Annotation of loncom/loncron, revision 1.1
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: #
! 10: # 7/14,7/15,7/19,7/21,7/22 Gerd Kortemeyer
! 11:
! 12: use IO::File;
! 13: use IO::Socket;
! 14:
! 15: # -------------------------------------------------- Non-critical communication
! 16: sub reply {
! 17: my ($cmd,$server)=@_;
! 18: my $peerfile="$perlvar{'lonSockDir'}/$server";
! 19: my $client=IO::Socket::UNIX->new(Peer =>"$peerfile",
! 20: Type => SOCK_STREAM,
! 21: Timeout => 10)
! 22: or return "con_lost";
! 23: print $client "$cmd\n";
! 24: my $answer=<$client>;
! 25: chomp($answer);
! 26: if (!$answer) { $answer="con_lost"; }
! 27: return $answer;
! 28: }
! 29:
! 30: # --------------------------------------------------------- Output error status
! 31:
! 32: sub errout {
! 33: my $fh=shift;
! 34: print $fh (<<ENDERROUT);
! 35: <p><table border=2 bgcolor="#CCCCCC">
! 36: <tr><td>Notices</td><td>$notices</td></tr>
! 37: <tr><td>Warnings</td><td>$warnings</td></tr>
! 38: <tr><td>Errors</td><td>$errors</td></tr>
! 39: </table><p><a href="#top">Top</a><p>
! 40: ENDERROUT
! 41: }
! 42:
! 43: # -------------------------------------------------------------- Permanent logs
! 44: sub logperm {
! 45: my $message=shift;
! 46: my $execdir=$perlvar{'lonDaemons'};
! 47: my $now=time;
! 48: my $local=localtime($now);
! 49: my $fh=Apache::File->new(">>$execdir/logs/lonnet.perm.log");
! 50: print $fh "$now:$message:$local\n";
! 51: return 1;
! 52: }
! 53:
! 54: # ------------------------------------------------ Try to send delayed messages
! 55: sub senddelayed {
! 56: my $fh=shift;
! 57: my $dfname;
! 58: my $path="$perlvar{'lonSockDir'}/delayed";
! 59: print $fh "<h3>Attempting to send delayed messages</h3>";
! 60: while ($dfname=<$path/*>) {
! 61: my $wcmd;
! 62: {
! 63: my $dfh=IO::File->new($dfname);
! 64: $wcmd=<$dfh>;
! 65: }
! 66: my ($server,$cmd)=split(/:/,$wcmd);
! 67: chomp($cmd);
! 68: my $answer=reply($cmd,$server);
! 69: if ($answer ne 'con_lost') {
! 70: unlink("$dfname");
! 71: print $fh "Send $cmd to $server: $answer<br>\n";
! 72: &logperm("S:$server:$cmd");
! 73: } else {
! 74: print $fh "Failed to deliver $cmd to $server<br>\n";
! 75: $warnings++;
! 76: }
! 77: }
! 78: }
! 79:
! 80: # ================================================================ Main Program
! 81:
! 82:
! 83: # ------------------------------------------------------------ Read access.conf
! 84: {
! 85: my $config=IO::File->new("/etc/httpd/conf/access.conf");
! 86:
! 87: while (my $configline=<$config>) {
! 88: if ($configline =~ /PerlSetVar/) {
! 89: my ($dummy,$varname,$varvalue)=split(/\s+/,$configline);
! 90: $perlvar{$varname}=$varvalue;
! 91: }
! 92: }
! 93: }
! 94:
! 95: # ------------------------------------------------------------- Read hosts file
! 96: {
! 97: my $config=IO::File->new("$perlvar{'lonTabDir'}/hosts.tab");
! 98:
! 99: while (my $configline=<$config>) {
! 100: my ($id,$domain,$role,$name,$ip)=split(/:/,$configline);
! 101: $hostname{$id}=$name;
