[BACK]Return to loncron CVS log [TXT] [DIR] Up to [LON-CAPA] / loncom

Diff for /loncom/loncron between versions 1.42 and 1.69

version 1.42, 2003/09/10 19:13:09 version 1.69, 2006/11/01 21:08:06
Line 1 Line 1
 #!/usr/bin/perl  #!/usr/bin/perl
   
 # The LearningOnline Network  # Housekeeping program, started by cron, loncontrol and loncron.pl
 # Housekeeping program, started by cron  
 #  #
 # (TCP networking package  # $Id$
 # 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)  # 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;  $|=1;
   use strict;
   
 use lib '/home/httpd/lib/perl/';  use lib '/home/httpd/lib/perl/';
 use LONCAPA::Configuration;  use LONCAPA::Configuration;
   
 use IO::File;  use IO::File;
 use IO::Socket;  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  # -------------------------------------------------- Non-critical communication
 sub reply {  sub reply {
     my ($cmd,$server)=@_;      my ($cmd,$server,$hostname)=@_;
     my $peerfile="$perlvar{'lonSockDir'}/$server";      my $peerfile="$perlvar{'lonSockDir'}/".$hostname->{$server};
     my $client=IO::Socket::UNIX->new(Peer    =>"$peerfile",      my $client=IO::Socket::UNIX->new(Peer    =>"$peerfile",
                                      Type    => SOCK_STREAM,                                       Type    => SOCK_STREAM,
                                      Timeout => 10)                                       Timeout => 10)
        or return "con_lost";         or return "con_lost";
     print $client "$cmd\n";      print $client "sethost:$server:$cmd\n";
     my $answer=<$client>;      my $answer=<$client>;
     chomp($answer);      chomp($answer);
     if (!$answer) { $answer="con_lost"; }      if (!$answer) { $answer="con_lost"; }
Line 38  sub reply { Line 60  sub reply {
   
 # --------------------------------------------------------- Output error status  # --------------------------------------------------------- Output error status
   
   sub log {
       my $fh=shift;
       if ($fh) { print $fh @_  }
   }
   
 sub errout {  sub errout {
    my $fh=shift;     my $fh=shift;
    print $fh (<<ENDERROUT);     &log($fh,(<<ENDERROUT));
      <p><table border=2 bgcolor="#CCCCCC">       <table border="2" bgcolor="#CCCCCC">
      <tr><td>Notices</td><td>$notices</td></tr>       <tr><td>Notices</td><td>$notices</td></tr>
      <tr><td>Warnings</td><td>$warnings</td></tr>       <tr><td>Warnings</td><td>$warnings</td></tr>
      <tr><td>Errors</td><td>$errors</td></tr>       <tr><td>Errors</td><td>$errors</td></tr>
      </table><p><a href="#top">Top</a><p>       </table><p><a href="#top">Top</a></p>
 ENDERROUT  ENDERROUT
 }  }
   
 sub start_daemon {  sub start_daemon {
     my ($fh,$daemon,$pidfile) = @_;      my ($fh,$daemon,$pidfile,$args) = @_;
     system("$perlvar{'lonDaemons'}/$daemon 2>>$perlvar{'lonDaemons'}/logs/${daemon}_errors");      my $progname=$daemon;
     sleep 2;      if ($daemon eq 'lonc' && $args eq 'new') {
    $progname='loncnew'; 
    print "new ";
       }
       my $error_fname="$perlvar{'lonDaemons'}/logs/${daemon}_errors";
       my $size=(stat($error_fname))[7];
       if ($size>40000) {
    &log($fh,"<p>Rotating error logs ...</p>");
    rename("$error_fname.2","$error_fname.3");
    rename("$error_fname.1","$error_fname.2");
    rename("$error_fname","$error_fname.1");
       }
       system("$perlvar{'lonDaemons'}/$progname 2>$perlvar{'lonDaemons'}/logs/${daemon}_errors");
       sleep 1;
     if (-e $pidfile) {      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 $lfh=IO::File->new("$pidfile");
  my $daemonpid=<$lfh>;   my $daemonpid=<$lfh>;
  chomp($daemonpid);   chomp($daemonpid);
  sleep 2;   if ($daemonpid =~ /^\d+$/ && kill 0 => $daemonpid) {
  if (kill 0 => $daemonpid) {  
     return 1;      return 1;
  } else {   } else {
     return 0;      return 0;
  }   }
     }      }
     print $fh "Seems like that did not work!<p>";      &log($fh,"<p>Seems like that did not work!</p>");
     $errors++;      $errors++;
     return 0;      return 0;
 }  }
   
