemon}='failed';
$errors++; $errors++;
- print $fh "<h3>$daemon at pid $daemonpid not responding</h3>";
- print $fh "Unable to start $daemon<p>";
+ &log($fh,"<h3>$daemon at pid $daemonpid not responding</h3>");
+ &log($fh,"<p>Unable to start $daemon</p>");
}
}
if (-e "$perlvar{'lonDaemons'}/logs/$daemon.log"){
- print $fh "<p><pre>";
+ &log($fh,"<p><pre>");
open (DFH,"tail -n100 $perlvar{'lonDaemons'}/logs/$daemon.log|");
- while ($line=<DFH>) {
- print $fh "$line";
+ while (my $line=<DFH>) {
+ &log($fh,"$line");
if ($line=~/WARNING/) { $notices++; }
if ($line=~/CRITICAL/) { $notices++; }
};
close (DFH);
- print $fh "</pre>";
+ &log($fh,"</pre></p>");
}
}
- $fname="$perlvar{'lonDaemons'}/logs/$daemon.log";
-
- my ($dev,$ino,$mode,$nlink,
- $uid,$gid,$rdev,$size,
- $atime,$mtime,$ctime,
- $blksize,$blocks)=stat($fname);
-
- if ($size>$maxsize) {
- print $fh "Rotating logs ...<p>";
- rename("$fname.2","$fname.3");
- rename("$fname.1","$fname.2");
- rename("$fname","$fname.1");
- }
+ my $fname="$perlvar{'lonDaemons'}/logs/$daemon.log";
+ &rotate_logfile($fname,$fh,'logs');
&errout($fh);
+ return $result;
}
-# ================================================================ Main Program
-
-# --------------------------------- Read loncapa_apache.conf and loncapa.conf
-my $perlvarref=LONCAPA::Configuration::read_conf('loncapa.conf');
-%perlvar=%{$perlvarref};
-undef $perlvarref;
-delete $perlvar{'lonReceipt'}; # remove since sensitive and not needed
-delete $perlvar{'lonSqlAccess'}; # remove since sensitive and not needed
-
-# --------------------------------------- Make sure that LON-CAPA is configured
-# I only test for one thing here (lonHostID). This is just a safeguard.
-if ('{[[[[lonHostID]]]]}' eq $perlvar{'lonHostID'}) {
- print("Unconfigured machine.\n");
- $emailto=$perlvar{'lonSysEMail'};
- $hostname=`/bin/hostname`;
- chop $hostname;
- $hostname=~s/[^\w\.]//g; # make sure is safe to pass through shell
- $subj="LON: Unconfigured machine $hostname";
- system("echo 'Unconfigured machine $hostname.' |\
- mailto $emailto -s '$subj' > /dev/null");
- exit 1;
-}
-
-# ----------------------------- Make sure this process is running from user=www
-my $wwwid=getpwnam('www');
-if ($wwwid!=$<) {
- print("User ID mismatch. This program must be run as user 'www'\n");
- $emailto="$perlvar{'lonAdmEMail'},$perlvar{'lonSysEMail'}";
- $subj="LON: $perlvar{'lonHostID'} User ID mismatch";
- system("echo 'User ID mismatch. loncron must be run as user www.' |\
- mailto $emailto -s '$subj' > /dev/null");
- exit 1;
-}
-
-# ------------------------------------------------------------- Read hosts file
-{
- my $config=IO::File->new("$perlvar{'lonTabDir'}/hosts.tab");
-
- while (my $configline=<$config>) {
- my ($id,$domain,$role,$name,$ip,$domdescr)=split(/:/,$configline);
- if ($id && $domain && $role && $name && $ip) {
