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Diff for /loncom/loncron between versions 1.8 and 1.29

version 1.8, 2000/12/08 22:08:57 version 1.29, 2002/05/27 19:21:59
Line 9 Line 9
 #  #
 # 7/14,7/15,7/19,7/21,7/22,11/18,  # 7/14,7/15,7/19,7/21,7/22,11/18,
 # 2/8 Gerd Kortemeyer  # 2/8 Gerd Kortemeyer
   # 12/6/2000,12/8 Scott Harrison
   # 12/23 Gerd Kortemeyer
   # YEAR=2001
   # 1/10/2001, 2/12/, 2/26, 3/15, 04/11, 04/21,8/27 Scott Harrison
   # 09/04,09/06,11/26 Gerd Kortemeyer
   # YEAR=2002
   # 5/11/2002 Scott Harrison
   
   $|=1;
   
   use lib '/home/httpd/lib/perl/';
   use LONCAPA::Configuration;
   
 use IO::File;  use IO::File;
 use IO::Socket;  use IO::Socket;
Line 43  ENDERROUT Line 55  ENDERROUT
   
 # ================================================================ Main Program  # ================================================================ Main Program
   
   # --------------------------------- Read loncapa_apache.conf and loncapa.conf
 # ------------------------------------------------------------ Read access.conf  my $perlvarref=LONCAPA::Configuration::read_conf('loncapa_apache.conf',
 {                                                   'loncapa.conf');
     my $config=IO::File->new("/etc/httpd/conf/access.conf");  %perlvar=%{$perlvarref};
   undef $perlvarref;
     while (my $configline=<$config>) {  delete $perlvar{'lonReceipt'}; # remove since sensitive and not needed
         if ($configline =~ /PerlSetVar/) {  delete $perlvar{'lonSqlAccess'}; # remove since sensitive and not needed
    my ($dummy,$varname,$varvalue)=split(/\s+/,$configline);  
            $perlvar{$varname}=$varvalue;  # --------------------------------------- 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  # ------------------------------------------------------------- Read hosts file
Line 110  print $fh (<<ENDHEADERS); Line 142  print $fh (<<ENDHEADERS);
 <ol>  <ol>
 <li><a href="#configuration">Configuration</a>  <li><a href="#configuration">Configuration</a>
 <li><a href="#machine">Machine Information</a>  <li><a href="#machine">Machine Information</a>
   <li><a href="#tmp">Temporary Files</a>
   <li><a href="#tokens">Session Tokens</a>
 <li><a href="#httpd">httpd</a>  <li><a href="#httpd">httpd</a>
   <li><a href="#lonsql">lonsql</a>
 <li><a href="#lond">lond</a>  <li><a href="#lond">lond</a>
 <li><a href="#lonc">lonc</a>  <li><a href="#lonc">lonc</a>
 <li><a href="#lonnet">lonnet</a>  <li><a href="#lonnet">lonnet</a>
Line 171  while ($line=<DFH>) { Line 206  while ($line=<DFH>) {
    $usage=$parts[4];     $usage=$parts[4];
    $usage=~s/\W//g;     $usage=~s/\W//g;
    if ($usage>90) {      if ($usage>90) { 
       $warnings++;         $warnings++;
         $notices++; 
    } elsif ($usage>80) {     } elsif ($usage>80) {
       $warnings++;        $warnings++;
    } elsif ($usage>60) {     } elsif ($usage>60) {
Line 181  while ($line=<DFH>) { Line 217  while ($line=<DFH>) {
 }  }
 close (DFH);  close (DFH);
 print $fh "</pre>";  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) { $notices++; }
   if ($psproc>250) { $notices++; }
   
 &errout($fh);  &errout($fh);
   
   # --------------------------------------------------------------- clean out tmp
   print $fh '<hr><a name="tmp"><h2>Temporary Files</h2>';
   $cleaned=0;
   $old=0;
   while ($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 ($since>100*$perlvar{'lonExpire'}) {
                                        $cleaned++;
                                        unlink("$fname");
    } else { $old++; }
                                 }
                             }
       
   }
   print $fh "Cleaned up ".$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=<$perlvar{'lonIDsDir'}/*>) {
                             my ($dev,$ino,$mode,$nlink,
                                 $uid,$gid,$rdev,$size,
                                 $atime,$mtime,$ctime,
                                 $blksize,$blocks)=stat($fname);
                             $now=time;
                             $since=$now-$mtime;
                             if ($since>$perlvar{'lonExpire'}) {
                                 $cleaned++;
                                 print $fh "Unlinking $fname<br>";
                                 unlink("$fname");
                             } else {
                                 $active++;
                             }
       