 sub checkon_daemon {  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>';      my $result;
     printf("%-10s ",$daemon);      &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"){      if (-e "$perlvar{'lonDaemons'}/logs/$daemon.log"){
  open (DFH,"tail -n25 $perlvar{'lonDaemons'}/logs/$daemon.log|");   open (DFH,"tail -n25 $perlvar{'lonDaemons'}/logs/$daemon.log|");
  while ($line=<DFH>) {    while (my $line=<DFH>) { 
     print $fh "$line";      &log($fh,"$line");
     if ($line=~/INFO/) { $notices++; }      if ($line=~/INFO/) { $notices++; }
     if ($line=~/WARNING/) { $notices++; }      if ($line=~/WARNING/) { $notices++; }
     if ($line=~/CRITICAL/) { $warnings++; }      if ($line=~/CRITICAL/) { $warnings++; }
  };   };
  close (DFH);   close (DFH);
     }      }
     print $fh "</pre>";      &log($fh,"</tt></p>");
           
     my $pidfile="$perlvar{'lonDaemons'}/logs/$daemon.pid";      my $pidfile="$perlvar{'lonDaemons'}/logs/$daemon.pid";
           
     my $restartflag=1;      my $restartflag=1;
           my $daemonpid;
     if (-e $pidfile) {      if (-e $pidfile) {
  my $lfh=IO::File->new("$pidfile");   my $lfh=IO::File->new("$pidfile");
  my $daemonpid=<$lfh>;   $daemonpid=<$lfh>;
  chomp($daemonpid);   chomp($daemonpid);
  if (kill 0 => $daemonpid) {   if ($daemonpid =~ /^\d+$/ && kill 0 => $daemonpid) {
     print $fh "<h3>$daemon at pid $daemonpid responding";      &log($fh,"<h3>$daemon at pid $daemonpid responding");
     if ($sendusr1) { print $fh ", sending USR1"; }      if ($send) { &log($fh,", sending $send"); }
     print $fh "</h3>";      &log($fh,"</h3>");
     if ($sendusr1) { kill USR1 => $daemonpid; }      if ($send eq 'USR1') { kill USR1 => $daemonpid; }
       if ($send eq 'USR2') { kill USR2 => $daemonpid; }
     $restartflag=0;      $restartflag=0;
     print "running\n";      if ($send eq 'USR2') {
    $result = 'reloaded';
    print "reloaded\n";
       } else {
    $result = 'running';
    print "running\n";
       }
  } else {   } else {
     $errors++;      $errors++;
     print $fh "<h3>$daemon at pid $daemonpid not responding</h3>";      &log($fh,"<h3>$daemon at pid $daemonpid not responding</h3>");
     $restartflag=1;      $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) {      if ($restartflag==1) {
  $simplestatus{$daemon}='off';   $simplestatus{$daemon}='off';
  $errors++;   $errors++;
  print $fh '<br><font color="red">Killall '.$daemon.': '.   my $kadaemon=$daemon;
     `killall $daemon 2>&1`.' - ';   if ($kadaemon eq 'lonmemcached') { $kadaemon='memcached'; }
  sleep 2;   &log($fh,'<br><font color="red">Killall '.$daemon.': '.
  print $fh unlink($pidfile).' - '.      `killall $kadaemon 2>&1`.' - ');
     `killall -9 $daemon 2>&1`.   sleep 1;
     '</font><br>';   &log($fh,unlink($pidfile).' - '.
  print $fh "<h3>$daemon not running, trying to start</h3>";      `killall -9 $kadaemon 2>&1`.
       '</font><br>');
    &log($fh,"<h3>$daemon not running, trying to start</h3>");
   
  if (&start_daemon($fh,$daemon,$pidfile)) {   if (&start_daemon($fh,$daemon,$pidfile,$args)) {
     print $fh "<h3>$daemon at pid $daemonpid responding</h3>";      &log($fh,"<h3>$daemon at pid $daemonpid responding</h3>");
     $simplestatus{$daemon}='restarted';      $simplestatus{$daemon}='restarted';
       $result = 'started';
     print "started\n";      print "started\n";
  } else {   } else {
     $errors++;      $errors++;
     print $fh "<h3>$daemon at pid $daemonpid not responding</h3>";      &log($fh,"<h3>$daemon at pid $daemonpid not responding</h3>");
     print $fh "Give it one more try ...<p>";      &log($fh,"<p>Give it one more try ...</p>");
     print " ";      print " ";
     if (&start_daemon($fh,$daemon,$pidfile)) {      if (&start_daemon($fh,$daemon,$pidfile,$args)) {
  print $fh "<h3>$daemon at pid $daemonpid responding</h3>";   &log($fh,"<h3>$daemon at pid $daemonpid responding</h3>");
  $simplestatus{$daemon}='restarted';   $simplestatus{$daemon}='restarted';
    $result = 'started';
  print "started\n";   print "started\n";
     } else {      } else {
    $result = 'failed';
  print " failed\n";   print " failed\n";
  $simplestatus{$daemon}='failed';   $simplestatus{$daemon}='failed';
  $errors++; $errors++;   $errors++; $errors++;
  print $fh "<h3>$daemon at pid $daemonpid not responding</h3>";   &log($fh,"<h3>$daemon at pid $daemonpid not responding</h3>");
  print $fh "Unable to start $daemon<p>";   &log($fh,"<p>Unable to start $daemon</p>");
     }      }
  }   }
   
