--- loncom/loncron 1999/10/13 17:48:51 1.1.1.1 +++ loncom/loncron 2007/04/13 18:26:22 1.73 @@ -1,489 +1,704 @@ #!/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 1.73 2007/04/13 18:26:22 albertel Exp $ # -# 7/14,7/15,7/19,7/21,7/22 Gerd Kortemeyer +# 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/ +# + +$|=1; +use strict; + +use lib '/home/httpd/lib/perl/'; +use LONCAPA::Configuration; +use Apache::lonnet; 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 $fh (< + &log($fh,(< -
Notices$notices
Warnings$warnings
Errors$errors

Top

+

Top

ENDERROUT } -# -------------------------------------------------------------- Permanent logs -sub logperm { - my $message=shift; - my $execdir=$perlvar{'lonDaemons'}; - my $now=time; - my $local=localtime($now); - my $fh=Apache::File->new(">>$execdir/logs/lonnet.perm.log"); - print $fh "$now:$message:$local\n"; - return 1; -} +sub rotate_logfile { + my ($file,$fh,$description) = @_; + my $size=(stat($file))[7]; + if ($size>40000) { + &log($fh,"

Rotating $description ...

"); + rename("$file.2","$file.3"); + rename("$file.1","$file.2"); + rename("$file","$file.1"); + } +} + +sub start_daemon { + my ($fh,$daemon,$pidfile,$args) = @_; + my $progname=$daemon; + if ($daemon eq 'lonc') { + $progname='loncnew'; + } + my $error_fname="$perlvar{'lonDaemons'}/logs/${daemon}_errors"; + &rotate_logfile($error_fname,$fh,'error logs'); -# ------------------------------------------------ Try to send delayed messages -sub senddelayed { - my $fh=shift; - my $dfname; - my $path="$perlvar{'lonSockDir'}/delayed"; - print $fh "

Attempting to send delayed messages

"; - while ($dfname=<$path/*>) { - my $wcmd; - { - my $dfh=IO::File->new($dfname); - $wcmd=<$dfh>; - } - my ($server,$cmd)=split(/:/,$wcmd); - chomp($cmd); - my $answer=reply($cmd,$server); - if ($answer ne 'con_lost') { - unlink("$dfname"); - print $fh "Send $cmd to $server: $answer
\n"; - &logperm("S:$server:$cmd"); - } else { - print $fh "Failed to deliver $cmd to $server
\n"; - $warnings++; - } + system("$perlvar{'lonDaemons'}/$progname 2>$perlvar{'lonDaemons'}/logs/${daemon}_errors"); + sleep 1; + if (-e $pidfile) { + &log($fh,"

Seems like it started ...

"); + my $lfh=IO::File->new("$pidfile"); + my $daemonpid=<$lfh>; + chomp($daemonpid); + if ($daemonpid =~ /^\d+$/ && kill 0 => $daemonpid) { + return 1; + } else { + return 0; + } } + &log($fh,"

Seems like that did not work!

"); + $errors++; + return 0; } -# ================================================================ Main Program - +sub checkon_daemon { + my ($fh,$daemon,$maxsize,$send,$args)=@_; -# ------------------------------------------------------------ Read access.conf -{ - my $config=IO::File->new("/etc/httpd/conf/access.conf"); - - while (my $configline=<$config>) { - if ($configline =~ /PerlSetVar/) { - my ($dummy,$varname,$varvalue)=split(/\s+/,$configline); - $perlvar{$varname}=$varvalue; - } + my $result; + &log($fh,'

'.$daemon.'