- $hostname{$id}=$name;
- $hostdom{$id}=$domain;
- $hostip{$id}=$ip;
- $hostrole{$id}=$role;
- if ($domdescr) { $domaindescription{$domain}=$domdescr; }
- if (($role eq 'library') && ($id ne $perlvar{'lonHostID'})) {
- $libserv{$id}=$name;
- }
- } else {
- if ($configline) {
-# &logthis("Skipping hosts.tab line -$configline-");
- }
- }
- }
-}
-
-# ------------------------------------------------------ Read spare server file
-{
- my $config=IO::File->new("$perlvar{'lonTabDir'}/spare.tab");
-
- while (my $configline=<$config>) {
- chomp($configline);
- if (($configline) && ($configline ne $perlvar{'lonHostID'})) {
- $spareid{$configline}=1;
- }
- }
-}
-
-# ---------------------------------------------------------------- Start report
-
-$statusdir="/home/httpd/html/lon-status";
-
-$errors=0;
-$warnings=0;
-$notices=0;
-
-$now=time;
-$date=localtime($now);
-
-{
- my $fh=IO::File->new(">$statusdir/newstatus.html");
- my %simplestatus=();
-
- print $fh (<<ENDHEADERS);
-<html>
-<head>
-<title>LON Status Report $perlvar{'lonHostID'}</title>
-</head>
-<body bgcolor="#AAAAAA">
-<a name="top">
-<h1>LON Status Report $perlvar{'lonHostID'}</h1>
-<h2>$date ($now)</h2>
-<ol>
-<li><a href="#configuration">Configuration</a>
-<li><a href="#machine">Machine Information</a>
-<li><a href="#tmp">Temporary Files</a>
-<li><a href="#tokens">Session Tokens</a>
-<li><a href="#httpd">httpd</a>
-<li><a href="#lonsql">lonsql</a>
-<li><a href="#lond">lond</a>
-<li><a href="#lonc">lonc</a>
-<li><a href="#lonhttpd">lonhttpd</a>
-<li><a href="#lonnet">lonnet</a>
-<li><a href="#connections">Connections</a>
-<li><a href="#delayed">Delayed Messages</a>
-<li><a href="#errcount">Error Count</a>
-</ol>
-<hr>
-<a name="configuration">
-<h2>Configuration</h2>
-<h3>PerlVars</h3>
-<table border=2>
-ENDHEADERS
-
- foreach $varname (sort(keys(%perlvar))) {
- print $fh "<tr><td>$varname</td><td>$perlvar{$varname}</td></tr>\n";
- }
- print $fh "</table><h3>Hosts</h3><table border=2>";
- foreach $id (sort(keys(%hostname))) {
- print $fh
- "<tr><td>$id</td><td>$hostdom{$id}</td><td>$hostrole{$id}</td>";
- print $fh "<td>$hostname{$id}</td><td>$hostip{$id}</td></tr>\n";
- }
- print $fh "</table><h3>Spare Hosts</h3><ol>";
- foreach $id (sort(keys(%spareid))) {
- print $fh "<li>$id\n";
- }
-
- print $fh "</ol>\n";
# --------------------------------------------------------------------- Machine
-
- print $fh '<hr><a name="machine"><h2>Machine Information</h2>';
- print $fh "<h3>loadavg</h3>";
-
+sub log_machine_info {
+ my ($fh)=@_;
+ &log($fh,'<hr /><a name="machine" /><h2>Machine Information</h2>');
+ &log($fh,"<h3>loadavg</h3>");
+
open (LOADAVGH,"/proc/loadavg");
- $loadavg=<LOADAVGH>;
+ my $loadavg=<LOADAVGH>;
close (LOADAVGH);
- print $fh "<tt>$loadavg</tt>";
+ &log($fh,"<tt>$loadavg</tt>");
- @parts=split(/\s+/,$loadavg);