   }
   print $fh "<p>Cleaned up ".$cleaned." stale session token(s).";
   print $fh "<h3>$active open session(s)</h3>";
   
 # ----------------------------------------------------------------------- httpd  # ----------------------------------------------------------------------- httpd
   
 print $fh '<hr><a name="httpd"><h2>httpd</h2><h3>Access Log</h3><pre>';  print $fh '<hr><a name="httpd"><h2>httpd</h2><h3>Access Log</h3><pre>';
   
 open (DFH,"tail -n40 /etc/httpd/logs/access_log|");  open (DFH,"tail -n25 /etc/httpd/logs/access_log|");
 while ($line=<DFH>) { print $fh "$line" };  while ($line=<DFH>) { print $fh "$line" };
 close (DFH);  close (DFH);
   
 print $fh "</pre><h3>Error Log</h3><pre>";  print $fh "</pre><h3>Error Log</h3><pre>";
   
 open (DFH,"tail -n50 /etc/httpd/logs/error_log|");  open (DFH,"tail -n25 /etc/httpd/logs/error_log|");
 while ($line=<DFH>) {   while ($line=<DFH>) { 
    print $fh "$line";     print $fh "$line";
    if ($line=~/\[error\]/) { $notices++; }      if ($line=~/\[error\]/) { $notices++; } 
Line 202  print $fh "</pre>"; Line 310  print $fh "</pre>";
 &errout($fh);  &errout($fh);
   
   
 # ------------------------------------------------------------------------ lonsql  # ---------------------------------------------------------------------- lonsql
   
 if ($perlvar{'lonRole'} eq "library" && 1==0) {  my $restartflag=1;
   if ($perlvar{'lonRole'} eq "library") {
   
     print $fh '<hr><a name="lond"><h2>lonsql</h2><h3>Log</h3><pre>';      print $fh '<hr><a name="lonsql"><h2>lonsql</h2><h3>Log</h3><pre>';
           print "lonsql\n";
     if (-e "$perlvar{'lonDaemons'}/logs/lonsql.log"){      if (-e "$perlvar{'lonDaemons'}/logs/lonsql.log"){
  open (DFH,"tail -n100 $perlvar{'lonDaemons'}/logs/lonsql.log|");   open (DFH,"tail -n100 $perlvar{'lonDaemons'}/logs/lonsql.log|");
  while ($line=<DFH>) {    while ($line=<DFH>) { 
Line 221  if ($perlvar{'lonRole'} eq "library" && Line 330  if ($perlvar{'lonRole'} eq "library" &&
     print $fh "</pre>";      print $fh "</pre>";
           
     my $lonsqlfile="$perlvar{'lonDaemons'}/logs/lonsql.pid";      my $lonsqlfile="$perlvar{'lonDaemons'}/logs/lonsql.pid";
        
       $restartflag=1;
      