! 102: $hostdom{$id}=$domain;
! 103: $hostrole{$id}=$role;
! 104: $hostip{$id}=$ip;
! 105: if (($role eq 'library') && ($id ne $perlvar{'lonHostID'})) {
! 106: $libserv{$id}=$name;
! 107: }
! 108: }
! 109: }
! 110:
! 111: # ------------------------------------------------------ Read spare server file
! 112: {
! 113: my $config=IO::File->new("$perlvar{'lonTabDir'}/spare.tab");
! 114:
! 115: while (my $configline=<$config>) {
! 116: chomp($configline);
! 117: if (($configline) && ($configline ne $perlvar{'lonHostID'})) {
! 118: $spareid{$configline}=1;
! 119: }
! 120: }
! 121: }
! 122:
! 123: # ---------------------------------------------------------------- Start report
! 124:
! 125: $statusdir="/home/httpd/html/lon-status";
! 126:
! 127: $errors=0;
! 128: $warnings=0;
! 129: $notices=0;
! 130:
! 131: $now=time;
! 132: $date=localtime($now);
! 133:
! 134: {
! 135: my $fh=IO::File->new(">$statusdir/newstatus.html");
! 136:
! 137: print $fh (<<ENDHEADERS);
! 138: <html>
! 139: <head>
! 140: <title>LON Status Report $perlvar{'lonHostID'}</title>
! 141: </head>
! 142: <body bgcolor="#FFFFFF">
! 143: <a name="top">
! 144: <h1>LON Status Report $perlvar{'lonHostID'}</h1>
! 145: <h2>$date ($now)</h2>
! 146: <ol>
! 147: <li><a href="#configuration">Configuration</a>
! 148: <li><a href="#machine">Machine Information</a>
! 149: <li><a href="#httpd">httpd</a>
! 150: <li><a href="#lond">lond</a>
! 151: <li><a href="#lonc">lonc</a>
! 152: <li><a href="#lonnet">lonnet</a>
! 153: <li><a href="#connections">Connections</a>
! 154: <li><a href="#delayed">Delayed Messages</a>
! 155: <li><a href="#errcount">Error Count</a>
! 156: </ol>
! 157: <hr>
! 158: <a name="configuration">
! 159: <h2>Configuration</h2>
! 160: <h3>PerlVars</h3>
! 161: <table border=2>
! 162: ENDHEADERS
! 163:
! 164: foreach $varname (keys %perlvar) {
! 165: print $fh "<tr><td>$varname</td><td>$perlvar{$varname}</td></tr>\n";
! 166: }
! 167: print $fh "</table><h3>Hosts</h3><table border=2>";
! 168: foreach $id (keys %hostname) {
! 169: print $fh
! 170: "<tr><td>$id</td><td>$hostdom{$id}</td><td>$hostrole{$id}</td>";
! 171: print $fh "<td>$hostname{$id}</td><td>$hostip{$id}</td></tr>\n";
! 172: }
! 173: print $fh "</table><h3>Spare Hosts</h3><ol>";
! 174: foreach $id (keys %spareid) {
! 175: print $fh "<li>$id\n";
! 176: }
! 177:
! 178: print $fh "</ol>\n";
! 179:
! 180: # --------------------------------------------------------------------- Machine
! 181:
! 182: print $fh '<hr><a name="machine"><h2>Machine Information</h2>';
! 183: print $fh "<h3>loadavg</h3>";
! 184:
! 185: open (LOADAVGH,"/proc/loadavg");
! 186: $loadavg=<LOADAVGH>;
! 187: close (LOADAVGH);
! 188:
! 189: print $fh "<tt>$loadavg</tt>";
! 190:
! 191: @parts=split(/\s+/,$loadavg);
! 192: if ($parts[1]>3.0) {
! 193: $errors++;
! 194: } elsif ($parts[1]>2.0) {
! 195: $warnings++;
! 196: } elsif ($parts[1]>1.0) {
! 197: $notices++;
! 198: }
! 199:
! 200: print $fh "<h3>df</h3>";
! 201: print $fh "<pre>";
! 202:
! 203: open (DFH,"df|");
