Annotation of loncom/loncron, revision 1.27

1.1       albertel    1: #!/usr/bin/perl
                      2: 
                      3: # The LearningOnline Network
                      4: # Housekeeping program, started by cron
                      5: #
                      6: # (TCP networking package
                      7: # 6/1/99,6/2,6/10,6/11,6/12,6/14,6/26,6/28,6/29,6/30,
                      8: # 7/1,7/2,7/9,7/10,7/12 Gerd Kortemeyer)
                      9: #
1.3       www        10: # 7/14,7/15,7/19,7/21,7/22,11/18,
                     11: # 2/8 Gerd Kortemeyer
1.20      harris41   12: # 12/6/2000,12/8 Scott Harrison
1.11      www        13: # 12/23 Gerd Kortemeyer
1.22      harris41   14: # YEAR=2001
                     15: # 1/10/2001, 2/12/, 2/26, 3/15, 04/11, 04/21,8/27 Scott Harrison
1.25      www        16: # 09/04,09/06,11/26 Gerd Kortemeyer
1.26      harris41   17: # YEAR=2002
                     18: # 5/11/2002 Scott Harrison
1.24      www        19: 
                     20: $|=1;
1.1       albertel   21: 
1.26      harris41   22: use lib '/home/httpd/lib/perl/';
                     23: use LONCAPA::Configuration;
                     24: 
1.1       albertel   25: use IO::File;
                     26: use IO::Socket;
                     27: 
                     28: # -------------------------------------------------- Non-critical communication
                     29: sub reply {
                     30:     my ($cmd,$server)=@_;
                     31:     my $peerfile="$perlvar{'lonSockDir'}/$server";
                     32:     my $client=IO::Socket::UNIX->new(Peer    =>"$peerfile",
                     33:                                      Type    => SOCK_STREAM,
                     34:                                      Timeout => 10)
                     35:        or return "con_lost";
                     36:     print $client "$cmd\n";
                     37:     my $answer=<$client>;
                     38:     chomp($answer);
                     39:     if (!$answer) { $answer="con_lost"; }
                     40:     return $answer;
                     41: }
                     42: 
                     43: # --------------------------------------------------------- Output error status
                     44: 
                     45: sub errout {
                     46:    my $fh=shift;
                     47:    print $fh (<<ENDERROUT);
                     48:      <p><table border=2 bgcolor="#CCCCCC">
                     49:      <tr><td>Notices</td><td>$notices</td></tr>
                     50:      <tr><td>Warnings</td><td>$warnings</td></tr>
                     51:      <tr><td>Errors</td><td>$errors</td></tr>
                     52:      </table><p><a href="#top">Top</a><p>
                     53: ENDERROUT
                     54: }
                     55: 
                     56: # ================================================================ Main Program
                     57: 
1.27    ! matthew    58: # --------------------------------- Read loncapa_apache.conf and loncapa.conf
        !            59: my $perlvarref=LONCAPA::Configuration::read_conf('loncapa_apache.conf',
        !            60:                                                  'loncapa.conf');
1.26      harris41   61: my %perlvar=%{$perlvarref};
                     62: undef $perlvarref;
                     63: delete $perlvar{'lonReceipt'}; # remove since sensitive and not needed
                     64: delete $perlvar{'lonSqlAccess'}; # remove since sensitive and not needed
1.13      harris41   65: 
1.14      harris41   66: # --------------------------------------- Make sure that LON-CAPA is configured
                     67: # I only test for one thing here (lonHostID).  This is just a safeguard.