     if (-e $lonsqlfile) {      if (-e $lonsqlfile) {
  my $lfh=IO::File->new("$lonsqlfile");   my $lfh=IO::File->new("$lonsqlfile");
  my $lonsqlpid=<$lfh>;   my $lonsqlpid=<$lfh>;
  chomp($lonsqlpid);   chomp($lonsqlpid);
  if (kill 0 => $lonsqlpid) {   if (kill 0 => $lonsqlpid) {
     print $fh "<h3>lonsql at pid $lonsqlpid responding</h3>";      print $fh "<h3>lonsql at pid $lonsqlpid responding</h3>";
       $restartflag=0;
  } else {   } else {
     $errors++; $errors++;      $errors++; $errors++;
     print $fh "<h3>lonsql at pid $lonsqlpid not responding</h3>";      print $fh "<h3>lonsql at pid $lonsqlpid not responding</h3>";
    $restartflag=1;
    print $fh 
       "<h3>Decided to clean up stale .pid file and restart lonsql</h3>";
  }   }
     } else {      }
       if ($restartflag==1) {
  $errors++;   $errors++;
            print $fh '<br><font color="red">Killall lonsql: '.
                       system('killall lonsql').' - ';
                       sleep 60;
                       print $fh unlink($lonsqlfile).' - '.
                                 system('killall -9 lonsql').
                       '</font><br>';
  print $fh "<h3>lonsql not running, trying to start</h3>";   print $fh "<h3>lonsql not running, trying to start</h3>";
  system("$perlvar{'lonDaemons'}/lonsql");   system(
  sleep 120;   "$perlvar{'lonDaemons'}/lonsql 2>>$perlvar{'lonDaemons'}/logs/lonsql_errors");
    sleep 10;
  if (-e $lonsqlfile) {   if (-e $lonsqlfile) {
     print $fh "Seems like it started ...<p>";      print $fh "Seems like it started ...<p>";
     my $lfh=IO::File->new("$lonsqlfile");      my $lfh=IO::File->new("$lonsqlfile");
Line 249  if ($perlvar{'lonRole'} eq "library" && Line 372  if ($perlvar{'lonRole'} eq "library" &&
  $errors++; $errors++;   $errors++; $errors++;
  print $fh "<h3>lonsql at pid $lonsqlpid not responding</h3>";   print $fh "<h3>lonsql at pid $lonsqlpid not responding</h3>";
  print $fh "Give it one more try ...<p>";   print $fh "Give it one more try ...<p>";
  system("$perlvar{'lonDaemons'}/lonsql");   system(
  sleep 120;   "$perlvar{'lonDaemons'}/lonsql 2>>$perlvar{'lonDaemons'}/logs/lonsql_errors");
    sleep 10;
     }      }
  } else {   } else {
     print $fh "Seems like that did not work!<p>";      print $fh "Seems like that did not work!<p>";
Line 288  if ($perlvar{'lonRole'} eq "library" && Line 412  if ($perlvar{'lonRole'} eq "library" &&
 # ------------------------------------------------------------------------ lond  # ------------------------------------------------------------------------ lond
   
 print $fh '<hr><a name="lond"><h2>lond</h2><h3>Log</h3><pre>';  print $fh '<hr><a name="lond"><h2>lond</h2><h3>Log</h3><pre>';
   print "lond\n";
   
 if (-e "$perlvar{'lonDaemons'}/logs/lond.log"){  if (-e "$perlvar{'lonDaemons'}/logs/lond.log"){
 open (DFH,"tail -n100 $perlvar{'lonDaemons'}/logs/lond.log|");  open (DFH,"tail -n25 $perlvar{'lonDaemons'}/logs/lond.log|");
 while ($line=<DFH>) {   while ($line=<DFH>) { 
    print $fh "$line";     print $fh "$line";
    if ($line=~/INFO/) { $notices++; }     if ($line=~/INFO/) { $notices++; }
Line 303  print $fh "</pre>"; Line 428  print $fh "</pre>";
   
 my $londfile="$perlvar{'lonDaemons'}/logs/lond.pid";  my $londfile="$perlvar{'lonDaemons'}/logs/lond.pid";
   