  if (-e "$perlvar{'lonDaemons'}/logs/$daemon.log"){   if (-e "$perlvar{'lonDaemons'}/logs/$daemon.log"){
     print $fh "<p><pre>";      &log($fh,"<p><pre>");
     open (DFH,"tail -n100 $perlvar{'lonDaemons'}/logs/$daemon.log|");      open (DFH,"tail -n100 $perlvar{'lonDaemons'}/logs/$daemon.log|");
     while ($line=<DFH>) {       while (my $line=<DFH>) { 
  print $fh "$line";   &log($fh,"$line");
  if ($line=~/WARNING/) { $notices++; }   if ($line=~/WARNING/) { $notices++; }
  if ($line=~/CRITICAL/) { $notices++; }   if ($line=~/CRITICAL/) { $notices++; }
     };      };
     close (DFH);      close (DFH);
     print $fh "</pre>";      &log($fh,"</pre></p>");
  }   }
     }      }
           
     $fname="$perlvar{'lonDaemons'}/logs/$daemon.log";      my $fname="$perlvar{'lonDaemons'}/logs/$daemon.log";
           
     my ($dev,$ino,$mode,$nlink,      my ($dev,$ino,$mode,$nlink,
  $uid,$gid,$rdev,$size,   $uid,$gid,$rdev,$size,
Line 163  sub checkon_daemon { Line 215  sub checkon_daemon {
  $blksize,$blocks)=stat($fname);   $blksize,$blocks)=stat($fname);
           
     if ($size>$maxsize) {      if ($size>$maxsize) {
  print $fh "Rotating logs ...<p>";   &log($fh,"<p>Rotating logs ...</p>");
  rename("$fname.2","$fname.3");   rename("$fname.2","$fname.3");
  rename("$fname.1","$fname.2");   rename("$fname.1","$fname.2");
  rename("$fname","$fname.1");   rename("$fname","$fname.1");
     }      }
   
     &errout($fh);      &errout($fh);
       return $result;
 }  }
 # ================================================================ Main Program  
   
 # --------------------------------- Read loncapa_apache.conf and loncapa.conf  # --------------------------------------------------------------------- Machine
 my $perlvarref=LONCAPA::Configuration::read_conf('loncapa.conf');  sub log_machine_info {
 %perlvar=%{$perlvarref};      my ($fh)=@_;
 undef $perlvarref;      &log($fh,'<hr /><a name="machine" /><h2>Machine Information</h2>');
 delete $perlvar{'lonReceipt'}; # remove since sensitive and not needed      &log($fh,"<h3>loadavg</h3>");
 delete $perlvar{'lonSqlAccess'}; # remove since sensitive and not needed  
       open (LOADAVGH,"/proc/loadavg");
 # --------------------------------------- Make sure that LON-CAPA is configured      my $loadavg=<LOADAVGH>;
 # I only test for one thing here (lonHostID).  This is just a safeguard.      close (LOADAVGH);
 if ('{[[[[lonHostID]]]]}' eq $perlvar{'lonHostID'}) {      
    print("Unconfigured machine.\n");      &log($fh,"<tt>$loadavg</tt>");
    $emailto=$perlvar{'lonSysEMail'};      
    $hostname=`/bin/hostname`;      my @parts=split(/\s+/,$loadavg);
    chop $hostname;      if ($parts[1]>4.0) {
    $hostname=~s/[^\w\.]//g; # make sure is safe to pass through shell   $errors++;
    $subj="LON: Unconfigured machine $hostname";      } elsif ($parts[1]>2.0) {
    system("echo 'Unconfigured machine $hostname.' |\   $warnings++;
  mailto $emailto -s '$subj' > /dev/null");      } elsif ($parts[1]>1.0) {
     exit 1;   $notices++;
 }      }
   
 # ----------------------------- 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      &log($fh,"<h3>df</h3>");
 {      &log($fh,"<pre>");
     my $config=IO::File->new("$perlvar{'lonTabDir'}/hosts.tab");  
   
     while (my $configline=<$config>) {      open (DFH,"df|");
  my ($id,$domain,$role,$name,$ip,$domdescr)=split(/:/,$configline);      while (my $line=<DFH>) { 
  if ($id && $domain && $role && $name && $ip) {   &log($fh,&encode_entities($line,'<>&"')); 
     $hostname{$id}=$name;   @parts=split(/\s+/,$line);
     $hostdom{$id}=$domain;   my $usage=$parts[4];
     $hostip{$id}=$ip;   $usage=~s/\W//g;
     $hostrole{$id}=$role;   if ($usage>90) { 
     if ($domdescr) { $domaindescription{$domain}=$domdescr; }      $warnings++;
     if (($role eq 'library') && ($id ne $perlvar{'lonHostID'})) {      $notices++; 
  $libserv{$id}=$name;   } elsif ($usage>80) {
     }      $warnings++;
  } else {   } elsif ($usage>60) {
     if ($configline) {      $notices++;
 # &logthis("Skipping hosts.tab line -$configline-");  
     }  
  }   }
    if ($usage>95) { $warnings++; $warnings++; $simplestatus{'diskfull'}++; }
     }      }
 }      close (DFH);
       &log($fh,"</pre>");
   