                     68: if ('{[[[[lonHostID]]]]}' eq $perlvar{'lonHostID'}) {
1.15      harris41   69:    print("Unconfigured machine.\n");
1.14      harris41   70:    $emailto=$perlvar{'lonSysEMail'};
                     71:    $hostname=`/bin/hostname`;
                     72:    chop $hostname;
                     73:    $hostname=~s/[^\w\.]//g; # make sure is safe to pass through shell
                     74:    $subj="LON: Unconfigured machine $hostname";
                     75:    system("echo 'Unconfigured machine $hostname.' |\
                     76:  mailto $emailto -s '$subj' > /dev/null");
                     77:     exit 1;
                     78: }
                     79: 
1.13      harris41   80: # ----------------------------- Make sure this process is running from user=www
                     81: my $wwwid=getpwnam('www');
                     82: if ($wwwid!=$<) {
1.14      harris41   83:    print("User ID mismatch.  This program must be run as user 'www'\n");
1.13      harris41   84:    $emailto="$perlvar{'lonAdmEMail'},$perlvar{'lonSysEMail'}";
                     85:    $subj="LON: $perlvar{'lonHostID'} User ID mismatch";
                     86:    system("echo 'User ID mismatch.  loncron must be run as user www.' |\
                     87:  mailto $emailto -s '$subj' > /dev/null");
1.14      harris41   88:    exit 1;
1.1       albertel   89: }
                     90: 
                     91: # ------------------------------------------------------------- Read hosts file
                     92: {
                     93:     my $config=IO::File->new("$perlvar{'lonTabDir'}/hosts.tab");
                     94: 
                     95:     while (my $configline=<$config>) {
                     96:        my ($id,$domain,$role,$name,$ip)=split(/:/,$configline);
                     97:        $hostname{$id}=$name;
                     98:        $hostdom{$id}=$domain;
                     99:        $hostrole{$id}=$role;
                    100:        $hostip{$id}=$ip;
                    101:        if (($role eq 'library') && ($id ne $perlvar{'lonHostID'})) {
                    102: 	   $libserv{$id}=$name;
                    103:        }
                    104:     }
                    105: }
                    106: 
                    107: # ------------------------------------------------------ Read spare server file
                    108: {
                    109:     my $config=IO::File->new("$perlvar{'lonTabDir'}/spare.tab");
                    110: 
                    111:     while (my $configline=<$config>) {
                    112:        chomp($configline);
                    113:        if (($configline) && ($configline ne $perlvar{'lonHostID'})) {
                    114:           $spareid{$configline}=1;
                    115:        }
                    116:     }
                    117: }
                    118: 
                    119: # ---------------------------------------------------------------- Start report
                    120: 
                    121: $statusdir="/home/httpd/html/lon-status";
                    122: 
                    123: $errors=0;
                    124: $warnings=0;
                    125: $notices=0;
                    126: 
                    127: $now=time;
                    128: $date=localtime($now);
                    129: 
                    130: {
                    131: my $fh=IO::File->new(">$statusdir/newstatus.html");
                    132: 
                    133: print $fh (<<ENDHEADERS);
                    134: <html>
                    135: <head>
                    136: <title>LON Status Report $perlvar{'lonHostID'}</title>
                    137: </head>
1.3       www       138: <body bgcolor="#AAAAAA">
1.1       albertel  139: <a name="top">
                    140: <h1>LON Status Report $perlvar{'lonHostID'}</h1>
                    141: <h2>$date ($now)</h2>
                    142: <ol>
                    143: <li><a href="#configuration">Configuration</a>
                    144: <li><a href="#machine">Machine Information</a>
1.11      www       145: <li><a href="#tmp">Temporary Files</a>
                    146: <li><a href="#tokens">Session Tokens</a>
1.1       albertel  147: <li><a href="#httpd">httpd</a>
1.11      www       148: <li><a href="#lonsql">lonsql</a>
1.1       albertel  149: <li><a href="#lond">lond</a>
                    150: <li><a href="#lonc">lonc</a>
                    151: <li><a href="#lonnet">lonnet</a>
                    152: <li><a href="#connections">Connections</a>
                    153: <li><a href="#delayed">Delayed Messages</a>
                    154: <li><a href="#errcount">Error Count</a>
                    155: </ol>
                    156: <hr>
                    157: <a name="configuration">
                    158: <h2>Configuration</h2>