Log

'); + printf("%-15s ",$daemon); + if (-e "$perlvar{'lonDaemons'}/logs/$daemon.log"){ + open (DFH,"tail -n25 $perlvar{'lonDaemons'}/logs/$daemon.log|"); + while (my $line=) { + &log($fh,"$line"); + if ($line=~/INFO/) { $notices++; } + if ($line=~/WARNING/) { $notices++; } + if ($line=~/CRITICAL/) { $warnings++; } + }; + close (DFH); } + &log($fh,"

"); + + my $pidfile="$perlvar{'lonDaemons'}/logs/$daemon.pid"; + + my $restartflag=1; + my $daemonpid; + if (-e $pidfile) { + my $lfh=IO::File->new("$pidfile"); + $daemonpid=<$lfh>; + chomp($daemonpid); + if ($daemonpid =~ /^\d+$/ && kill 0 => $daemonpid) { + &log($fh,"

$daemon at pid $daemonpid responding"); + if ($send) { &log($fh,", sending $send"); } + &log($fh,"

"); + if ($send eq 'USR1') { kill USR1 => $daemonpid; } + if ($send eq 'USR2') { kill USR2 => $daemonpid; } + $restartflag=0; + if ($send eq 'USR2') { + $result = 'reloaded'; + print "reloaded\n"; + } else { + $result = 'running'; + print "running\n"; + } + } else { + $errors++; + &log($fh,"

$daemon at pid $daemonpid not responding

"); + $restartflag=1; + &log($fh,"

Decided to clean up stale .pid file and restart $daemon

"); + } + } + if ($restartflag==1) { + $simplestatus{$daemon}='off'; + $errors++; + my $kadaemon=$daemon; + if ($kadaemon eq 'lonmemcached') { $kadaemon='memcached'; } + &log($fh,'
Killall '.$daemon.': '. + `killall $kadaemon 2>&1`.' - '); + sleep 1; + &log($fh,unlink($pidfile).' - '. + `killall -9 $kadaemon 2>&1`. + '
'); + &log($fh,"

$daemon not running, trying to start

"); + + if (&start_daemon($fh,$daemon,$pidfile,$args)) { + &log($fh,"

$daemon at pid $daemonpid responding

"); + $simplestatus{$daemon}='restarted'; + $result = 'started'; + print "started\n"; + } else { + $errors++; + &log($fh,"

$daemon at pid $daemonpid not responding

"); + &log($fh,"

Give it one more try ...

"); + print " "; + if (&start_daemon($fh,$daemon,$pidfile,$args)) { + &log($fh,"

$daemon at pid $daemonpid responding

"); + $simplestatus{$daemon}='restarted'; + $result = 'started'; + print "started\n"; + } else { + $result = 'failed'; + print " failed\n"; + $simplestatus{$daemon}='failed'; + $errors++; $errors++; + &log($fh,"

$daemon at pid $daemonpid not responding

"); + &log($fh,"

Unable to start $daemon

"); + } + } + + if (-e "$perlvar{'lonDaemons'}/logs/$daemon.log"){ + &log($fh,"

");
+	    open (DFH,"tail -n100 $perlvar{'lonDaemons'}/logs/$daemon.log|");
+	    while (my $line=) { 
+		&log($fh,"$line");
+		if ($line=~/WARNING/) { $notices++; }
+		if ($line=~/CRITICAL/) { $notices++; }
+	    };
+	    close (DFH);
+	    &log($fh,"

"); + } + } + + my $fname="$perlvar{'lonDaemons'}/logs/$daemon.log"; + &rotate_logfile($fname,$fh,'logs'); + + &errout($fh); + return $result; } -# ------------------------------------------------------------- Read hosts file -{ - my $config=IO::File->new("$perlvar{'lonTabDir'}/hosts.tab"); - - while (my $configline=<$config>) { - my ($id,$domain,$role,$name,$ip)=split(/:/,$configline); - $hostname{$id}=$name; - $hostdom{$id}=$domain; - $hostrole{$id}=$role; - $hostip{$id}=$ip; - if (($role eq 'library') && ($id ne $perlvar{'lonHostID'})) { - $libserv{$id}=$name; - } +# --------------------------------------------------------------------- Machine +sub log_machine_info { + my ($fh)=@_; + &log($fh,'