 # ------------------------------------------------------ Read spare server file  
 {  
     my $config=IO::File->new("$perlvar{'lonTabDir'}/spare.tab");  
   
     while (my $configline=<$config>) {      &log($fh,"<h3>ps</h3>");
        chomp($configline);      &log($fh,"<pre>");
        if (($configline) && ($configline ne $perlvar{'lonHostID'})) {      my $psproc=0;
           $spareid{$configline}=1;  
        }      open (PSH,"ps aux --cols 140 |");
       while (my $line=<PSH>) { 
    &log($fh,&encode_entities($line,'<>&"')); 
    $psproc++;
     }      }
 }      close (PSH);
       &log($fh,"</pre>");
   
 # ---------------------------------------------------------------- Start report      if ($psproc>200) { $notices++; }
       if ($psproc>250) { $notices++; }
 $statusdir="/home/httpd/html/lon-status";  
   
 $errors=0;      &log($fh,"<h3>distprobe</h3>");
 $warnings=0;      &log($fh,"<pre>");
 $notices=0;      open(DSH,"$perlvar{'lonDaemons'}/distprobe |");
       while (my $line=<DSH>) { 
    &log($fh,&encode_entities($line,'<>&"')); 
    $psproc++;
       }
       close(DSH);
       &log($fh,"</pre>");
   
 $now=time;      &errout($fh);
 $date=localtime($now);  }
   
 {  sub start_logging {
 my $fh=IO::File->new(">$statusdir/newstatus.html");      my ($hostdom,$hostrole,$hostname,$spareid)=@_;
 my %simplestatus=();      my $fh=IO::File->new(">$statusdir/newstatus.html");
       my %simplestatus=();
       my $now=time;
       my $date=localtime($now);
       
   
 print $fh (<<ENDHEADERS);      &log($fh,(<<ENDHEADERS));
 <html>  <html>
 <head>  <head>
 <title>LON Status Report $perlvar{'lonHostID'}</title>  <title>LON Status Report $perlvar{'lonHostID'}</title>
 </head>  </head>
 <body bgcolor="#AAAAAA">  <body bgcolor="#AAAAAA">
 <a name="top">  <a name="top" />
 <h1>LON Status Report $perlvar{'lonHostID'}</h1>  <h1>LON Status Report $perlvar{'lonHostID'}</h1>
 <h2>$date ($now)</h2>  <h2>$date ($now)</h2>
 <ol>  <ol>
 <li><a href="#configuration">Configuration</a>  <li><a href="#configuration">Configuration</a></li>
 <li><a href="#machine">Machine Information</a>  <li><a href="#machine">Machine Information</a></li>
 <li><a href="#tmp">Temporary Files</a>  <li><a href="#tmp">Temporary Files</a></li>
 <li><a href="#tokens">Session Tokens</a>  <li><a href="#tokens">Session Tokens</a></li>
 <li><a href="#httpd">httpd</a>  <li><a href="#httpd">httpd</a></li>
 <li><a href="#lonsql">lonsql</a>  <li><a href="#lonsql">lonsql</a></li>
 <li><a href="#lond">lond</a>  <li><a href="#lond">lond</a></li>
 <li><a href="#lonc">lonc</a>  <li><a href="#lonc">lonc</a></li>
 <li><a href="#lonhttpd">lonhttpd</a>  <li><a href="#lonhttpd">lonhttpd</a></li>
 <li><a href="#lonnet">lonnet</a>  <li><a href="#lonnet">lonnet</a></li>
 <li><a href="#connections">Connections</a>  <li><a href="#connections">Connections</a></li>
 <li><a href="#delayed">Delayed Messages</a>  <li><a href="#delayed">Delayed Messages</a></li>
 <li><a href="#errcount">Error Count</a>  <li><a href="#errcount">Error Count</a></li>
 </ol>  </ol>
 <hr>  <hr />
 <a name="configuration">  <a name="configuration" />
 <h2>Configuration</h2>  <h2>Configuration</h2>
 <h3>PerlVars</h3>  <h3>PerlVars</h3>
 <table border=2>  <table border="2">
 ENDHEADERS  ENDHEADERS
   
 foreach $varname (sort(keys(%perlvar))) {      foreach my $varname (sort(keys(%perlvar))) {
     print $fh "<tr><td>$varname</td><td>$perlvar{$varname}</td></tr>\n";   &log($fh,"<tr><td>$varname</td><td>".
 }       &encode_entities($perlvar{$varname},'<>&"')."</td></tr>\n");
 print $fh "</table><h3>Hosts</h3><table border=2>";      }
 foreach $id (sort(keys(%hostname))) {      &log($fh,"</table><h3>Hosts</h3><table border='2'>");
     print $fh       foreach my $id (sort(keys(%{$hostname}))) {
  "<tr><td>$id</td><td>$hostdom{$id}</td><td>$hostrole{$id}</td>";   &log($fh,
     print $fh "<td>$hostname{$id}</td><td>$hostip{$id}</td></tr>\n";      "<tr><td>$id</td><td>".$hostdom->{$id}.
 }      "</td><td>".$hostrole->{$id}.
 print $fh "</table><h3>Spare Hosts</h3><ol>";      "</td><td>".$hostname->{$id}."</td></tr>\n");
 foreach $id (sort(keys(%spareid))) {      }
     print $fh "<li>$id\n";      &log($fh,"</table><h3>Spare Hosts</h3><ol>");
       foreach my $id (sort(keys(%{$spareid}))) {
    &log($fh,"<li>$id\n</li>");
       }
       &log($fh,"</ol>\n");
       return $fh;
 }  }
   