                    159: <h3>PerlVars</h3>
                    160: <table border=2>
                    161: ENDHEADERS
                    162: 
                    163: foreach $varname (keys %perlvar) {
                    164:     print $fh "<tr><td>$varname</td><td>$perlvar{$varname}</td></tr>\n";
                    165: }
                    166: print $fh "</table><h3>Hosts</h3><table border=2>";
                    167: foreach $id (keys %hostname) {
                    168: print $fh 
                    169:     "<tr><td>$id</td><td>$hostdom{$id}</td><td>$hostrole{$id}</td>";
                    170: print $fh "<td>$hostname{$id}</td><td>$hostip{$id}</td></tr>\n";
                    171: }
                    172: print $fh "</table><h3>Spare Hosts</h3><ol>";
                    173: foreach $id (keys %spareid) {
                    174:     print $fh "<li>$id\n";
                    175: }
                    176: 
                    177: print $fh "</ol>\n";
                    178: 
                    179: # --------------------------------------------------------------------- Machine
                    180: 
                    181: print $fh '<hr><a name="machine"><h2>Machine Information</h2>';
                    182: print $fh "<h3>loadavg</h3>";
                    183: 
                    184: open (LOADAVGH,"/proc/loadavg");
                    185: $loadavg=<LOADAVGH>;
                    186: close (LOADAVGH);
                    187: 
                    188: print $fh "<tt>$loadavg</tt>";
                    189: 
                    190: @parts=split(/\s+/,$loadavg);
1.4       www       191: if ($parts[1]>4.0) {
1.1       albertel  192:     $errors++;
                    193: } elsif ($parts[1]>2.0) {
                    194:     $warnings++;
                    195: } elsif ($parts[1]>1.0) {
                    196:     $notices++;
                    197: }
                    198: 
                    199: print $fh "<h3>df</h3>";
                    200: print $fh "<pre>";
                    201: 
                    202: open (DFH,"df|");
                    203: while ($line=<DFH>) { 
                    204:    print $fh "$line"; 
                    205:    @parts=split(/\s+/,$line);
                    206:    $usage=$parts[4];
                    207:    $usage=~s/\W//g;
                    208:    if ($usage>90) { 
1.24      www       209:       $warnings++;
                    210:       $notices++; 
1.1       albertel  211:    } elsif ($usage>80) {
                    212:       $warnings++;
                    213:    } elsif ($usage>60) {
                    214:       $notices++;
                    215:    }
1.4       www       216:    if ($usage>95) { $warnings++; $warnings++ }
1.1       albertel  217: }
                    218: close (DFH);
                    219: print $fh "</pre>";
1.24      www       220: 
                    221: 
                    222: print $fh "<h3>ps</h3>";
                    223: print $fh "<pre>";
                    224: $psproc=0;
                    225: 
                    226: open (PSH,"ps -aux|");
                    227: while ($line=<PSH>) { 
                    228:    print $fh "$line"; 
                    229:    $psproc++;
                    230: }
                    231: close (PSH);
                    232: print $fh "</pre>";
                    233: 
                    234: if ($psproc>200) { $notices++; }
                    235: if ($psproc>250) { $notices++; }
                    236: 
1.1       albertel  237: &errout($fh);
1.11      www       238: 
                    239: # --------------------------------------------------------------- clean out tmp
                    240: print $fh '<hr><a name="tmp"><h2>Temporary Files</h2>';
                    241: $cleaned=0;
                    242: while ($fname=<$perlvar{'lonDaemons'}/tmp/*>) {
                    243:                           my ($dev,$ino,$mode,$nlink,
                    244:                               $uid,$gid,$rdev,$size,
                    245:                               $atime,$mtime,$ctime,
                    246:                               $blksize,$blocks)=stat($fname);
                    247:                           $now=time;
                    248:                           $since=$now-$mtime;
                    249:                           if ($since>$perlvar{'lonExpire'}) {
                    250:                               $cleaned++;
                    251:                               unlink("$fname");
                    252:                           }
                    253:     
                    254: }
                    255: print $fh "Cleaned up ".$cleaned." files.";
                    256: 
                    257: # ------------------------------------------------------------ clean out lonIDs