+ my @parts=split(/\s+/,$loadavg);
if ($parts[1]>4.0) {
$errors++;
} elsif ($parts[1]>2.0) {
@@ -327,14 +229,14 @@ ENDHEADERS
$notices++;
}
- print $fh "<h3>df</h3>";
- print $fh "<pre>";
+ &log($fh,"<h3>df</h3>");
+ &log($fh,"<pre>");
open (DFH,"df|");
- while ($line=<DFH>) {
- print $fh "$line";
+ while (my $line=<DFH>) {
+ &log($fh,&encode_entities($line,'<>&"'));
@parts=split(/\s+/,$line);
- $usage=$parts[4];
+ my $usage=$parts[4];
$usage=~s/\W//g;
if ($usage>90) {
$warnings++;
@@ -347,39 +249,115 @@ ENDHEADERS
if ($usage>95) { $warnings++; $warnings++; $simplestatus{'diskfull'}++; }
}
close (DFH);
- print $fh "</pre>";
+ &log($fh,"</pre>");
- print $fh "<h3>ps</h3>";
- print $fh "<pre>";
- $psproc=0;
+ &log($fh,"<h3>ps</h3>");
+ &log($fh,"<pre>");
+ my $psproc=0;
- open (PSH,"ps -aux|");
- while ($line=<PSH>) {
- print $fh "$line";
+ open (PSH,"ps aux --cols 140 |");
+ while (my $line=<PSH>) {
+ &log($fh,&encode_entities($line,'<>&"'));
$psproc++;
}
close (PSH);
- print $fh "</pre>";
+ &log($fh,"</pre>");
if ($psproc>200) { $notices++; }
if ($psproc>250) { $notices++; }
+ &log($fh,"<h3>distprobe</h3>");
+ &log($fh,"<pre>");
+ open(DSH,"$perlvar{'lonDaemons'}/distprobe |");
+ while (my $line=<DSH>) {
+ &log($fh,&encode_entities($line,'<>&"'));
+ $psproc++;
+ }
+ close(DSH);
+ &log($fh,"</pre>");
+
&errout($fh);
+}
+
+sub start_logging {
+ my $fh=IO::File->new(">$statusdir/newstatus.html");
+ my %simplestatus=();
+ my $now=time;
+ my $date=localtime($now);
+
+
+ &log($fh,(<<ENDHEADERS));
+<html>
+<head>
+<title>LON Status Report $perlvar{'lonHostID'}</title>
+</head>
+<body bgcolor="#AAAAAA">
+<a name="top" />
+<h1>LON Status Report $perlvar{'lonHostID'}</h1>
+<h2>$date ($now)</h2>
+<ol>
+<li><a href="#configuration">Configuration</a></li>
+<li><a href="#machine">Machine Information</a></li>
+<li><a href="#tmp">Temporary Files</a></li>
+<li><a href="#tokens">Session Tokens</a></li>
+<li><a href="#httpd">httpd</a></li>
+<li><a href="#lonsql">lonsql</a></li>
+<li><a href="#lond">lond</a></li>
+<li><a href="#lonc">lonc</a></li>
+<li><a href="#lonnet">lonnet</a></li>
+<li><a href="#connections">Connections</a></li>
+<li><a href="#delayed">Delayed Messages</a></li>
+<li><a href="#errcount">Error Count</a></li>
+</ol>
+<hr />
+<a name="configuration" />
+<h2>Configuration</h2>
+<h3>PerlVars</h3>
+<table border="2">
+ENDHEADERS
+
+ foreach my $varname (sort(keys(%perlvar))) {
+ &log($fh,"<tr><td>$varname</td><td>".
+ &encode_entities($perlvar{$varname},'<>&"')."</td></tr>\n");
+ }
+ &log($fh,"</table><h3>Hosts</h3><table border='2'>");
+ my %hostname = &Apache::lonnet::all_hostnames();
+ foreach my $id (sort(keys(%hostname))) {
+ my $role = (&Apache::lonnet::is_library($id) ? 'library'
+ : 'access');
+ &log($fh,
+ "<tr><td>$id</td><td>".&Apache::lonnet::host_domain($id).
+ "</td><td>".$role.