 my $restartflag=1;  $restartflag=1;
 if (-e $londfile) {      if (-e $londfile) {    
    my $lfh=IO::File->new("$londfile");     my $lfh=IO::File->new("$londfile");
    my $londpid=<$lfh>;     my $londpid=<$lfh>;
    chomp($londpid);     chomp($londpid);
    if (kill 0 => $londpid) {     if (kill 0 => $londpid) {
       print $fh "<h3>lond at pid $londpid responding</h3>";        print $fh "<h3>lond at pid $londpid responding, sending USR1</h3>";
         kill USR1 => $londpid;
       $restartflag=0;        $restartflag=0;
    } else {     } else {
       $errors++;        $errors++;
       print $fh "<h3>lond at pid $londpid not responding</h3>";        print $fh "<h3>lond at pid $londpid not responding</h3>";
       # Intelligently handle this.        $restartflag=1;
       # Possibility #1: there is no process  
       # Solution: remove .pid file and restart  
       if (getpgrp($londpid)==-1) {  
   unlink($londfile);  
   $restartflag=1;  
       }  
       else {  
       # Possibility #2: there is a zombie process  
       # Possibility #3: there is a live process that is not responding  
       #                 for an unknown reason  
       # Solution: kill process, remove .pid and restart  
   kill 2 => $londpid;  
   unlink($londfile);  
   $restartflag=1;  
       }  
       print $fh         print $fh 
   "<h3>Deciding to clean up stale .pid file and restart lond</h3>";    "<h3>Decided to clean up stale .pid file and restart lond</h3>";
    }     }
 }   } 
 if ($restartflag==1) {  if ($restartflag==1) {
    $errors++;     $errors++;
     print $fh '<br><font color="red">Killall lond: '.
                       system('killall lond').' - ';
             sleep 60;
             print $fh unlink($londfile).' - '.system('killall -9 lond').
                       '</font><br>';
    print $fh "<h3>lond not running, trying to start</h3>";     print $fh "<h3>lond not running, trying to start</h3>";
    system("$perlvar{'lonDaemons'}/lond");     system(
    sleep 120;       "$perlvar{'lonDaemons'}/lond 2>>$perlvar{'lonDaemons'}/logs/lond_errors");
      sleep 10;
    if (-e $londfile) {     if (-e $londfile) {
        print $fh "Seems like it started ...<p>";         print $fh "Seems like it started ...<p>";
        my $lfh=IO::File->new("$londfile");         my $lfh=IO::File->new("$londfile");
Line 351  if ($restartflag==1) { Line 468  if ($restartflag==1) {
           $errors++; $errors++;            $errors++; $errors++;
           print $fh "<h3>lond at pid $londpid not responding</h3>";            print $fh "<h3>lond at pid $londpid not responding</h3>";
           print $fh "Give it one more try ...<p>";            print $fh "Give it one more try ...<p>";
           system("$perlvar{'lonDaemons'}/lond");    system(
           sleep 120;   "$perlvar{'lonDaemons'}/lond 2>>$perlvar{'lonDaemons'}/logs/lond_errors");
             sleep 10;
        }         }
    } else {     } else {
        print $fh "Seems like that did not work!<p>";         print $fh "Seems like that did not work!<p>";
Line 389  if ($size>40000) { Line 507  if ($size>40000) {
 # ------------------------------------------------------------------------ lonc  # ------------------------------------------------------------------------ lonc
   
 print $fh '<hr><a name="lonc"><h2>lonc</h2><h3>Log</h3><pre>';  print $fh '<hr><a name="lonc"><h2>lonc</h2><h3>Log</h3><pre>';
   print "lonc\n";
   
 if (-e "$perlvar{'lonDaemons'}/logs/lonc.log"){  if (-e "$perlvar{'lonDaemons'}/logs/lonc.log"){
 open (DFH,"tail -n100 $perlvar{'lonDaemons'}/logs/lonc.log|");  open (DFH,"tail -n25 $perlvar{'lonDaemons'}/logs/lonc.log|");
 while ($line=<DFH>) {   while ($line=<DFH>) { 
    print $fh "$line";     print $fh "$line";
    if ($line=~/INFO/) { $notices++; }     if ($line=~/INFO/) { $notices++; }
Line 416  if (-e $loncfile) { Line 535  if (-e $loncfile) {
    } else {     } else {
       $errors++;        $errors++;
       print $fh "<h3>lonc at pid $loncpid not responding</h3>";        print $fh "<h3>lonc at pid $loncpid not responding</h3>";
       # Intelligently handle this.        # Solution: kill parent and children processes, remove .pid and restart
       # Possibility #1: there is no process  
       # Solution: remove .pid file and restart  
       if (getpgrp($loncpid)==-1) {  
   unlink($loncfile);  
   $restartflag=1;    $restartflag=1;
       }  
       else {  
       # Possibility #2: there is a zombie process  
       # Possibility #3: there is a live process that is not responding  
       #                 for an unknown reason  
       # Solution: kill process, remove .pid and restart  
   kill 2 => $loncpid;  
   unlink($loncfile);  
   $restartflag=1;  
       }  
       print $fh         print $fh 
   "<h3>Deciding to clean up stale .pid file and restart lonc</h3>";    "<h3>Decided to clean up stale .pid file and restart lonc</h3>";
    }     }
 }   } 
 if ($restartflag==1) {  if ($restartflag==1) {
    $errors++;     $errors++;
     print $fh '<br><font color="red">Killall lonc: '.
               system('killall lonc').' - ';
             sleep 60;
             print $fh unlink($loncfile).' - '.system('killall -9 lonc').
                       '</font><br>';
    print $fh "<h3>lonc not running, trying to start</h3>";     print $fh "<h3>lonc not running, trying to start</h3>";
    system("$perlvar{'lonDaemons'}/lonc");   system(
    sleep 120;   "$perlvar{'lonDaemons'}/lonc 2>>$perlvar{'lonDaemons'}/logs/lonc_errors");
      sleep 10;
    if (-e $loncfile) {     if (-e $loncfile) {
        print $fh "Seems like it started ...<p>";         print $fh "Seems like it started ...<p>";
        my $lfh=IO::File->new("$loncfile");         my $lfh=IO::File->new("$loncfile");
Line 453  if ($restartflag==1) { Line 564  if ($restartflag==1) {
           $errors++; $errors++;            $errors++; $errors++;
           print $fh "<h3>lonc at pid $loncpid not responding</h3>";            print $fh "<h3>lonc at pid $loncpid not responding</h3>";
           print $fh "Give it one more try ...<p>";            print $fh "Give it one more try ...<p>";
           system("$perlvar{'lonDaemons'}/lonc");     system(
           sleep 120;   "$perlvar{'lonDaemons'}/lonc 2>>$perlvar{'lonDaemons'}/logs/lonc_errors");
             sleep 10;
        }         }
    } else {     } else {
        print $fh "Seems like that did not work!<p>";         print $fh "Seems like that did not work!<p>";
Line 492  if ($size>40000) { Line 604  if ($size>40000) {
 # ---------------------------------------------------------------------- lonnet  # ---------------------------------------------------------------------- lonnet
   