! 204: while ($line=<DFH>) {
! 205: print $fh "$line";
! 206: @parts=split(/\s+/,$line);
! 207: $usage=$parts[4];
! 208: $usage=~s/\W//g;
! 209: if ($usage>90) {
! 210: $errors++;
! 211: } elsif ($usage>80) {
! 212: $warnings++;
! 213: } elsif ($usage>60) {
! 214: $notices++;
! 215: }
! 216: if ($usage>95) { $errors++; }
! 217: }
! 218: close (DFH);
! 219: print $fh "</pre>";
! 220: &errout($fh);
! 221: # ----------------------------------------------------------------------- httpd
! 222:
! 223: print $fh '<hr><a name="httpd"><h2>httpd</h2><h3>Access Log</h3><pre>';
! 224:
! 225: open (DFH,"tail -n40 /etc/httpd/logs/access_log|");
! 226: while ($line=<DFH>) { print $fh "$line" };
! 227: close (DFH);
! 228:
! 229: print $fh "</pre><h3>Error Log</h3><pre>";
! 230:
! 231: open (DFH,"tail -n50 /etc/httpd/logs/error_log|");
! 232: while ($line=<DFH>) {
! 233: print $fh "$line";
! 234: if ($line=~/\[error\]/) { $notices++; }
! 235: };
! 236: close (DFH);
! 237: print $fh "</pre>";
! 238: &errout($fh);
! 239: # ------------------------------------------------------------------------ lond
! 240:
! 241: print $fh '<hr><a name="lond"><h2>lond</h2><h3>Log</h3><pre>';
! 242:
! 243: if (-e "$perlvar{'lonDaemons'}/logs/lond.log"){
! 244: open (DFH,"tail -n50 $perlvar{'lonDaemons'}/logs/lond.log|");
! 245: while ($line=<DFH>) {
! 246: print $fh "$line";
! 247: if ($line=~/giving up/) { $notices++; }
! 248: };
! 249: close (DFH);
! 250: }
! 251: print $fh "</pre>";
! 252:
! 253: my $londfile="$perlvar{'lonDaemons'}/logs/lond.pid";
! 254:
! 255: if (-e $londfile) {
! 256: my $lfh=IO::File->new("$londfile");
! 257: my $londpid=<$lfh>;
! 258: chomp($londpid);
! 259: if (kill 0 => $londpid) {
! 260: print $fh "<h3>lond at pid $londpid responding</h3>";
! 261: } else {
! 262: $errors++; $errors++;
! 263: print $fh "<h3>lond at pid $londpid not responding</h3>";
! 264: }
! 265: } else {
! 266: $errors++;
! 267: print $fh "<h3>lond not running, trying to start</h3>";
! 268: system("$perlvar{'lonDaemons'}/lond");
! 269: sleep 120;
! 270: if (-e $londfile) {
! 271: print $fh "Seems like it started ...<p>";
! 272: my $lfh=IO::File->new("$londfile");
! 273: my $londpid=<$lfh>;
! 274: chomp($londpid);
! 275: sleep 30;
! 276: if (kill 0 => $londpid) {
! 277: print $fh "<h3>lond at pid $londpid responding</h3>";
! 278: } else {
! 279: $errors++; $errors++;
! 280: print $fh "<h3>lond at pid $londpid not responding</h3>";
! 281: print $fh "Give it one more try ...<p>";
! 282: system("$perlvar{'lonDaemons'}/lond");
! 283: sleep 120;
! 284: }
! 285: } else {
! 286: print $fh "Seems like that did not work!<p>";
! 287: $errors++;
! 288: }
! 289: }
! 290:
! 291: $fname="$perlvar{'lonDaemons'}/logs/lond.log";
! 292:
! 293: my ($dev,$ino,$mode,$nlink,
! 294: $uid,$gid,$rdev,$size,
! 295: $atime,$mtime,$ctime,
! 296: $blksize,$blocks)=stat($fname);
! 297:
! 298: if ($size>40000) {
! 299: print $fh "Rotating logs ...<p>";
! 300: rename("$fname.2","$fname.3");
! 301: rename("$fname.1","$fname.2");