                    258: print $fh '<hr><a name="tokens"><h2>Session Tokens</h2>';
                    259: $cleaned=0;
                    260: $active=0;
                    261: while ($fname=<$perlvar{'lonIDsDir'}/*>) {
                    262:                           my ($dev,$ino,$mode,$nlink,
                    263:                               $uid,$gid,$rdev,$size,
                    264:                               $atime,$mtime,$ctime,
                    265:                               $blksize,$blocks)=stat($fname);
                    266:                           $now=time;
                    267:                           $since=$now-$mtime;
                    268:                           if ($since>$perlvar{'lonExpire'}) {
                    269:                               $cleaned++;
                    270:                               print $fh "Unlinking $fname<br>";
                    271:                               unlink("$fname");
                    272:                           } else {
                    273:                               $active++;
                    274:                           }
                    275:     
                    276: }
                    277: print $fh "<p>Cleaned up ".$cleaned." stale session token(s).";
                    278: print $fh "<h3>$active open session(s)</h3>";
                    279: 
1.1       albertel  280: # ----------------------------------------------------------------------- httpd
                    281: 
                    282: print $fh '<hr><a name="httpd"><h2>httpd</h2><h3>Access Log</h3><pre>';
                    283: 
1.23      www       284: open (DFH,"tail -n25 /etc/httpd/logs/access_log|");
1.1       albertel  285: while ($line=<DFH>) { print $fh "$line" };
                    286: close (DFH);
                    287: 
                    288: print $fh "</pre><h3>Error Log</h3><pre>";
                    289: 
1.23      www       290: open (DFH,"tail -n25 /etc/httpd/logs/error_log|");
1.1       albertel  291: while ($line=<DFH>) { 
                    292:    print $fh "$line";
                    293:    if ($line=~/\[error\]/) { $notices++; } 
                    294: };
                    295: close (DFH);
                    296: print $fh "</pre>";
                    297: &errout($fh);
1.5       harris41  298: 
                    299: 
1.11      www       300: # ---------------------------------------------------------------------- lonsql
1.22      harris41  301: 
                    302: my $restartflag=1;
1.18      harris41  303: if ($perlvar{'lonRole'} eq "library") {
1.5       harris41  304: 
1.11      www       305:     print $fh '<hr><a name="lonsql"><h2>lonsql</h2><h3>Log</h3><pre>';
1.23      www       306:     print "lonsql\n";
1.5       harris41  307:     if (-e "$perlvar{'lonDaemons'}/logs/lonsql.log"){
                    308: 	open (DFH,"tail -n100 $perlvar{'lonDaemons'}/logs/lonsql.log|");
                    309: 	while ($line=<DFH>) { 
                    310: 	    print $fh "$line";
                    311: 	    if ($line=~/INFO/) { $notices++; }
                    312: 	    if ($line=~/WARNING/) { $notices++; }
                    313: 	    if ($line=~/CRITICAL/) { $warnings++; }
                    314: 	};
                    315: 	close (DFH);
                    316:     }
                    317:     print $fh "</pre>";
                    318:     
                    319:     my $lonsqlfile="$perlvar{'lonDaemons'}/logs/lonsql.pid";
1.23      www       320:  
                    321:     $restartflag=1;
                    322:    
1.5       harris41  323:     if (-e $lonsqlfile) {
                    324: 	my $lfh=IO::File->new("$lonsqlfile");
                    325: 	my $lonsqlpid=<$lfh>;
                    326: 	chomp($lonsqlpid);
                    327: 	if (kill 0 => $lonsqlpid) {
                    328: 	    print $fh "<h3>lonsql at pid $lonsqlpid responding</h3>";
1.22      harris41  329: 	    $restartflag=0;
1.5       harris41  330: 	} else {
                    331: 	    $errors++; $errors++;
                    332: 	    print $fh "<h3>lonsql at pid $lonsqlpid not responding</h3>";
1.22      harris41  333: 		$restartflag=1;
1.23      www       334: 	print $fh 
                    335: 	    "<h3>Decided to clean up stale .pid file and restart lonsql</h3>";
1.5       harris41  336: 	}
1.22      harris41  337:     }
                    338:     if ($restartflag==1) {
1.5       harris41  339: 	$errors++;
1.23      www       340: 	         print $fh '<br><font color="red">Killall lonsql: '.
                    341:                     system('killall lonsql').' - ';
                    342:                     sleep 60;
                    343:                     print $fh unlink($lonsqlfile).' - '.
                    344:                               system('killall -9 lonsql').
