--- loncom/loncron 2006/10/25 21:33:54 1.68 +++ loncom/loncron 2011/06/03 20:45:10 1.90 @@ -2,7 +2,7 @@ # Housekeeping program, started by cron, loncontrol and loncron.pl # -# $Id: loncron,v 1.68 2006/10/25 21:33:54 www Exp $ +# $Id: loncron,v 1.90 2011/06/03 20:45:10 raeburn Exp $ # # Copyright Michigan State University Board of Trustees # @@ -32,6 +32,9 @@ use strict; use lib '/home/httpd/lib/perl/'; use LONCAPA::Configuration; +use LONCAPA; +use Apache::lonnet; +use Apache::loncommon; use IO::File; use IO::Socket; @@ -43,21 +46,6 @@ use vars qw (%perlvar %simplestatus $err my $statusdir="/home/httpd/html/lon-status"; -# -------------------------------------------------- Non-critical communication -sub reply { - my ($cmd,$server,$hostname)=@_; - my $peerfile="$perlvar{'lonSockDir'}/".$hostname->{$server}; - my $client=IO::Socket::UNIX->new(Peer =>"$peerfile", - Type => SOCK_STREAM, - Timeout => 10) - or return "con_lost"; - print $client "sethost:$server:$cmd\n"; - my $answer=<$client>; - chomp($answer); - if (!$answer) { $answer="con_lost"; } - return $answer; -} - # --------------------------------------------------------- Output error status sub log { @@ -76,20 +64,27 @@ sub errout { ENDERROUT } +sub rotate_logfile { + my ($file,$fh,$description) = @_; + my $size=(stat($file))[7]; + if ($size>40000) { + &log($fh,"

Rotating $description ...

"); + rename("$file.2","$file.3"); + rename("$file.1","$file.2"); + rename("$file","$file.1"); + } +} + sub start_daemon { my ($fh,$daemon,$pidfile,$args) = @_; my $progname=$daemon; - if ($daemon eq 'lonc' && $args eq 'new') { + if ($daemon eq 'lonc') { $progname='loncnew'; - print "new "; } my $error_fname="$perlvar{'lonDaemons'}/logs/${daemon}_errors"; - my $size=(stat($error_fname))[7]; - if ($size>40000) { - &log($fh,"

Rotating error logs ...

"); - rename("$error_fname.2","$error_fname.3"); - rename("$error_fname.1","$error_fname.2"); - rename("$error_fname","$error_fname.1"); + &rotate_logfile($error_fname,$fh,'error logs'); + if ($daemon eq 'lonc') { + &clean_sockets($fh); } system("$perlvar{'lonDaemons'}/$progname 2>$perlvar{'lonDaemons'}/logs/${daemon}_errors"); sleep 1; @@ -208,18 +203,7 @@ sub checkon_daemon { } my $fname="$perlvar{'lonDaemons'}/logs/$daemon.log"; - - my ($dev,$ino,$mode,$nlink, - $uid,$gid,$rdev,$size, - $atime,$mtime,$ctime, - $blksize,$blocks)=stat($fname); - - if ($size>$maxsize) { - &log($fh,"

Rotating logs ...

"); - rename("$fname.2","$fname.3"); - rename("$fname.1","$fname.2"); - rename("$fname","$fname.1"); - } + &rotate_logfile($fname,$fh,'logs'); &errout($fh); return $result; @@ -298,7 +282,6 @@ sub log_machine_info { } sub start_logging { - my ($hostdom,$hostrole,$hostname,$spareid)=@_; my $fh=IO::File->new(">$statusdir/newstatus.html"); my %simplestatus=(); my $now=time; @@ -323,7 +306,6 @@ sub start_logging {
  • lonsql
  • lond
  • lonc
    • -
  • lonhttpd
  • lonnet
  • Connections
  • Delayed Messages
    • @@ -341,17 +323,24 @@ ENDHEADERS &encode_entities($perlvar{$varname},'<>&"')."\n"); } &log($fh,"

    Hosts

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

    Spare Hosts

      "); - foreach my $id (sort(keys(%{$spareid}))) { - &log($fh,"
    1. $id\n
      2. "); + "$id".&Apache::lonnet::host_domain($id). + "".$role. + "".&Apache::lonnet::hostname($id)."\n"); + } + &log($fh,"

      Spare Hosts

    \n"); + &log($fh,"\n"); return $fh; } @@ -359,33 +348,127 @@ ENDHEADERS sub clean_tmp { my ($fh)=@_; &log($fh,'