 print $fh "</ol>\n";  # --------------------------------------------------------------- clean out tmp
   sub clean_tmp {
 # --------------------------------------------------------------------- Machine      my ($fh)=@_;
       &log($fh,'<hr /><a name="tmp" /><h2>Temporary Files</h2>');
 print $fh '<hr><a name="machine"><h2>Machine Information</h2>';      my $cleaned=0;
 print $fh "<h3>loadavg</h3>";      my $old=0;
       while (my $fname=<$perlvar{'lonDaemons'}/tmp/*>) {
 open (LOADAVGH,"/proc/loadavg");   my ($dev,$ino,$mode,$nlink,
 $loadavg=<LOADAVGH>;      $uid,$gid,$rdev,$size,
 close (LOADAVGH);      $atime,$mtime,$ctime,
       $blksize,$blocks)=stat($fname);
 print $fh "<tt>$loadavg</tt>";   my $now=time;
    my $since=$now-$mtime;
 @parts=split(/\s+/,$loadavg);   if ($since>$perlvar{'lonExpire'}) {
 if ($parts[1]>4.0) {      my $line='';
     $errors++;      if (open(PROBE,$fname)) {
 } elsif ($parts[1]>2.0) {   $line=<PROBE>;
     $warnings++;   close(PROBE);
 } elsif ($parts[1]>1.0) {      }
     $notices++;      unless ($line=~/^CHECKOUTTOKEN\&/) {
 }   $cleaned++;
    unlink("$fname");
 print $fh "<h3>df</h3>";      } else {
 print $fh "<pre>";   if ($since>365*$perlvar{'lonExpire'}) {
       $cleaned++;
 open (DFH,"df|");      unlink("$fname");
 while ($line=<DFH>) {    } else { $old++; }
    print $fh "$line";       }
    @parts=split(/\s+/,$line);   }
    $usage=$parts[4];      }
    $usage=~s/\W//g;      &log($fh,"Cleaned up ".$cleaned." files (".$old." old checkout tokens).");
    if ($usage>90) {   
       $warnings++;  
       $notices++;   
    } elsif ($usage>80) {  
       $warnings++;  
    } elsif ($usage>60) {  
       $notices++;  
    }  
    if ($usage>95) { $warnings++; $warnings++; $simplestatus{'diskfull'}++; }  
 }  
 close (DFH);  
 print $fh "</pre>";  
   
   
 print $fh "<h3>ps</h3>";  
 print $fh "<pre>";  
 $psproc=0;  
   
 open (PSH,"ps -aux|");  
 while ($line=<PSH>) {   
    print $fh "$line";   
    $psproc++;  
 }  }
 close (PSH);  
 print $fh "</pre>";  
   
 if ($psproc>200) { $notices++; }  # ------------------------------------------------------------ clean out lonIDs
 if ($psproc>250) { $notices++; }  sub clean_lonIDs {
       my ($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);
    my $now=time;
    my $since=$now-$mtime;
    if ($since>$perlvar{'lonExpire'}) {
       $cleaned++;
       &log($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>");
   }
   
 &errout($fh);  
   
 # --------------------------------------------------------------- clean out tmp  # ----------------------------------------------------------------------- httpd
 print $fh '<hr><a name="tmp"><h2>Temporary Files</h2>';  sub check_httpd_logs {
 $cleaned=0;      my ($fh)=@_;
 $old=0;      &log($fh,'<hr /><a name="httpd" /><h2>httpd</h2><h3>Access Log</h3><pre>');
 while ($fname=<$perlvar{'lonDaemons'}/tmp/*>) {  
                           my ($dev,$ino,$mode,$nlink,  
                               $uid,$gid,$rdev,$size,  
                               $atime,$mtime,$ctime,  
                               $blksize,$blocks)=stat($fname);  
                           $now=time;  
                           $since=$now-$mtime;  
                           if ($since>$perlvar{'lonExpire'}) {  
                               $line='';  
                               if (open(PROBE,$fname)) {  
   $line=<PROBE>;  
                                   close(PROBE);  
       }  
       unless ($line=~/^CHECKOUTTOKEN\&/) {  
                                  $cleaned++;  
                                  unlink("$fname");  
       } else {  
   if ($since>365*$perlvar{'lonExpire'}) {  
                                      $cleaned++;  
                                      unlink("$fname");  
  } else { $old++; }  
                               }  
                           }  
           
       open (DFH,"tail -n25 /etc/httpd/logs/access_log|");
       while (my $line=<DFH>) { &log($fh,&encode_entities($line,'<>&"')) };
       close (DFH);
   