+ "</td><td>".&Apache::lonnet::hostname($id)."</td></tr>\n");
+ }
+ &log($fh,"</table><h3>Spare Hosts</h3><ul>");
+ foreach my $type (sort(keys(%Apache::lonnet::spareid))) {
+ &log($fh,"<li>$type\n<ol>");
+ foreach my $id (@{ $Apache::lonnet::spareid{$type} }) {
+ &log($fh,"<li>$id</li>\n");
+ }
+ &log($fh,"</ol>\n</li>\n");
+ }
+ &log($fh,"</ul>\n");
+ return $fh;
+}
# --------------------------------------------------------------- clean out tmp
- print $fh '<hr><a name="tmp"><h2>Temporary Files</h2>';
- $cleaned=0;
- $old=0;
- while ($fname=<$perlvar{'lonDaemons'}/tmp/*>) {
+sub clean_tmp {
+ my ($fh)=@_;
+ &log($fh,'<hr /><a name="tmp" /><h2>Temporary Files</h2>');
+ my $cleaned=0;
+ my $old=0;
+ while (my $fname=<$perlvar{'lonDaemons'}/tmp/*>) {
my ($dev,$ino,$mode,$nlink,
$uid,$gid,$rdev,$size,
$atime,$mtime,$ctime,
$blksize,$blocks)=stat($fname);
- $now=time;
- $since=$now-$mtime;
+ my $now=time;
+ my $since=$now-$mtime;
if ($since>$perlvar{'lonExpire'}) {
- $line='';
+ my $line='';
if (open(PROBE,$fname)) {
$line=<PROBE>;
close(PROBE);
@@ -394,179 +372,212 @@ ENDHEADERS
} else { $old++; }
}
}
-
}
- print $fh "Cleaned up ".$cleaned." files (".$old." old checkout tokens).";
+ &log($fh,"Cleaned up ".$cleaned." files (".$old." old checkout tokens).");
+}
# ------------------------------------------------------------ clean out lonIDs
- print $fh '<hr><a name="tokens"><h2>Session Tokens</h2>';
- $cleaned=0;
- $active=0;
- while ($fname=<$perlvar{'lonIDsDir'}/*>) {
+sub clean_lonIDs {
+ my ($fh)=@_;
+ &log($fh,'<hr /><a name="tokens" /><h2>Session Tokens</h2>');
+ my $cleaned=0;
+ my $active=0;
+ while (my $fname=<$perlvar{'lonIDsDir'}/*>) {
my ($dev,$ino,$mode,$nlink,
$uid,$gid,$rdev,$size,
$atime,$mtime,$ctime,
$blksize,$blocks)=stat($fname);
- $now=time;
- $since=$now-$mtime;
+ my $now=time;
+ my $since=$now-$mtime;
if ($since>$perlvar{'lonExpire'}) {
$cleaned++;
- print $fh "Unlinking $fname<br>";
+ &log($fh,"Unlinking $fname<br>");
unlink("$fname");
} else {
$active++;
}
+ }
+ &log($fh,"<p>Cleaned up ".$cleaned." stale session token(s).</p>");
+ &log($fh,"<h3>$active open session(s)</h3>");
+}
+# ----------------------------------------------------------- clean out sockets
+sub clean_sockets {
+ my ($fh)=@_;
+ my $cleaned=0;
+ opendir(SOCKETS,$perlvar{'lonSockDir'});
+ while (my $fname=readdir(SOCKETS)) {
+ next if (-d $fname
+ || $fname=~/(mysqlsock|maximasock|rsock|\Q$perlvar{'lonSockDir'}\E)/);
+ $cleaned++;
+ &log($fh,"Unlinking $fname<br />");
+ unlink("/home/httpd/sockets/$fname");
}
- print $fh "<p>Cleaned up ".$cleaned." stale session token(s).";
- print $fh "<h3>$active open session(s)</h3>";
+ &log($fh,"<p>Cleaned up ".$cleaned." stale sockets.</p>");
+}
-# ----------------------------------------------------------------------- httpd
- print $fh '<hr><a name="httpd"><h2>httpd</h2><h3>Access Log</h3><pre>';
+# ----------------------------------------------------------------------- httpd
+sub check_httpd_logs {
+ my ($fh)=@_;
+ &log($fh,'<hr /><a name="httpd" /><h2>httpd</h2><h3>Access Log</h3><pre>');
open (DFH,"tail -n25 /etc/httpd/logs/access_log|");
- while ($line=<DFH>) { print $fh "$line" };
+ while (my $line=<DFH>) { &log($fh,&encode_entities($line,'<>&"')) };
close (DFH);
-
- print $fh "</pre><h3>Error Log</h3><pre>";