                    345:                     '</font><br>';
1.5       harris41  346: 	print $fh "<h3>lonsql not running, trying to start</h3>";
1.16      harris41  347: 	system(
                    348:  "$perlvar{'lonDaemons'}/lonsql 2>>$perlvar{'lonDaemons'}/logs/lonsql_errors");
1.24      www       349: 	sleep 10;
1.5       harris41  350: 	if (-e $lonsqlfile) {
                    351: 	    print $fh "Seems like it started ...<p>";
                    352: 	    my $lfh=IO::File->new("$lonsqlfile");
                    353: 	    my $lonsqlpid=<$lfh>;
                    354: 	    chomp($lonsqlpid);
1.24      www       355: 	    sleep 30;
1.5       harris41  356: 	    if (kill 0 => $lonsqlpid) {
                    357: 		print $fh "<h3>lonsql at pid $lonsqlpid responding</h3>";
                    358: 	    } else {
                    359: 		$errors++; $errors++;
                    360: 		print $fh "<h3>lonsql at pid $lonsqlpid not responding</h3>";
                    361: 		print $fh "Give it one more try ...<p>";
1.16      harris41  362: 		system(
                    363:  "$perlvar{'lonDaemons'}/lonsql 2>>$perlvar{'lonDaemons'}/logs/lonsql_errors");
1.24      www       364: 		sleep 10;
1.5       harris41  365: 	    }
                    366: 	} else {
                    367: 	    print $fh "Seems like that did not work!<p>";
                    368: 	    $errors++;
                    369: 	}
                    370: 	if (-e "$perlvar{'lonDaemons'}/logs/lonsql.log"){
                    371: 	    print $fh "<p><pre>";
                    372: 	    open (DFH,"tail -n100 $perlvar{'lonDaemons'}/logs/lonsql.log|");
                    373: 	    while ($line=<DFH>) { 
                    374: 		print $fh "$line";
                    375: 		if ($line=~/WARNING/) { $notices++; }
                    376: 		if ($line=~/CRITICAL/) { $notices++; }
                    377: 	    };
                    378: 	    close (DFH);
                    379: 	    print $fh "</pre>";
                    380: 	}
                    381:     }
                    382: 
                    383:     $fname="$perlvar{'lonDaemons'}/logs/lonsql.log";
                    384: 
                    385:     my ($dev,$ino,$mode,$nlink,
                    386: 	$uid,$gid,$rdev,$size,
                    387: 	$atime,$mtime,$ctime,
                    388: 	$blksize,$blocks)=stat($fname);
                    389: 
                    390:     if ($size>40000) {
                    391: 	print $fh "Rotating logs ...<p>";
                    392: 	rename("$fname.2","$fname.3");
                    393: 	rename("$fname.1","$fname.2");
                    394: 	rename("$fname","$fname.1");
                    395:     }
                    396: 
                    397:     &errout($fh);
                    398: }
1.1       albertel  399: # ------------------------------------------------------------------------ lond
                    400: 
                    401: print $fh '<hr><a name="lond"><h2>lond</h2><h3>Log</h3><pre>';
1.23      www       402: print "lond\n";
1.1       albertel  403: 
                    404: if (-e "$perlvar{'lonDaemons'}/logs/lond.log"){
1.23      www       405: open (DFH,"tail -n25 $perlvar{'lonDaemons'}/logs/lond.log|");
1.1       albertel  406: while ($line=<DFH>) { 
                    407:    print $fh "$line";
1.3       www       408:    if ($line=~/INFO/) { $notices++; }
1.4       www       409:    if ($line=~/WARNING/) { $notices++; }
                    410:    if ($line=~/CRITICAL/) { $warnings++; }
1.1       albertel  411: };
                    412: close (DFH);
                    413: }
                    414: print $fh "</pre>";
                    415: 
                    416: my $londfile="$perlvar{'lonDaemons'}/logs/lond.pid";
                    417: 
1.22      harris41  418: $restartflag=1;
1.7       harris41  419: if (-e $londfile) {    
1.1       albertel  420:    my $lfh=IO::File->new("$londfile");
                    421:    my $londpid=<$lfh>;
                    422:    chomp($londpid);
                    423:    if (kill 0 => $londpid) {
1.25      www       424:       print $fh "<h3>lond at pid $londpid responding, sending USR1</h3>";
                    425:       kill USR1 => $londpid;
1.7       harris41  426:       $restartflag=0;
1.1       albertel  427:    } else {
1.8       harris41  428:       $errors++;
1.1       albertel  429:       print $fh "<h3>lond at pid $londpid not responding</h3>";
1.23      www       430:       $restartflag=1;
1.8       harris41  431:       print $fh 
1.23      www       432: 	  "<h3>Decided to clean up stale .pid file and restart lond</h3>";
1.1       albertel  433:    }
1.7       harris41  434: } 
                    435: if ($restartflag==1) {
1.1       albertel  436:    $errors++;
1.23      www       437: 	  print $fh '<br><font color="red">Killall lond: '.
                    438:                     system('killall lond').' - ';
                    439:           sleep 60;
                    440:           print $fh unlink($londfile).' - '.system('killall -9 lond').