Machine Information

'); + &log($fh,"

loadavg

"); + + open (LOADAVGH,"/proc/loadavg"); + my $loadavg=; + close (LOADAVGH); + + &log($fh,"$loadavg"); + + my @parts=split(/\s+/,$loadavg); + if ($parts[1]>4.0) { + $errors++; + } elsif ($parts[1]>2.0) { + $warnings++; + } elsif ($parts[1]>1.0) { + $notices++; } -} -# ------------------------------------------------------ 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; - } + &log($fh,"

df

"); + &log($fh,"
");
+
+    open (DFH,"df|");
+    while (my $line=) { 
+	&log($fh,&encode_entities($line,'<>&"')); 
+	@parts=split(/\s+/,$line);
+	my $usage=$parts[4];
+	$usage=~s/\W//g;
+	if ($usage>90) { 
+	    $warnings++;
+	    $notices++; 
+	} elsif ($usage>80) {
+	    $warnings++;
+	} elsif ($usage>60) {
+	    $notices++;
+	}
+	if ($usage>95) { $warnings++; $warnings++; $simplestatus{'diskfull'}++; }
     }
-}
+    close (DFH);
+    &log($fh,"
"); -# ---------------------------------------------------------------- Start report -$statusdir="/home/httpd/html/lon-status"; + &log($fh,"

ps

"); + &log($fh,"
");
+    my $psproc=0;
+
+    open (PSH,"ps aux --cols 140 |");
+    while (my $line=) { 
+	&log($fh,&encode_entities($line,'<>&"')); 
+	$psproc++;
+    }
+    close (PSH);
+    &log($fh,"
"); + + if ($psproc>200) { $notices++; } + if ($psproc>250) { $notices++; } -$errors=0; -$warnings=0; -$notices=0; + &log($fh,"

distprobe

"); + &log($fh,"
");
+    open(DSH,"$perlvar{'lonDaemons'}/distprobe |");
+    while (my $line=) { 
+	&log($fh,&encode_entities($line,'<>&"')); 
+	$psproc++;
+    }
+    close(DSH);
+    &log($fh,"
"); -$now=time; -$date=localtime($now); + &errout($fh); +} -{ -my $fh=IO::File->new(">$statusdir/newstatus.html"); +sub start_logging { + my $fh=IO::File->new(">$statusdir/newstatus.html"); + my %simplestatus=(); + my $now=time; + my $date=localtime($now); + -print $fh (< LON Status Report $perlvar{'lonHostID'} - - + +

LON Status Report $perlvar{'lonHostID'}

$date ($now)

    -
  1. Configuration -
  2. Machine Information -
  3. httpd -
  4. lond -
  5. lonc -
  6. lonnet -
  7. Connections -
  8. Delayed Messages -
  9. Error Count +
  10. Configuration
    11. +
  11. Machine Information
    12. +
  12. Temporary Files
    13. +
  13. Session Tokens
    14. +
  14. httpd
    15. +
  15. lonsql
    16. +
  16. lond
    17. +
  17. lonc
    18. +
  18. lonhttpd
    19. +
  19. lonnet
    20. +
  20. Connections
    21. +
  21. Delayed Messages
    22. +
  22. Error Count
-
- +
+

Configuration

PerlVars

- +
ENDHEADERS -foreach $varname (keys %perlvar) { - print $fh "\n"; -} -print $fh "
$varname$perlvar{$varname}

Hosts

"; -foreach $id (keys %hostname) { -print $fh - ""; -print $fh "\n"; -} -print $fh "
$id$hostdom{$id}$hostrole{$id}$hostname{$id}$hostip{$id}

Spare Hosts

    "; -foreach $id (keys %spareid) { - print $fh "
  1. $id\n"; + foreach my $varname (sort(keys(%perlvar))) { + &log($fh,"$varname". + &encode_entities($perlvar{$varname},'<>&"')."\n"); + } + &log($fh,"

    Hosts

    "); + my %hostname = &Apache::lonnet::all_hostnames(); + foreach my $id (sort(keys(%hostname))) { + my $role = (&Apache::lonnet::is_library($id) ? 'library' + : 'access'); + &log($fh, + "\n"); + } + &log($fh,"
    $id".&Apache::lonnet::host_domain($id). + "".$role. + "".&Apache::lonnet::hostname($id)."