-
+
+ &log($fh,"</pre><h3>Error Log</h3><pre>");
+
open (DFH,"tail -n25 /etc/httpd/logs/error_log|");
- while ($line=<DFH>) {
- print $fh "$line";
+ while (my $line=<DFH>) {
+ &log($fh,"$line");
if ($line=~/\[error\]/) { $notices++; }
- };
+ }
close (DFH);
- print $fh "</pre>";
+ &log($fh,"</pre>");
&errout($fh);
-
-
-# ---------------------------------------------------------------------- lonsql
-
- &checkon_daemon($fh,'lonsql',200000);
-
-# ------------------------------------------------------------------------ lond
-
- &checkon_daemon($fh,'lond',40000,1);
-
-# ------------------------------------------------------------------------ lonc
-
- &checkon_daemon($fh,'lonc',40000,1);
-
-# -------------------------------------------------------------------- lonhttpd
-
- &checkon_daemon($fh,'lonhttpd',40000);
+}
# ---------------------------------------------------------------------- lonnet
- print $fh '<hr><a name="lonnet"><h2>lonnet</h2><h3>Temp Log</h3><pre>';
+sub rotate_lonnet_logs {
+ my ($fh)=@_;
+ &log($fh,'<hr /><a name="lonnet" /><h2>lonnet</h2><h3>Temp Log</h3><pre>');
print "checking logs\n";
if (-e "$perlvar{'lonDaemons'}/logs/lonnet.log"){
open (DFH,"tail -n50 $perlvar{'lonDaemons'}/logs/lonnet.log|");
- while ($line=<DFH>) {
- print $fh "$line";
- };
+ while (my $line=<DFH>) {
+ &log($fh,&encode_entities($line,'<>&"'));
+ }
close (DFH);
}
- print $fh "</pre><h3>Perm Log</h3><pre>";
+ &log($fh,"</pre><h3>Perm Log</h3><pre>");
if (-e "$perlvar{'lonDaemons'}/logs/lonnet.perm.log") {
open(DFH,"tail -n10 $perlvar{'lonDaemons'}/logs/lonnet.perm.log|");
- while ($line=<DFH>) {
- print $fh "$line";
- };
+ while (my $line=<DFH>) {
+ &log($fh,&encode_entities($line,'<>&"'));
+ }
close (DFH);
- } else { print $fh "No perm log\n" }
+ } else { &log($fh,"No perm log\n") }
- $fname="$perlvar{'lonDaemons'}/logs/lonnet.log";
+ my $fname="$perlvar{'lonDaemons'}/logs/lonnet.log";
+ &rotate_logfile($fname,$fh,'lonnet log');
- my ($dev,$ino,$mode,$nlink,
- $uid,$gid,$rdev,$size,
- $atime,$mtime,$ctime,
- $blksize,$blocks)=stat($fname);
+ &log($fh,"</pre>");
+ &errout($fh);
+}
- if ($size>40000) {
- print $fh "Rotating logs ...<p>";
- rename("$fname.2","$fname.3");
- rename("$fname.1","$fname.2");
- rename("$fname","$fname.1");
- }
+sub rotate_other_logs {
+ my ($fh) = @_;
+ my $fname="$perlvar{'lonDaemons'}/logs/autoenroll.log";
+ &rotate_logfile($fname,$fh,'Auto Enroll log');
+ $fname="$perlvar{'lonDaemons'}/logs/autocreate.log";
+ &rotate_logfile($fname,$fh,'Create Course log');
+ $fname="$perlvar{'lonDaemons'}/logs/searchcat.log";
+ &rotate_logfile($fname,$fh,'Search Cataloguing log');
+}
- print $fh "</pre>";
- &errout($fh);
# ----------------------------------------------------------------- Connections
-
- print $fh '<hr><a name="connections"><h2>Connections</h2>';
+sub test_connections {
+ my ($fh)=@_;
+ &log($fh,'<hr /><a name="connections" /><h2>Connections</h2>');
print "testing connections\n";
- print $fh "<table border=2>";
- foreach $tryserver (sort(keys(%hostname))) {
+ &log($fh,"<table border='2'>");
+ my ($good,$bad)=(0,0);
+ my %hostname = &Apache::lonnet::all_hostnames();
+ foreach my $tryserver (sort(keys(%hostname))) {
print(".");
- $answer=reply("pong",$tryserver);
+ my $result;