       &log($fh,"</pre><h3>Error Log</h3><pre>");
   
       open (DFH,"tail -n25 /etc/httpd/logs/error_log|");
       while (my $line=<DFH>) { 
    &log($fh,"$line");
    if ($line=~/\[error\]/) { $notices++; } 
       }
       close (DFH);
       &log($fh,"</pre>");
       &errout($fh);
 }  }
 print $fh "Cleaned up ".$cleaned." files (".$old." old checkout tokens).";  
   
 # ------------------------------------------------------------ clean out lonIDs  # ---------------------------------------------------------------------- lonnet
 print $fh '<hr><a name="tokens"><h2>Session Tokens</h2>';  
 $cleaned=0;  sub rotate_lonnet_logs {
 $active=0;      my ($fh)=@_;
 while ($fname=<$perlvar{'lonIDsDir'}/*>) {      &log($fh,'<hr /><a name="lonnet" /><h2>lonnet</h2><h3>Temp Log</h3><pre>');
                           my ($dev,$ino,$mode,$nlink,      print "checking logs\n";
                               $uid,$gid,$rdev,$size,      if (-e "$perlvar{'lonDaemons'}/logs/lonnet.log"){
                               $atime,$mtime,$ctime,   open (DFH,"tail -n50 $perlvar{'lonDaemons'}/logs/lonnet.log|");
                               $blksize,$blocks)=stat($fname);   while (my $line=<DFH>) { 
                           $now=time;      &log($fh,&encode_entities($line,'<>&"'));
                           $since=$now-$mtime;   }
                           if ($since>$perlvar{'lonExpire'}) {   close (DFH);
                               $cleaned++;      }
                               print $fh "Unlinking $fname<br>";      &log($fh,"</pre><h3>Perm Log</h3><pre>");
                               unlink("$fname");  
                           } else {  
                               $active++;  
                           }  
           
 }      if (-e "$perlvar{'lonDaemons'}/logs/lonnet.perm.log") {
 print $fh "<p>Cleaned up ".$cleaned." stale session token(s).";   open(DFH,"tail -n10 $perlvar{'lonDaemons'}/logs/lonnet.perm.log|");
 print $fh "<h3>$active open session(s)</h3>";   while (my $line=<DFH>) { 
       &log($fh,&encode_entities($line,'<>&"'));
    }
    close (DFH);
       } else { &log($fh,"No perm log\n") }
   
 # ----------------------------------------------------------------------- httpd      my $fname="$perlvar{'lonDaemons'}/logs/lonnet.log";
   
 print $fh '<hr><a name="httpd"><h2>httpd</h2><h3>Access Log</h3><pre>';      my ($dev,$ino,$mode,$nlink,
    $uid,$gid,$rdev,$size,
    $atime,$mtime,$ctime,
    $blksize,$blocks)=stat($fname);
   
 open (DFH,"tail -n25 /etc/httpd/logs/access_log|");      if ($size>40000) {
 while ($line=<DFH>) { print $fh "$line" };   &log($fh,"<p>Rotating logs ...</p>");
 close (DFH);   rename("$fname.2","$fname.3");
    rename("$fname.1","$fname.2");
    rename("$fname","$fname.1");
       }
   
 print $fh "</pre><h3>Error Log</h3><pre>";      &log($fh,"</pre>");
       &errout($fh);
   }
   
 open (DFH,"tail -n25 /etc/httpd/logs/error_log|");  # ----------------------------------------------------------------- Connections
 while ($line=<DFH>) {   sub test_connections {
    print $fh "$line";      my ($fh,$hostname)=@_;
    if ($line=~/\[error\]/) { $notices++; }       &log($fh,'<hr /><a name="connections" /><h2>Connections</h2>');
 };      print "testing connections\n";
 close (DFH);      &log($fh,"<table border='2'>");
 print $fh "</pre>";      my ($good,$bad)=(0,0);
 &errout($fh);      foreach my $tryserver (sort(keys(%{$hostname}))) {
    print(".");
    my $result;
    my $answer=&reply("ping",$tryserver,$hostname);
    if ($answer eq "$tryserver:$perlvar{'lonHostID'}") {
       $result="<b>ok</b>";
       $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,"<tr><td>$tryserver</td><td>$result</td></tr>\n");
       }
       &log($fh,"</table>");
       print "\n$good good, $bad bad connections\n";
       &errout($fh);
   }
   
   
 # ---------------------------------------------------------------------- lonsql  # ------------------------------------------------------------ Delayed messages
   sub check_delayed_msg {
       my ($fh,$hostname)=@_;
       &log($fh,'<hr /><a name="delayed" /><h2>Delayed Messages</h2>');
       print "checking buffers\n";
       
       &log($fh,'<h3>Scanning Permanent Log</h3>');
   
 &checkon_daemon($fh,'lonsql',200000);      my $unsend=0;
   
 # ------------------------------------------------------------------------ lond      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++; }
       }
   