    Spare Hosts

      "); + foreach my $type (sort(keys(%Apache::lonnet::spareid))) { + &log($fh,"
    • $type\n
        "); + foreach my $id (@{ $Apache::lonnet::spareid{$type} }) { + &log($fh,"
      1. $id
        2. \n"); + } + &log($fh,"
      \n
      • \n"); + } + &log($fh,"
    \n"); + return $fh; } -print $fh "
\n"; - -# --------------------------------------------------------------------- Machine - -print $fh '

Machine Information

'; -print $fh "

loadavg

"; +# --------------------------------------------------------------- clean out tmp +sub clean_tmp { + my ($fh)=@_; + &log($fh,'

Temporary Files

'); + 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); + my $now=time; + my $since=$now-$mtime; + if ($since>$perlvar{'lonExpire'}) { + my $line=''; + if (open(PROBE,$fname)) { + $line=; + close(PROBE); + } + unless ($line=~/^CHECKOUTTOKEN\&/) { + $cleaned++; + unlink("$fname"); + } else { + if ($since>365*$perlvar{'lonExpire'}) { + $cleaned++; + unlink("$fname"); + } else { $old++; } + } + } + } + &log($fh,"Cleaned up ".$cleaned." files (".$old." old checkout tokens)."); +} -open (LOADAVGH,"/proc/loadavg"); -$loadavg=; -close (LOADAVGH); +# ------------------------------------------------------------ clean out lonIDs +sub clean_lonIDs { + my ($fh)=@_; + &log($fh,'

Session Tokens

'); + 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); + my $now=time; + my $since=$now-$mtime; + if ($since>$perlvar{'lonExpire'}) { + $cleaned++; + &log($fh,"Unlinking $fname
"); + unlink("$fname"); + } else { + $active++; + } + } + &log($fh,"

Cleaned up ".$cleaned." stale session token(s).

"); + &log($fh,"

$active open session(s)

"); +} -print $fh "$loadavg"; -@parts=split(/\s+/,$loadavg); -if ($parts[1]>3.0) { - $errors++; -} elsif ($parts[1]>2.0) { - $warnings++; -} elsif ($parts[1]>1.0) { - $notices++; -} - -print $fh "

df

"; -print $fh "
";
-
-open (DFH,"df|");
-while ($line=) { 
-   print $fh "$line"; 
-   @parts=split(/\s+/,$line);
-   $usage=$parts[4];
-   $usage=~s/\W//g;
-   if ($usage>90) { 
-      $errors++; 
-   } elsif ($usage>80) {
-      $warnings++;
-   } elsif ($usage>60) {
-      $notices++;
-   }
-   if ($usage>95) { $errors++; }
-}
-close (DFH);
-print $fh "
"; -&errout($fh); # ----------------------------------------------------------------------- httpd - -print $fh '

httpd

Access Log

';
-
-open (DFH,"tail -n40 /etc/httpd/logs/access_log|");
-while ($line=) { print $fh "$line" };
-close (DFH);
-
-print $fh "

Error Log

";
-
-open (DFH,"tail -n50 /etc/httpd/logs/error_log|");
-while ($line=) { 
-   print $fh "$line";
-   if ($line=~/\[error\]/) { $notices++; } 
-};
-close (DFH);
-print $fh "
"; -&errout($fh); -# ------------------------------------------------------------------------ lond - -print $fh '

lond

Log

';
-
-if (-e "$perlvar{'lonDaemons'}/logs/lond.log"){
-open (DFH,"tail -n50 $perlvar{'lonDaemons'}/logs/lond.log|");
-while ($line=) { 
-   print $fh "$line";
-   if ($line=~/giving up/) { $notices++; }
-};
-close (DFH);
-}
-print $fh "
"; - -my $londfile="$perlvar{'lonDaemons'}/logs/lond.pid"; - -if (-e $londfile) { - my $lfh=IO::File->new("$londfile"); - my $londpid=<$lfh>; - chomp($londpid); - if (kill 0 => $londpid) { - print $fh "

lond at pid $londpid responding

"; - } else { - $errors++; $errors++; - print $fh "

lond at pid $londpid not responding

"; - } -} else { - $errors++; - print $fh "

lond not running, trying to start

"; - system("$perlvar{'lonDaemons'}/lond"); - sleep 120; - if (-e $londfile) { - print $fh "Seems like it started ...