                    441:                     '</font><br>';
1.1       albertel  442:    print $fh "<h3>lond not running, trying to start</h3>";
1.16      harris41  443:    system(
                    444:      "$perlvar{'lonDaemons'}/lond 2>>$perlvar{'lonDaemons'}/logs/lond_errors");
1.24      www       445:    sleep 10;
1.1       albertel  446:    if (-e $londfile) {
                    447:        print $fh "Seems like it started ...<p>";
                    448:        my $lfh=IO::File->new("$londfile");
                    449:        my $londpid=<$lfh>;
                    450:        chomp($londpid);
1.24      www       451:        sleep 30;
1.1       albertel  452:        if (kill 0 => $londpid) {
                    453:           print $fh "<h3>lond at pid $londpid responding</h3>";
                    454:        } else {
                    455:           $errors++; $errors++;
                    456:           print $fh "<h3>lond at pid $londpid not responding</h3>";
                    457:           print $fh "Give it one more try ...<p>";
1.16      harris41  458: 	  system(
                    459:  "$perlvar{'lonDaemons'}/lond 2>>$perlvar{'lonDaemons'}/logs/lond_errors");
1.24      www       460:           sleep 10;
1.1       albertel  461:        }
                    462:    } else {
                    463:        print $fh "Seems like that did not work!<p>";
                    464:        $errors++;
                    465:    }
1.3       www       466:    if (-e "$perlvar{'lonDaemons'}/logs/lond.log"){
                    467:     print $fh "<p><pre>";
                    468:     open (DFH,"tail -n100 $perlvar{'lonDaemons'}/logs/lond.log|");
                    469:     while ($line=<DFH>) { 
                    470:       print $fh "$line";
1.4       www       471:       if ($line=~/WARNING/) { $notices++; }
                    472:       if ($line=~/CRITICAL/) { $notices++; }
1.3       www       473:     };
                    474:     close (DFH);
                    475:     print $fh "</pre>";
                    476:    }
1.1       albertel  477: }
                    478: 
                    479: $fname="$perlvar{'lonDaemons'}/logs/lond.log";
                    480: 
                    481:                           my ($dev,$ino,$mode,$nlink,
                    482:                               $uid,$gid,$rdev,$size,
                    483:                               $atime,$mtime,$ctime,
                    484:                               $blksize,$blocks)=stat($fname);
                    485: 
                    486: if ($size>40000) {
                    487:     print $fh "Rotating logs ...<p>";
                    488:     rename("$fname.2","$fname.3");
                    489:     rename("$fname.1","$fname.2");
                    490:     rename("$fname","$fname.1");
                    491: }
                    492: 
                    493: &errout($fh);
                    494: # ------------------------------------------------------------------------ lonc
                    495: 
                    496: print $fh '<hr><a name="lonc"><h2>lonc</h2><h3>Log</h3><pre>';
1.23      www       497: print "lonc\n";
1.1       albertel  498: 
                    499: if (-e "$perlvar{'lonDaemons'}/logs/lonc.log"){
1.23      www       500: open (DFH,"tail -n25 $perlvar{'lonDaemons'}/logs/lonc.log|");
1.1       albertel  501: while ($line=<DFH>) { 
                    502:    print $fh "$line";
1.3       www       503:    if ($line=~/INFO/) { $notices++; }
1.4       www       504:    if ($line=~/WARNING/) { $notices++; }
                    505:    if ($line=~/CRITICAL/) { $warnings++; }
1.1       albertel  506: };
                    507: close (DFH);
                    508: }
                    509: print $fh "</pre>";
                    510: 
                    511: my $loncfile="$perlvar{'lonDaemons'}/logs/lonc.pid";
                    512: 
1.7       harris41  513: $restartflag=1;
1.1       albertel  514: if (-e $loncfile) {
                    515:    my $lfh=IO::File->new("$loncfile");
                    516:    my $loncpid=<$lfh>;
                    517:    chomp($loncpid);
                    518:    if (kill 0 => $loncpid) {
                    519:       print $fh "<h3>lonc at pid $loncpid responding, sending USR1</h3>";
                    520:       kill USR1 => $loncpid;
1.7       harris41  521:       $restartflag=0;
1.1       albertel  522:    } else {
1.8       harris41  523:       $errors++;
1.1       albertel  524:       print $fh "<h3>lonc at pid $loncpid not responding</h3>";
1.10      harris41  525:       # Solution: kill parent and children processes, remove .pid and restart
1.8       harris41  526: 	  $restartflag=1;
                    527:       print $fh 
1.23      www       528: 	  "<h3>Decided to clean up stale .pid file and restart lonc</h3>";
1.1       albertel  529:    }
1.7       harris41  530: } 
                    531: if ($restartflag==1) {
1.1       albertel  532:    $errors++;
1.23      www       533: 	  print $fh '<br><font color="red">Killall lonc: '.