+ my $answer=&Apache::lonnet::reply("ping",$tryserver);
if ($answer eq "$tryserver:$perlvar{'lonHostID'}") {
$result="<b>ok</b>";
+ $good++;
} else {
$result=$answer;
$warnings++;
- if ($answer eq 'con_lost') { $warnings++; }
+ if ($answer eq 'con_lost') {
+ $bad++;
+ $warnings++;
+ } else {
+ $good++; #self connection
+ }
}
if ($answer =~ /con_lost/) { print(" $tryserver down\n"); }
- print $fh "<tr><td>$tryserver</td><td>$result</td></tr>\n";
-
+ &log($fh,"<tr><td>$tryserver</td><td>$result</td></tr>\n");
}
- print $fh "</table>";
-
+ &log($fh,"</table>");
+ print "\n$good good, $bad bad connections\n";
&errout($fh);
-# ------------------------------------------------------------ Delayed messages
+}
+
- print $fh '<hr><a name="delayed"><h2>Delayed Messages</h2>';
+# ------------------------------------------------------------ Delayed messages
+sub check_delayed_msg {
+ my ($fh)=@_;
+ &log($fh,'<hr /><a name="delayed" /><h2>Delayed Messages</h2>');
print "checking buffers\n";
+
+ &log($fh,'<h3>Scanning Permanent Log</h3>');
- print $fh '<h3>Scanning Permanent Log</h3>';
+ my $unsend=0;
- $unsend=0;
- {
- my $dfh=IO::File->new("$perlvar{'lonDaemons'}/logs/lonnet.perm.log");
- while ($line=<$dfh>) {
- ($time,$sdf,$dserv,$dcmd)=split(/:/,$line);
- if ($sdf eq 'F') {
- $local=localtime($time);
- print $fh "<b>Failed: $time, $dserv, $dcmd</b><br>";
- $warnings++;
- }
- if ($sdf eq 'S') { $unsend--; }
- if ($sdf eq 'D') { $unsend++; }
+ my $dfh=IO::File->new("$perlvar{'lonDaemons'}/logs/lonnet.perm.log");
+ while (my $line=<$dfh>) {
+ my ($time,$sdf,$dserv,$dcmd)=split(/:/,$line);
+ if ($sdf eq 'F') {
+ my $local=localtime($time);
+ &log($fh,"<b>Failed: $time, $dserv, $dcmd</b><br>");
+ $warnings++;
}
+ if ($sdf eq 'S') { $unsend--; }
+ if ($sdf eq 'D') { $unsend++; }
}
- print $fh "Total unsend messages: <b>$unsend</b><p>\n";
+
+ &log($fh,"<p>Total unsend messages: <b>$unsend</b></p>\n");
$warnings=$warnings+5*$unsend;
if ($unsend) { $simplestatus{'unsend'}=$unsend; }
- print $fh "<h3>Outgoing Buffer</h3>";
-
+ &log($fh,"<h3>Outgoing Buffer</h3>\n<pre>");
+# list directory with delayed messages and remember offline servers
+ my %servers=();
open (DFH,"ls -lF $perlvar{'lonSockDir'}/delayed|");
- while ($line=<DFH>) {
- print $fh "$line<br>";
- };
+ while (my $line=<DFH>) {
+ my ($server)=($line=~/\.(\w+)$/);
+ if ($server) { $servers{$server}=1; }
+ &log($fh,&encode_entities($line,'<>&"'));
+ }
+ &log($fh,"</pre>\n");
close (DFH);
+# pong to all servers that have delayed messages
+# this will trigger a reverse connection, which should flush the buffers
+ foreach my $tryserver (keys %servers) {
+ my $answer=&Apache::lonnet::reply("pong",$tryserver);
+ &log($fh,"Pong to $tryserver: $answer<br />");
+ }
+}
-# ------------------------------------------------------------------------- End
- print $fh "<a name=errcount>\n";
+sub finish_logging {
+ my ($fh)=@_;
+ &log($fh,"<a name='errcount' />\n");
$totalcount=$notices+4*$warnings+100*$errors;
&errout($fh);
- print $fh "<h1>Total Error Count: $totalcount</h1>";
- $now=time;
- $date=localtime($now);
- print $fh "<hr>$date ($now)</body></html>\n";
+ &log($fh,"<h1>Total Error Count: $totalcount</h1>");
+ my $now=time;
+ my $date=localtime($now);
+ &log($fh,"<hr />$date ($now)</body></html>\n");