"; - my $lfh=IO::File->new("$londfile"); - my $londpid=<$lfh>; - chomp($londpid); - sleep 30; - if (kill 0 => $londpid) { - print $fh "

lond at pid $londpid responding

"; - } else { - $errors++; $errors++; - print $fh "

lond at pid $londpid not responding

"; - print $fh "Give it one more try ...

"; - system("$perlvar{'lonDaemons'}/lond"); - sleep 120; - } - } else { - print $fh "Seems like that did not work!

"; - $errors++; - } -} - -$fname="$perlvar{'lonDaemons'}/logs/lond.log"; - - my ($dev,$ino,$mode,$nlink, - $uid,$gid,$rdev,$size, - $atime,$mtime,$ctime, - $blksize,$blocks)=stat($fname); - -if ($size>40000) { - print $fh "Rotating logs ...

"; - rename("$fname.2","$fname.3"); - rename("$fname.1","$fname.2"); - rename("$fname","$fname.1"); -} - -&errout($fh); -# ------------------------------------------------------------------------ lonc - -print $fh '

lonc

Log

';
-
-if (-e "$perlvar{'lonDaemons'}/logs/lonc.log"){
-open (DFH,"tail -n50 $perlvar{'lonDaemons'}/logs/lonc.log|");
-while ($line=) { 
-   print $fh "$line";
-   if ($line=~/died/) { $notices++; }
-};
-close (DFH);
-}
-print $fh "
"; - -my $loncfile="$perlvar{'lonDaemons'}/logs/lonc.pid"; - -if (-e $loncfile) { - my $lfh=IO::File->new("$loncfile"); - my $loncpid=<$lfh>; - chomp($loncpid); - if (kill 0 => $loncpid) { - print $fh "

lonc at pid $loncpid responding, sending USR1

"; - kill USR1 => $loncpid; - } else { - $errors++; $errors++; - print $fh "

lonc at pid $loncpid not responding

"; - } -} else { - $errors++; - print $fh "

lonc not running, trying to start

"; - system("$perlvar{'lonDaemons'}/lonc"); - sleep 120; - if (-e $loncfile) { - print $fh "Seems like it started ...

"; - my $lfh=IO::File->new("$loncfile"); - my $loncpid=<$lfh>; - chomp($loncpid); - sleep 30; - if (kill 0 => $loncpid) { - print $fh "

lonc at pid $loncpid responding

"; - } else { - $errors++; $errors++; - print $fh "

lonc at pid $loncpid not responding

"; - print $fh "Give it one more try ...

"; - system("$perlvar{'lonDaemons'}/lonc"); - sleep 120; - } - } else { - print $fh "Seems like that did not work!

"; - $errors++; - } -} - -$fname="$perlvar{'lonDaemons'}/logs/lonc.log"; - - my ($dev,$ino,$mode,$nlink, - $uid,$gid,$rdev,$size, - $atime,$mtime,$ctime, - $blksize,$blocks)=stat($fname); - -if ($size>40000) { - print $fh "Rotating logs ...

"; - rename("$fname.2","$fname.3"); - rename("$fname.1","$fname.2"); - rename("$fname","$fname.1"); +sub check_httpd_logs { + my ($fh)=@_; + &log($fh,'

httpd

Access Log

');
+    
+    open (DFH,"tail -n25 /etc/httpd/logs/access_log|");
+    while (my $line=) { &log($fh,&encode_entities($line,'<>&"')) };
+    close (DFH);
+	
+    &log($fh,"

Error Log

");
+	
+    open (DFH,"tail -n25 /etc/httpd/logs/error_log|");
+    while (my $line=) { 
+	&log($fh,"$line");
+	if ($line=~/\[error\]/) { $notices++; } 
+    }
+    close (DFH);
+    &log($fh,"
"); + &errout($fh); } - -&errout($fh); # ---------------------------------------------------------------------- lonnet -print $fh '

lonnet

Temp Log

';
-if (-e "$perlvar{'lonDaemons'}/logs/lonnet.log"){
-open (DFH,"tail -n50 $perlvar{'lonDaemons'}/logs/lonnet.log|");
-while ($line=) { 
-    print $fh "$line";
-    if ($line=~/Delayed/) { $warnings++; }
-    if ($line=~/giving up/) { $warnings++; }
-    if ($line=~/FAILED/) { $errors++; }
-};
-close (DFH);
-}
-print $fh "