                    534: 	            system('killall lonc').' - ';
                    535:           sleep 60;
                    536:           print $fh unlink($loncfile).' - '.system('killall -9 lonc').
                    537:                     '</font><br>';
1.1       albertel  538:    print $fh "<h3>lonc not running, trying to start</h3>";
1.16      harris41  539: 	system(
1.17      harris41  540:  "$perlvar{'lonDaemons'}/lonc 2>>$perlvar{'lonDaemons'}/logs/lonc_errors");
1.24      www       541:    sleep 10;
1.1       albertel  542:    if (-e $loncfile) {
                    543:        print $fh "Seems like it started ...<p>";
                    544:        my $lfh=IO::File->new("$loncfile");
                    545:        my $loncpid=<$lfh>;
                    546:        chomp($loncpid);
1.24      www       547:        sleep 30;
1.1       albertel  548:        if (kill 0 => $loncpid) {
                    549:           print $fh "<h3>lonc at pid $loncpid responding</h3>";
                    550:        } else {
                    551:           $errors++; $errors++;
                    552:           print $fh "<h3>lonc at pid $loncpid not responding</h3>";
                    553:           print $fh "Give it one more try ...<p>";
1.16      harris41  554:  	  system(
1.17      harris41  555:  "$perlvar{'lonDaemons'}/lonc 2>>$perlvar{'lonDaemons'}/logs/lonc_errors");
1.24      www       556:           sleep 10;
1.1       albertel  557:        }
                    558:    } else {
                    559:        print $fh "Seems like that did not work!<p>";
                    560:        $errors++;
                    561:    }
1.3       www       562:    if (-e "$perlvar{'lonDaemons'}/logs/lonc.log") {
                    563:     print $fh "<p><pre>";
                    564:     open (DFH,"tail -n100 $perlvar{'lonDaemons'}/logs/lonc.log|");
                    565:     while ($line=<DFH>) { 
                    566:       print $fh "$line";
1.4       www       567:       if ($line=~/WARNING/) { $notices++; }
                    568:       if ($line=~/CRITICAL/) { $notices++; }
1.3       www       569:     };
                    570:     close (DFH);
                    571:     print $fh "</pre>";
                    572:    }
1.1       albertel  573: }
                    574: 
                    575: $fname="$perlvar{'lonDaemons'}/logs/lonc.log";
                    576: 
                    577:                           my ($dev,$ino,$mode,$nlink,
                    578:                               $uid,$gid,$rdev,$size,
                    579:                               $atime,$mtime,$ctime,
                    580:                               $blksize,$blocks)=stat($fname);
                    581: 
                    582: if ($size>40000) {
                    583:     print $fh "Rotating logs ...<p>";
                    584:     rename("$fname.2","$fname.3");
                    585:     rename("$fname.1","$fname.2");
                    586:     rename("$fname","$fname.1");
                    587: }
                    588: 
                    589:    
                    590: &errout($fh);
                    591: # ---------------------------------------------------------------------- lonnet
                    592: 
                    593: print $fh '<hr><a name="lonnet"><h2>lonnet</h2><h3>Temp Log</h3><pre>';
1.23      www       594: print "lonnet\n";
1.1       albertel  595: if (-e "$perlvar{'lonDaemons'}/logs/lonnet.log"){
                    596: open (DFH,"tail -n50 $perlvar{'lonDaemons'}/logs/lonnet.log|");
                    597: while ($line=<DFH>) { 
                    598:     print $fh "$line";
                    599: };
                    600: close (DFH);
                    601: }
1.11      www       602: print $fh "</pre><h3>Perm Log</h3><pre>";
1.1       albertel  603: 
                    604: if (-e "$perlvar{'lonDaemons'}/logs/lonnet.perm.log") {
                    605:     open(DFH,"tail -n10 $perlvar{'lonDaemons'}/logs/lonnet.perm.log|");
                    606: while ($line=<DFH>) { 
                    607:    print $fh "$line";
                    608: };
                    609: close (DFH);
                    610: } else { print $fh "No perm log\n" }
                    611: 
                    612: $fname="$perlvar{'lonDaemons'}/logs/lonnet.log";
                    613: 
                    614:                           my ($dev,$ino,$mode,$nlink,
                    615:                               $uid,$gid,$rdev,$size,
                    616:                               $atime,$mtime,$ctime,