! 302: rename("$fname","$fname.1");
! 303: }
! 304:
! 305: &errout($fh);
! 306: # ------------------------------------------------------------------------ lonc
! 307:
! 308: print $fh '<hr><a name="lonc"><h2>lonc</h2><h3>Log</h3><pre>';
! 309:
! 310: if (-e "$perlvar{'lonDaemons'}/logs/lonc.log"){
! 311: open (DFH,"tail -n50 $perlvar{'lonDaemons'}/logs/lonc.log|");
! 312: while ($line=<DFH>) {
! 313: print $fh "$line";
! 314: if ($line=~/died/) { $notices++; }
! 315: };
! 316: close (DFH);
! 317: }
! 318: print $fh "</pre>";
! 319:
! 320: my $loncfile="$perlvar{'lonDaemons'}/logs/lonc.pid";
! 321:
! 322: if (-e $loncfile) {
! 323: my $lfh=IO::File->new("$loncfile");
! 324: my $loncpid=<$lfh>;
! 325: chomp($loncpid);
! 326: if (kill 0 => $loncpid) {
! 327: print $fh "<h3>lonc at pid $loncpid responding, sending USR1</h3>";
! 328: kill USR1 => $loncpid;
! 329: } else {
! 330: $errors++; $errors++;
! 331: print $fh "<h3>lonc at pid $loncpid not responding</h3>";
! 332: }
! 333: } else {
! 334: $errors++;
! 335: print $fh "<h3>lonc not running, trying to start</h3>";
! 336: system("$perlvar{'lonDaemons'}/lonc");
! 337: sleep 120;
! 338: if (-e $loncfile) {
! 339: print $fh "Seems like it started ...<p>";
! 340: my $lfh=IO::File->new("$loncfile");
! 341: my $loncpid=<$lfh>;
! 342: chomp($loncpid);
! 343: sleep 30;
! 344: if (kill 0 => $loncpid) {
! 345: print $fh "<h3>lonc at pid $loncpid responding</h3>";
! 346: } else {
! 347: $errors++; $errors++;
! 348: print $fh "<h3>lonc at pid $loncpid not responding</h3>";
! 349: print $fh "Give it one more try ...<p>";
! 350: system("$perlvar{'lonDaemons'}/lonc");
! 351: sleep 120;
! 352: }
! 353: } else {
! 354: print $fh "Seems like that did not work!<p>";
! 355: $errors++;
! 356: }
! 357: }
! 358:
! 359: $fname="$perlvar{'lonDaemons'}/logs/lonc.log";
! 360:
! 361: my ($dev,$ino,$mode,$nlink,
! 362: $uid,$gid,$rdev,$size,
! 363: $atime,$mtime,$ctime,
! 364: $blksize,$blocks)=stat($fname);
! 365:
! 366: if ($size>40000) {
! 367: print $fh "Rotating logs ...<p>";
! 368: rename("$fname.2","$fname.3");
! 369: rename("$fname.1","$fname.2");
! 370: rename("$fname","$fname.1");
! 371: }
! 372:
! 373:
! 374: &errout($fh);
! 375: # ---------------------------------------------------------------------- lonnet
! 376:
! 377: print $fh '<hr><a name="lonnet"><h2>lonnet</h2><h3>Temp Log</h3><pre>';
! 378: if (-e "$perlvar{'lonDaemons'}/logs/lonnet.log"){
! 379: open (DFH,"tail -n50 $perlvar{'lonDaemons'}/logs/lonnet.log|");
! 380: while ($line=<DFH>) {
! 381: print $fh "$line";
! 382: if ($line=~/Delayed/) { $warnings++; }
! 383: if ($line=~/giving up/) { $warnings++; }
! 384: if ($line=~/FAILED/) { $errors++; }
! 385: };
! 386: close (DFH);
! 387: }
! 388: print $fh "</pre><h3>Perm Log</h3>";
! 389:
! 390: if (-e "$perlvar{'lonDaemons'}/logs/lonnet.perm.log") {
! 391: open(DFH,"tail -n10 $perlvar{'lonDaemons'}/logs/lonnet.perm.log|");
! 392: while ($line=<DFH>) {
! 393: print $fh "$line";
! 394: };
! 395: close (DFH);