Perm Log

"; - -if (-e "$perlvar{'lonDaemons'}/logs/lonnet.perm.log") { - open(DFH,"tail -n10 $perlvar{'lonDaemons'}/logs/lonnet.perm.log|"); -while ($line=) { - print $fh "$line"; -}; -close (DFH); -} else { print $fh "No perm log\n" } - -$fname="$perlvar{'lonDaemons'}/logs/lonnet.log"; - - my ($dev,$ino,$mode,$nlink, - $uid,$gid,$rdev,$size, - $atime,$mtime,$ctime, - $blksize,$blocks)=stat($fname); - -if ($size>40000) { - print $fh "Rotating logs ...

"; - rename("$fname.2","$fname.3"); - rename("$fname.1","$fname.2"); - rename("$fname","$fname.1"); +sub rotate_lonnet_logs { + my ($fh)=@_; + &log($fh,'

lonnet

Temp Log

');
+    print "checking logs\n";
+    if (-e "$perlvar{'lonDaemons'}/logs/lonnet.log"){
+	open (DFH,"tail -n50 $perlvar{'lonDaemons'}/logs/lonnet.log|");
+	while (my $line=) { 
+	    &log($fh,&encode_entities($line,'<>&"'));
+	}
+	close (DFH);
+    }
+    &log($fh,"

Perm Log

");
+    
+    if (-e "$perlvar{'lonDaemons'}/logs/lonnet.perm.log") {
+	open(DFH,"tail -n10 $perlvar{'lonDaemons'}/logs/lonnet.perm.log|");
+	while (my $line=) { 
+	    &log($fh,&encode_entities($line,'<>&"'));
+	}
+	close (DFH);
+    } else { &log($fh,"No perm log\n") }
+
+    my $fname="$perlvar{'lonDaemons'}/logs/lonnet.log";
+    &rotate_logfile($fname,$fh,'lonnet log');
+
+    &log($fh,"
"); + &errout($fh); +} + +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 $fh ""; -&errout($fh); # ----------------------------------------------------------------- Connections +sub test_connections { + my ($fh)=@_; + &log($fh,'

Connections

'); + print "testing connections\n"; + &log($fh,""); + my ($good,$bad)=(0,0); + my %hostname = &Apache::lonnet::all_hostnames(); + foreach my $tryserver (sort(keys(%hostname))) { + print("."); + my $result; + my $answer=&Apache::lonnet::reply("ping",$tryserver); + if ($answer eq "$tryserver:$perlvar{'lonHostID'}") { + $result="ok"; + $good++; + } else { + $result=$answer; + $warnings++; + if ($answer eq 'con_lost') { + $bad++; + $warnings++; + } else { + $good++; #self connection + } + } + if ($answer =~ /con_lost/) { print(" $tryserver down\n"); } + &log($fh,"\n"); + } + &log($fh,"
$tryserver$result
"); + print "\n$good good, $bad bad connections\n"; + &errout($fh); +} -print $fh '

Connections

'; -print $fh ""; -foreach $tryserver (keys %hostname) { +# ------------------------------------------------------------ Delayed messages +sub check_delayed_msg { + my ($fh)=@_; + &log($fh,'

Delayed Messages

'); + print "checking buffers\n"; + + &log($fh,'

Scanning Permanent Log

'); - $answer=reply("pong",$tryserver); - if ($answer eq "$tryserver:$perlvar{'lonHostID'}") { - $result="ok"; - } else { - $result=$answer; - $warnings++; - if ($answer eq 'con_lost') { $warnings++; } + my $unsend=0; + + 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,"Failed: $time, $dserv, $dcmd
"); + $warnings++; + } + if ($sdf eq 'S') { $unsend--; } + if ($sdf eq 'D') { $unsend++; } } - print $fh "\n"; + &log($fh,"