                    617:                               $blksize,$blocks)=stat($fname);
                    618: 
                    619: if ($size>40000) {
                    620:     print $fh "Rotating logs ...<p>";
                    621:     rename("$fname.2","$fname.3");
                    622:     rename("$fname.1","$fname.2");
                    623:     rename("$fname","$fname.1");
                    624: }
                    625: 
                    626: print $fh "</pre>";
                    627: &errout($fh);
                    628: # ----------------------------------------------------------------- Connections
                    629: 
                    630: print $fh '<hr><a name="connections"><h2>Connections</h2>';
                    631: 
                    632: print $fh "<table border=2>";
                    633: foreach $tryserver (keys %hostname) {
                    634: 
                    635:     $answer=reply("pong",$tryserver);
                    636:     if ($answer eq "$tryserver:$perlvar{'lonHostID'}") {
                    637: 	$result="<b>ok</b>";
                    638:     } else {
                    639:         $result=$answer;
                    640:         $warnings++;
                    641:         if ($answer eq 'con_lost') { $warnings++; }
                    642:     }
                    643:     print $fh "<tr><td>$tryserver</td><td>$result</td></tr>\n";
                    644: 
                    645: }
                    646: print $fh "</table>";
                    647: 
                    648: &errout($fh);
                    649: # ------------------------------------------------------------ Delayed messages
                    650: 
                    651: print $fh '<hr><a name="delayed"><h2>Delayed Messages</h2>';
1.23      www       652: print "buffers\n";
1.1       albertel  653: 
                    654: print $fh '<h3>Scanning Permanent Log</h3>';
                    655: 
                    656: $unsend=0;
                    657: {
                    658:     my $dfh=IO::File->new("$perlvar{'lonDaemons'}/logs/lonnet.perm.log");
                    659:     while ($line=<$dfh>) {
                    660: 	($time,$sdf,$dserv,$dcmd)=split(/:/,$line);
                    661:         if ($sdf eq 'F') { 
                    662: 	    $local=localtime($time);
                    663:             print "<b>Failed: $time, $dserv, $dcmd</b><br>";
                    664:             $warnings++;
                    665:         }
                    666:         if ($sdf eq 'S') { $unsend--; }
                    667:         if ($sdf eq 'D') { $unsend++; }
                    668:     }
                    669: }
                    670: print $fh "Total unsend messages: <b>$unsend</b><p>\n";
                    671: $warnings=$warnings+5*$unsend;
                    672: 
                    673: print $fh "<h3>Outgoing Buffer</h3>";
                    674: 
                    675: open (DFH,"ls -lF $perlvar{'lonSockDir'}/delayed|");
                    676: while ($line=<DFH>) { 
                    677:     print $fh "$line<br>";
                    678: };
                    679: close (DFH);
                    680: 
                    681: # ------------------------------------------------------------------------- End
                    682: print $fh "<a name=errcount>\n";
                    683: $totalcount=$notices+4*$warnings+100*$errors;
                    684: &errout($fh);
                    685: print $fh "<h1>Total Error Count: $totalcount</h1>";
                    686: $now=time;
                    687: $date=localtime($now);
                    688: print $fh "<hr>$date ($now)</body></html>\n";
1.23      www       689: print "writing done\n";
1.1       albertel  690: }
                    691: 
                    692: rename ("$statusdir/newstatus.html","$statusdir/index.html");
                    693: 
                    694: if ($totalcount>200) {
1.23      www       695:    print "mailing\n";
1.1       albertel  696:    $emailto="$perlvar{'lonAdmEMail'},$perlvar{'lonSysEMail'}";
                    697:    $subj="LON: $perlvar{'lonHostID'} E:$errors W:$warnings N:$notices"; 
                    698:    system(
1.24      www       699:  "metasend -b -t $emailto -s '$subj' -f $statusdir/index.html -m text/html");
1.1       albertel  700: }
                    701: 1;
                    702: 
                    703: 
                    704: 
                    705: 
                    706: 
                    707: 
                    708: 
                    709: 

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