    Temporary Files

    '); - my $cleaned=0; - my $old=0; - while (my $fname=<$perlvar{'lonDaemons'}/tmp/*>) { - my ($dev,$ino,$mode,$nlink, - $uid,$gid,$rdev,$size, - $atime,$mtime,$ctime, - $blksize,$blocks)=stat($fname); - my $now=time; - my $since=$now-$mtime; - if ($since>$perlvar{'lonExpire'}) { - my $line=''; - if (open(PROBE,$fname)) { - $line=; - close(PROBE); - } - unless ($line=~/^CHECKOUTTOKEN\&/) { - $cleaned++; - unlink("$fname"); - } else { - if ($since>365*$perlvar{'lonExpire'}) { - $cleaned++; - unlink("$fname"); - } else { $old++; } - } - } + my ($cleaned,$old,$removed) = (0,0,0); + my %errors = ( + dir => [], + file => [], + failopen => [], + ); + my %error_titles = ( + dir => 'failed to remove empty directory:', + file => 'failed to unlike stale file', + failopen => 'failed to open file or directory' + ); + ($cleaned,$old,$removed) = &recursive_clean_tmp('',$cleaned,$old,$removed,\%errors); + &log($fh,"Cleaned up: ".$cleaned." files; removed: $removed empty directories; (found: $old old checkout tokens)"); + foreach my $key (sort(keys(%errors))) { + if (ref($errors{$key}) eq 'ARRAY') { + if (@{$errors{$key}} > 0) { + &log($fh,"Error during cleanup ($error_titles{$key}):
    '); + } + } + } +} + +sub recursive_clean_tmp { + my ($subdir,$cleaned,$old,$removed,$errors) = @_; + my $base = "$perlvar{'lonDaemons'}/tmp"; + my $path = $base; + next if ($subdir =~ m{\.\./}); + next unless (ref($errors) eq 'HASH'); + unless ($subdir eq '') { + $path .= '/'.$subdir; + } + if (opendir(my $dh,"$path")) { + while (my $file = readdir($dh)) { + next if ($file =~ /^\.\.?$/); + my $fname = "$path/$file"; + if (-d $fname) { + my $innerdir; + if ($subdir eq '') { + $innerdir = $file; + } else { + $innerdir = $subdir.'/'.$file; + } + ($cleaned,$old,$removed) = + &recursive_clean_tmp($innerdir,$cleaned,$old,$removed,$errors); + my @doms = &Apache::lonnet::current_machine_domains(); + + if (open(my $dirhandle,$fname)) { + unless (($innerdir eq 'helprequests') || + (($innerdir =~ /^addcourse/) && ($innerdir !~ m{/\d+$}))) { + my @contents = grep {!/^\.\.?$/} readdir($dirhandle); + join('&&',@contents)."\n"; + if (scalar(grep {!/^\.\.?$/} readdir($dirhandle)) == 0) { + closedir($dirhandle); + if ($fname =~ m{^\Q$perlvar{'lonDaemons'}\E/tmp/}) { + if (rmdir($fname)) { + $removed ++; + } elsif (ref($errors->{dir}) eq 'ARRAY') { + push(@{$errors->{dir}},$fname); + } + } + } + } else { + closedir($dirhandle); + } + } + } else { + my ($dev,$ino,$mode,$nlink, + $uid,$gid,$rdev,$size, + $atime,$mtime,$ctime, + $blksize,$blocks)=stat($fname); + my $now=time; + my $since=$now-$mtime; + if ($since>$perlvar{'lonExpire'}) { + if ($subdir eq '') { + my $line=''; + if ($fname =~ /\.db$/) { + if (unlink($fname)) { + $cleaned++; + } elsif (ref($errors->{file}) eq 'ARRAY') { + push(@{$errors->{file}},$fname); + } + } elsif (open(PROBE,$fname)) { + my $line=''; + $line=; + close(PROBE); + if ($line=~/^CHECKOUTTOKEN\&/) { + if ($since>365*$perlvar{'lonExpire'}) { + if (unlink($fname)) { + $cleaned++; + } elsif (ref($errors->{file}) eq 'ARRAY') { + push(@{$errors->{file}},$fname); + } + } else { + $old++; + } + } else { + if (unlink($fname)) { + $cleaned++; + } elsif (ref($errors->{file}) eq 'ARRAY') { + push(@{$errors->{file}},$fname); + } + } + } elsif (ref($errors->{failopen}) eq 'ARRAY') { + push(@{$errors->{failopen}},$fname); + } + } else { + if (unlink($fname)) { + $cleaned++; + } elsif (ref($errors->{file}) eq 'ARRAY') { + push(@{$errors->{file}},$fname); + } + } + } + } + } + closedir($dh); + } elsif (ref($errors->{failopen}) eq 'ARRAY') { + push(@{$errors->{failopen}},$path); } - &log($fh,"Cleaned up ".$cleaned." files (".$old." old checkout tokens)."); + return ($cleaned,$old,$removed); } # ------------------------------------------------------------ clean out lonIDs @@ -413,6 +496,21 @@ sub clean_lonIDs { &log($fh,"