Total unsend messages: $unsend

\n"); + $warnings=$warnings+5*$unsend; + + if ($unsend) { $simplestatus{'unsend'}=$unsend; } + &log($fh,"

Outgoing Buffer

\n
");
+# list directory with delayed messages and remember offline servers
+    my %servers=();
+    open (DFH,"ls -lF $perlvar{'lonSockDir'}/delayed|");
+    while (my $line=) {
+        my ($server)=($line=~/\.(\w+)$/);
+        if ($server) { $servers{$server}=1; }
+	&log($fh,&encode_entities($line,'<>&"'));
+    }
+    &log($fh,"
\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
"); + } } -print $fh "
$tryserver$result
"; -&errout($fh); -# ------------------------------------------------------------ Delayed messages +sub finish_logging { + my ($fh)=@_; + &log($fh,"\n"); + $totalcount=$notices+4*$warnings+100*$errors; + &errout($fh); + &log($fh,"

Total Error Count: $totalcount

"); + my $now=time; + my $date=localtime($now); + &log($fh,"
$date ($now)\n"); + print "lon-status webpage updated\n"; + $fh->close(); + + if ($errors) { $simplestatus{'errors'}=$errors; } + if ($warnings) { $simplestatus{'warnings'}=$warnings; } + if ($notices) { $simplestatus{'notices'}=$notices; } + $simplestatus{'time'}=time; +} + +sub log_simplestatus { + rename("$statusdir/newstatus.html","$statusdir/index.html"); + + my $sfh=IO::File->new(">$statusdir/loncron_simple.txt"); + foreach (keys %simplestatus) { + print $sfh $_.'='.$simplestatus{$_}.'&'; + } + print $sfh "\n"; + $sfh->close(); +} -print $fh '

Delayed Messages

'; +sub send_mail { + print "sending mail\n"; + my $emailto="$perlvar{'lonAdmEMail'}"; + if ($totalcount>2500) { + $emailto.=",$perlvar{'lonSysEMail'}"; + } + my $subj="LON: $perlvar{'lonHostID'} E:$errors W:$warnings N:$notices"; -&senddelayed($fh); + 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"); + } +} -print $fh '

Scanning Permanent Log

'; +sub usage { + print(<new("$perlvar{'lonDaemons'}/logs/lonnet.perm.log"); - while ($line=<$dfh>) { - ($time,$sdf,$dserv,$dcmd)=split(/:/,$line); - if ($sdf eq 'F') { - $local=localtime($time); - print "Failed: $time, $dserv, $dcmd
"; - $warnings++; - } - if ($sdf eq 'S') { $unsend--; } - if ($sdf eq 'D') { $unsend++; } - } -} -print $fh "Total unsend messages: $unsend

\n"; -$warnings=$warnings+5*$unsend; - -print $fh "

Outgoing Buffer

"; - -open (DFH,"ls -lF $perlvar{'lonSockDir'}/delayed|"); -while ($line=) { - print $fh "$line
"; -}; -close (DFH); - -# ------------------------------------------------------------------------- End -print $fh "\n"; -$totalcount=$notices+4*$warnings+100*$errors; -&errout($fh); -print $fh "

Total Error Count: $totalcount

"; -$now=time; -$date=localtime($now); -print $fh "
$date ($now)\n"; +# ================================================================ 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 + +# --------------------------------------- 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); -rename ("$statusdir/newstatus.html","$statusdir/index.html"); - -if ($totalcount>200) { - $emailto="$perlvar{'lonAdmEMail'},$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"); +# ---------------------------------------------------------------- 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,'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,'lonhttpd',40000); + &checkon_daemon($fh,'lonmemcached',40000); + &checkon_daemon($fh,'lonmaxima',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; 500 Internal Server Error

Internal Server Error

The server encountered an internal error or misconfiguration and was unable to complete your request.

Please contact the server administrator at root@localhost to inform them of the time this error occurred, and the actions you performed just before this error.

More information about this error may be available in the server error log.