 print $fh '<hr><a name="lonnet"><h2>lonnet</h2><h3>Temp Log</h3><pre>';  print $fh '<hr><a name="lonnet"><h2>lonnet</h2><h3>Temp Log</h3><pre>';
   print "lonnet\n";
 if (-e "$perlvar{'lonDaemons'}/logs/lonnet.log"){  if (-e "$perlvar{'lonDaemons'}/logs/lonnet.log"){
 open (DFH,"tail -n50 $perlvar{'lonDaemons'}/logs/lonnet.log|");  open (DFH,"tail -n50 $perlvar{'lonDaemons'}/logs/lonnet.log|");
 while ($line=<DFH>) {   while ($line=<DFH>) { 
Line 499  while ($line=<DFH>) { Line 612  while ($line=<DFH>) {
 };  };
 close (DFH);  close (DFH);
 }  }
 print $fh "</pre><h3>Perm Log</h3>";  print $fh "</pre><h3>Perm Log</h3><pre>";
   
 if (-e "$perlvar{'lonDaemons'}/logs/lonnet.perm.log") {  if (-e "$perlvar{'lonDaemons'}/logs/lonnet.perm.log") {
     open(DFH,"tail -n10 $perlvar{'lonDaemons'}/logs/lonnet.perm.log|");      open(DFH,"tail -n10 $perlvar{'lonDaemons'}/logs/lonnet.perm.log|");
Line 549  print $fh "</table>"; Line 662  print $fh "</table>";
 # ------------------------------------------------------------ Delayed messages  # ------------------------------------------------------------ Delayed messages
   
 print $fh '<hr><a name="delayed"><h2>Delayed Messages</h2>';  print $fh '<hr><a name="delayed"><h2>Delayed Messages</h2>';
   print "buffers\n";
   
 print $fh '<h3>Scanning Permanent Log</h3>';  print $fh '<h3>Scanning Permanent Log</h3>';
   
Line 585  print $fh "<h1>Total Error Count: $total Line 699  print $fh "<h1>Total Error Count: $total
 $now=time;  $now=time;
 $date=localtime($now);  $date=localtime($now);
 print $fh "<hr>$date ($now)</body></html>\n";  print $fh "<hr>$date ($now)</body></html>\n";
   print "writing done\n";
 }  }
   
 rename ("$statusdir/newstatus.html","$statusdir/index.html");  rename ("$statusdir/newstatus.html","$statusdir/index.html");
   
 if ($totalcount>200) {  if ($totalcount>200) {
      print "mailing\n";
    $emailto="$perlvar{'lonAdmEMail'},$perlvar{'lonSysEMail'}";     $emailto="$perlvar{'lonAdmEMail'},$perlvar{'lonSysEMail'}";
    $subj="LON: $perlvar{'lonHostID'} E:$errors W:$warnings N:$notices";      $subj="LON: $perlvar{'lonHostID'} E:$errors W:$warnings N:$notices"; 
    system(     system(
Removed from v.1.8  
changed lines
  Added in v.1.29

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