! 396: } else { print $fh "No perm log\n" }
! 397:
! 398: $fname="$perlvar{'lonDaemons'}/logs/lonnet.log";
! 399:
! 400: my ($dev,$ino,$mode,$nlink,
! 401: $uid,$gid,$rdev,$size,
! 402: $atime,$mtime,$ctime,
! 403: $blksize,$blocks)=stat($fname);
! 404:
! 405: if ($size>40000) {
! 406: print $fh "Rotating logs ...<p>";
! 407: rename("$fname.2","$fname.3");
! 408: rename("$fname.1","$fname.2");
! 409: rename("$fname","$fname.1");
! 410: }
! 411:
! 412: print $fh "</pre>";
! 413: &errout($fh);
! 414: # ----------------------------------------------------------------- Connections
! 415:
! 416: print $fh '<hr><a name="connections"><h2>Connections</h2>';
! 417:
! 418: print $fh "<table border=2>";
! 419: foreach $tryserver (keys %hostname) {
! 420:
! 421: $answer=reply("pong",$tryserver);
! 422: if ($answer eq "$tryserver:$perlvar{'lonHostID'}") {
! 423: $result="<b>ok</b>";
! 424: } else {
! 425: $result=$answer;
! 426: $warnings++;
! 427: if ($answer eq 'con_lost') { $warnings++; }
! 428: }
! 429: print $fh "<tr><td>$tryserver</td><td>$result</td></tr>\n";
! 430:
! 431: }
! 432: print $fh "</table>";
! 433:
! 434: &errout($fh);
! 435: # ------------------------------------------------------------ Delayed messages
! 436:
! 437: print $fh '<hr><a name="delayed"><h2>Delayed Messages</h2>';
! 438:
! 439: &senddelayed($fh);
! 440:
! 441: print $fh '<h3>Scanning Permanent Log</h3>';
! 442:
! 443: $unsend=0;
! 444: {
! 445: my $dfh=IO::File->new("$perlvar{'lonDaemons'}/logs/lonnet.perm.log");
! 446: while ($line=<$dfh>) {
! 447: ($time,$sdf,$dserv,$dcmd)=split(/:/,$line);
! 448: if ($sdf eq 'F') {
! 449: $local=localtime($time);
! 450: print "<b>Failed: $time, $dserv, $dcmd</b><br>";
! 451: $warnings++;
! 452: }
! 453: if ($sdf eq 'S') { $unsend--; }
! 454: if ($sdf eq 'D') { $unsend++; }
! 455: }
! 456: }
! 457: print $fh "Total unsend messages: <b>$unsend</b><p>\n";
! 458: $warnings=$warnings+5*$unsend;
! 459:
! 460: print $fh "<h3>Outgoing Buffer</h3>";
! 461:
! 462: open (DFH,"ls -lF $perlvar{'lonSockDir'}/delayed|");
! 463: while ($line=<DFH>) {
! 464: print $fh "$line<br>";
! 465: };
! 466: close (DFH);
! 467:
! 468: # ------------------------------------------------------------------------- End
! 469: print $fh "<a name=errcount>\n";
! 470: $totalcount=$notices+4*$warnings+100*$errors;
! 471: &errout($fh);
! 472: print $fh "<h1>Total Error Count: $totalcount</h1>";
! 473: $now=time;
! 474: $date=localtime($now);
! 475: print $fh "<hr>$date ($now)</body></html>\n";
! 476:
! 477: }
! 478:
! 479: rename ("$statusdir/newstatus.html","$statusdir/index.html");
! 480:
! 481: if ($totalcount>200) {
! 482: $emailto="$perlvar{'lonAdmEMail'},$perlvar{'lonSysEMail'}";
! 483: $subj="LON: $perlvar{'lonHostID'} E:$errors W:$warnings N:$notices";
! 484: system(
! 485: "metasend -b -t $emailto -s '$subj' -f $statusdir/index.html -m text/html");
! 486: }
! 487: 1;
! 488:
! 489:
! 490:
! 491:
! 492:
! 493:
! 494:
! 495:
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