print "lon-status webpage updated\n";
$fh->close();
+
+ if ($errors) { $simplestatus{'errors'}=$errors; }
+ if ($warnings) { $simplestatus{'warnings'}=$warnings; }
+ if ($notices) { $simplestatus{'notices'}=$notices; }
+ $simplestatus{'time'}=time;
}
-if ($errors) { $simplestatus{'errors'}=$errors; }
-if ($warnings) { $simplestatus{'warnings'}=$warnings; }
-if ($notices) { $simplestatus{'notices'}=$notices; }
-$simplestatus{'time'}=time;
-rename ("$statusdir/newstatus.html","$statusdir/index.html");
-{
+sub log_simplestatus {
+ rename("$statusdir/newstatus.html","$statusdir/index.html");
+
my $sfh=IO::File->new(">$statusdir/loncron_simple.txt");
foreach (keys %simplestatus) {
print $sfh $_.'='.$simplestatus{$_}.'&';
@@ -574,15 +585,140 @@ rename ("$statusdir/newstatus.html","$st
print $sfh "\n";
$sfh->close();
}
-if ($totalcount>200) {
+
+sub send_mail {
print "sending mail\n";
- $emailto="$perlvar{'lonAdmEMail'}";
- if ($totalcount>1000) {
+ my $defdom = $perlvar{'lonDefDomain'};
+ my $origmail = $perlvar{'lonAdmEMail'};
+ my $emailto = &Apache::loncommon::build_recipient_list(undef,
+ 'lonstatusmail',$defdom,$origmail);
+ if ($totalcount>2500) {
$emailto.=",$perlvar{'lonSysEMail'}";
}
- $subj="LON: $perlvar{'lonHostID'} E:$errors W:$warnings N:$notices";
- system("metasend -b -t $emailto -s '$subj' -f $statusdir/index.html -m text/html");
+ my $subj="LON: $perlvar{'lonHostID'} E:$errors W:$warnings N:$notices";
+
+ my $result=system("metasend -b -S 4000000 -t $emailto -s '$subj' -f $statusdir/index.html -m text/html >& /dev/null");
+ if ($result != 0) {
+ $result=system("mail -s '$subj' $emailto < $statusdir/index.html");
+ }
+}
+
+sub usage {
+ print(<<USAGE);
+loncron - housekeeping program that checks up on various parts of Lon-CAPA
+
+Options:
+ --help Display
+ --noemail Do not send the status email
+ --justcheckconnections Only check the current status of the lonc/d
+ connections, do not send emails do not
+ check if the daemons are running, do not
+ generate lon-status
+ --justcheckdaemons Only check that all of the Lon-CAPA daemons are
+ running, do not send emails do not
+ check the lonc/d connections, do not
+ generate lon-status
+ --justreload Only tell the daemons to reload the config files,
+ do not send emails do not
+ check if the daemons are running, do not
+ generate lon-status
+
+USAGE
+}
+
+# ================================================================ Main Program
+sub main () {
+ my ($help,$justcheckdaemons,$noemail,$justcheckconnections,
+ $justreload);
+ &GetOptions("help" => \$help,
+ "justcheckdaemons" => \$justcheckdaemons,
+ "noemail" => \$noemail,
+ "justcheckconnections" => \$justcheckconnections,
+ "justreload" => \$justreload
+ );
+ if ($help) { &usage(); return; }
+# --------------------------------- Read loncapa_apache.conf and loncapa.conf
+ my $perlvarref=LONCAPA::Configuration::read_conf('loncapa.conf');
+ %perlvar=%{$perlvarref};
+ undef $perlvarref;
+ delete $perlvar{'lonReceipt'}; # remove since sensitive and not needed
+ delete $perlvar{'lonSqlAccess'}; # remove since sensitive and not needed
+ chdir($perlvar{'lonDaemons'});
+# --------------------------------------- Make sure that LON-CAPA is configured
+# I only test for one thing here (lonHostID). This is just a safeguard.