 &checkon_daemon($fh,'lond',40000,1);      &log($fh,"<p>Total unsend messages: <b>$unsend</b></p>\n");
       $warnings=$warnings+5*$unsend;
   
 # ------------------------------------------------------------------------ lonc      if ($unsend) { $simplestatus{'unsend'}=$unsend; }
       &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 (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 $answer=&reply("pong",$tryserver,$hostname);
    &log($fh,"Pong to $tryserver: $answer<br />");
       }
   }
   
 &checkon_daemon($fh,'lonc',40000,1);  sub finish_logging {
       my ($fh)=@_;
       &log($fh,"<a name='errcount' />\n");
       $totalcount=$notices+4*$warnings+100*$errors;
       &errout($fh);
       &log($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;
   }
   
 # -------------------------------------------------------------------- lonhttpd  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();
   }
   
 &checkon_daemon($fh,'lonhttpd',40000);  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"; 
   
 # ---------------------------------------------------------------------- lonnet      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 $fh '<hr><a name="lonnet"><h2>lonnet</h2><h3>Temp Log</h3><pre>';  sub usage {
 print "checking logs\n";      print(<<USAGE);
 if (-e "$perlvar{'lonDaemons'}/logs/lonnet.log"){  loncron - housekeeping program that checks up on various parts of Lon-CAPA
 open (DFH,"tail -n50 $perlvar{'lonDaemons'}/logs/lonnet.log|");  
 while ($line=<DFH>) {   Options:
     print $fh "$line";     --help     Display help
 };     --oldlonc  When starting the lonc daemon use 'lonc' not 'loncnew'
 close (DFH);     --noemail  Do not send the status email
 }     --justcheckconnections  Only check the current status of the lonc/d
 print $fh "</pre><h3>Perm Log</h3><pre>";                                  connections, do not send emails do not
                                   check if the daemons are running, do not
 if (-e "$perlvar{'lonDaemons'}/logs/lonnet.perm.log") {                                  generate lon-status
     open(DFH,"tail -n10 $perlvar{'lonDaemons'}/logs/lonnet.perm.log|");     --justcheckdaemons      Only check that all of the Lon-CAPA daemons are
 while ($line=<DFH>) {                                   running, do not send emails do not
    print $fh "$line";                                  check the lonc/d connections, do not
 };                                  generate lon-status
 close (DFH);     --justreload            Only tell the daemons to reload the config files,
 } else { print $fh "No perm log\n" }   do not send emails do not
                                   check if the daemons are running, do not
 $fname="$perlvar{'lonDaemons'}/logs/lonnet.log";                                  generate lon-status
                              
                           my ($dev,$ino,$mode,$nlink,  USAGE
                               $uid,$gid,$rdev,$size,  
                               $atime,$mtime,$ctime,  
                               $blksize,$blocks)=stat($fname);  
   
 if ($size>40000) {  
     print $fh "Rotating logs ...<p>";  
     rename("$fname.2","$fname.3");  
     rename("$fname.1","$fname.2");  
     rename("$fname","$fname.1");  
 }  }
   
 print $fh "</pre>";  # ================================================================ Main Program
 &errout($fh);  sub main () {
 # ----------------------------------------------------------------- Connections      my ($oldlonc,$help,$justcheckdaemons,$noemail,$justcheckconnections,
    $justreload);
       &GetOptions("help"                 => \$help,
    "oldlonc"              => \$oldlonc,
    "justcheckdaemons"     => \$justcheckdaemons,
    "noemail"              => \$noemail,
    "justcheckconnections" => \$justcheckconnections,
    "justreload"           => \$justreload
    );
       if ($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
   
 print $fh '<hr><a name="connections"><h2>Connections</h2>';  # --------------------------------------- Make sure that LON-CAPA is configured
 print "testing connections\n";  # I only test for one thing here (lonHostID).  This is just a safeguard.
 print $fh "<table border=2>";      if ('{[[[[lonHostID]]]]}' eq $perlvar{'lonHostID'}) {
 foreach $tryserver (sort(keys(%hostname))) {   print("Unconfigured machine.\n");
     print(".");   my $emailto=$perlvar{'lonSysEMail'};
     $answer=reply("pong",$tryserver);   my $hostname=`/bin/hostname`;
     if ($answer eq "$tryserver:$perlvar{'lonHostID'}") {   chop $hostname;
  $result="<b>ok</b>";   $hostname=~s/[^\w\.]//g; # make sure is safe to pass through shell
     } else {   my $subj="LON: Unconfigured machine $hostname";
         $result=$answer;   system("echo 'Unconfigured machine $hostname.' |\
         $warnings++;   mailto $emailto -s '$subj' > /dev/null");
         if ($answer eq 'con_lost') { $warnings++; }   exit 1;
     }      }
     if ($answer =~ /con_lost/) { print(" $tryserver down\n"); }  
     print $fh "<tr><td>$tryserver</td><td>$result</td></tr>\n";  
   
 }  # ----------------------------- Make sure this process is running from user=www
 print $fh "</table>";      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;
       }
   