+ if ('{[[[[lonHostID]]]]}' eq $perlvar{'lonHostID'}) {
+ print("Unconfigured machine.\n");
+ my $emailto=$perlvar{'lonSysEMail'};
+ my $hostname=`/bin/hostname`;
+ chop $hostname;
+ $hostname=~s/[^\w\.]//g; # make sure is safe to pass through shell
+ my $subj="LON: Unconfigured machine $hostname";
+ system("echo 'Unconfigured machine $hostname.' |\
+ mailto $emailto -s '$subj' > /dev/null");
+ exit 1;
+ }
+
+# ----------------------------- Make sure this process is running from user=www
+ my $wwwid=getpwnam('www');
+ if ($wwwid!=$<) {
+ print("User ID mismatch. This program must be run as user 'www'\n");
+ my $emailto="$perlvar{'lonAdmEMail'},$perlvar{'lonSysEMail'}";
+ my $subj="LON: $perlvar{'lonHostID'} User ID mismatch";
+ system("echo 'User ID mismatch. loncron must be run as user www.' |\
+ mailto $emailto -s '$subj' > /dev/null");
+ exit 1;
+ }
+
+# -------------------------------------------- Force reload of host information
+ &Apache::lonnet::load_hosts_tab(1);
+ &Apache::lonnet::load_domain_tab(1);
+ &Apache::lonnet::get_iphost(1);
+
+# ---------------------------------------------------------------- Start report
+
+ $errors=0;
+ $warnings=0;
+ $notices=0;
+
+
+ my $fh;
+ if (!$justcheckdaemons && !$justcheckconnections && !$justreload) {
+ $fh=&start_logging();
+
+ &log_machine_info($fh);
+ &clean_tmp($fh);
+ &clean_lonIDs($fh);
+ &check_httpd_logs($fh);
+ &rotate_lonnet_logs($fh);
+ &rotate_other_logs($fh);
+ }
+ if (!$justcheckconnections && !$justreload) {
+ &checkon_daemon($fh,'lonmemcached',40000);
+ &checkon_daemon($fh,'lonsql',200000);
+ if ( &checkon_daemon($fh,'lond',40000,'USR1') eq 'running') {
+ &checkon_daemon($fh,'lond',40000,'USR2');
+ }
+ &checkon_daemon($fh,'lonc',40000,'USR1');
+ &checkon_daemon($fh,'lonmaxima',40000);
+ &checkon_daemon($fh,'lonr',40000);
+ }
+ if ($justreload) {
+ &checkon_daemon($fh,'lond',40000,'USR2');
+ &checkon_daemon($fh,'lonc',40000,'USR2');
+ }
+ if ($justcheckconnections) {
+ &test_connections($fh);
+ }
+ if (!$justcheckdaemons && !$justcheckconnections && !$justreload) {
+ &check_delayed_msg($fh);
+ &finish_logging($fh);
+ &log_simplestatus();
+
+ if ($totalcount>200 && !$noemail) { &send_mail(); }
+ }
}
+
+&main();
1;