 &errout($fh);  # ------------------------------------------------------------- Read hosts file
 # ------------------------------------------------------------ Delayed messages      my $config=IO::File->new("$perlvar{'lonTabDir'}/hosts.tab");
       
       my (%hostname,%hostdom,%hostrole,%spareid);
       while (my $configline=<$config>) {
    next if ($configline =~ /^(\#|\s*\$)/);
    my ($id,$domain,$role,$name)=split(/:/,$configline);
    if ($id && $domain && $role && $name) {
       $name=~s/\s//g;
       $hostname{$id}=$name;
       $hostdom{$id}=$domain;
       $hostrole{$id}=$role;
    }
       }
       undef $config;
   
 print $fh '<hr><a name="delayed"><h2>Delayed Messages</h2>';  # ------------------------------------------------------ Read spare server file
 print "checking buffers\n";      $config=IO::File->new("$perlvar{'lonTabDir'}/spare.tab");
       
       while (my $configline=<$config>) {
    chomp($configline);
    if (($configline) && ($configline ne $perlvar{'lonHostID'})) {
       $spareid{$configline}=1;
    }
       }
       undef $config;
   
 print $fh '<h3>Scanning Permanent Log</h3>';  # ---------------------------------------------------------------- Start report
   
 $unsend=0;      $errors=0;
 {      $warnings=0;
     my $dfh=IO::File->new("$perlvar{'lonDaemons'}/logs/lonnet.perm.log");      $notices=0;
     while ($line=<$dfh>) {  
  ($time,$sdf,$dserv,$dcmd)=split(/:/,$line);  
         if ($sdf eq 'F') {       my $fh;
     $local=localtime($time);      if (!$justcheckdaemons && !$justcheckconnections && !$justreload) {
             print $fh "<b>Failed: $time, $dserv, $dcmd</b><br>";   $fh=&start_logging(\%hostdom,\%hostrole,\%hostname,\%spareid);
             $warnings++;  
         }   &log_machine_info($fh);
         if ($sdf eq 'S') { $unsend--; }   &clean_tmp($fh);
         if ($sdf eq 'D') { $unsend++; }   &clean_lonIDs($fh);
     }   &check_httpd_logs($fh);
 }   &rotate_lonnet_logs($fh);
 print $fh "Total unsend messages: <b>$unsend</b><p>\n";      }
 $warnings=$warnings+5*$unsend;      if (!$justcheckconnections && !$justreload) {
    &checkon_daemon($fh,'lonsql',200000);
 if ($unsend) { $simplestatus{'unsend'}=$unsend; }   if ( &checkon_daemon($fh,'lond',40000,'USR1') eq 'running') {
 print $fh "<h3>Outgoing Buffer</h3>";      &checkon_daemon($fh,'lond',40000,'USR2');
    }
 open (DFH,"ls -lF $perlvar{'lonSockDir'}/delayed|");   my $args='new';
 while ($line=<DFH>) {    if ($oldlonc) { $args = ''; }
     print $fh "$line<br>";   &checkon_daemon($fh,'lonc',40000,'USR1',$args);
 };   &checkon_daemon($fh,'lonhttpd',40000);
 close (DFH);   &checkon_daemon($fh,'lonmemcached',40000);
       }
 # ------------------------------------------------------------------------- End      if ($justreload) {
 print $fh "<a name=errcount>\n";   &checkon_daemon($fh,'lond',40000,'USR2');
 $totalcount=$notices+4*$warnings+100*$errors;   my $args='new';
 &errout($fh);   if ($oldlonc) { $args = ''; }
 print $fh "<h1>Total Error Count: $totalcount</h1>";   &checkon_daemon($fh,'lonc',40000,'USR2',$args);
 $now=time;      }
 $date=localtime($now);      if ($justcheckconnections) {
 print $fh "<hr>$date ($now)</body></html>\n";   &test_connections($fh,\%hostname);
 print "lon-status webpage updated\n";      }
 $fh->close();      if (!$justcheckdaemons && !$justcheckconnections && !$justreload) {
 }   &check_delayed_msg($fh,\%hostname);
 if ($errors) { $simplestatus{'errors'}=$errors; }   &finish_logging($fh);
 if ($warnings) { $simplestatus{'warnings'}=$warnings; }   &log_simplestatus();
 if ($notices) { $simplestatus{'notices'}=$notices; }  
 $simplestatus{'time'}=time;   if ($totalcount>200 && !$noemail) { &send_mail(); }
       }
 rename ("$statusdir/newstatus.html","$statusdir/index.html");  
 {  
 my $sfh=IO::File->new(">$statusdir/loncron_simple.txt");  
 foreach (keys %simplestatus) {  
     print $sfh $_.'='.$simplestatus{$_}.'&';  
 }  
 print $sfh "\n";  
 $sfh->close();  
 }  
 if ($totalcount>200) {  
    print "sending mail\n";  
    $emailto="$perlvar{'lonAdmEMail'}";  
    if ($totalcount>1000) {  
       $emailto.=",$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");  
 }  }
   
   &main();
 1;  1;
   
   
Removed from v.1.42  
changed lines
  Added in v.1.69

FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>