    $active open session(s)

    "); } +# ----------------------------------------------------------- clean out sockets +sub clean_sockets { + my ($fh)=@_; + my $cleaned=0; + opendir(SOCKETS,$perlvar{'lonSockDir'}); + while (my $fname=readdir(SOCKETS)) { + next if (-d $fname + || $fname=~/(mysqlsock|maximasock|rsock|\Q$perlvar{'lonSockDir'}\E)/); + $cleaned++; + &log($fh,"Unlinking $fname
    "); + unlink("/home/httpd/sockets/$fname"); + } + &log($fh,"

    Cleaned up ".$cleaned." stale sockets.

    "); +} + # ----------------------------------------------------------------------- httpd sub check_httpd_logs { @@ -459,34 +557,39 @@ sub rotate_lonnet_logs { } else { &log($fh,"No perm log\n") } my $fname="$perlvar{'lonDaemons'}/logs/lonnet.log"; - - my ($dev,$ino,$mode,$nlink, - $uid,$gid,$rdev,$size, - $atime,$mtime,$ctime, - $blksize,$blocks)=stat($fname); - - if ($size>40000) { - &log($fh,"

    Rotating logs ...

    "); - rename("$fname.2","$fname.3"); - rename("$fname.1","$fname.2"); - rename("$fname","$fname.1"); - } + &rotate_logfile($fname,$fh,'lonnet log'); &log($fh,""); &errout($fh); } +sub rotate_other_logs { + my ($fh) = @_; + my %logs = ( + autoenroll => 'Auto Enroll log', + autocreate => 'Create Course log', + searchcat => 'Search Cataloguing log', + autoupdate => 'Auto Update log', + refreshcourseids_db => 'Refresh CourseIDs db log', + ); + foreach my $item (keys(%logs)) { + my $fname=$perlvar{'lonDaemons'}.'/logs/'.$item.'.log'; + &rotate_logfile($fname,$fh,$logs{$item}); + } +} + # ----------------------------------------------------------------- Connections sub test_connections { - my ($fh,$hostname)=@_; + my ($fh)=@_; &log($fh,'

    Connections

    '); print "testing connections\n"; &log($fh,""); my ($good,$bad)=(0,0); - foreach my $tryserver (sort(keys(%{$hostname}))) { + my %hostname = &Apache::lonnet::all_hostnames(); + foreach my $tryserver (sort(keys(%hostname))) { print("."); my $result; - my $answer=&reply("ping",$tryserver,$hostname); + my $answer=&Apache::lonnet::reply("ping",$tryserver); if ($answer eq "$tryserver:$perlvar{'lonHostID'}") { $result="ok"; $good++; @@ -511,7 +614,7 @@ sub test_connections { # ------------------------------------------------------------ Delayed messages sub check_delayed_msg { - my ($fh,$hostname)=@_; + my ($fh)=@_; &log($fh,'

    Delayed Messages

    '); print "checking buffers\n"; @@ -549,8 +652,8 @@ sub check_delayed_msg { # 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"); + my $answer=&Apache::lonnet::reply("pong",$tryserver); + &log($fh,"Pong to $tryserver: $answer
    "); } } @@ -573,7 +676,7 @@ sub finish_logging { } sub log_simplestatus { - rename ("$statusdir/newstatus.html","$statusdir/index.html"); + rename("$statusdir/newstatus.html","$statusdir/index.html"); my $sfh=IO::File->new(">$statusdir/loncron_simple.txt"); foreach (keys %simplestatus) { @@ -583,9 +686,70 @@ sub log_simplestatus { $sfh->close(); } +sub write_loncaparevs { + print "Retrieving LON-CAPA version information\n"; + if (open(my $fh,">$perlvar{'lonTabDir'}/loncaparevs.tab")) { + my %hostname = &Apache::lonnet::all_hostnames(); + foreach my $id (sort(keys(%hostname))) { + if ($id ne '') { + my $loncaparev; + eval { + local $SIG{ ALRM } = sub { die "TIMEOUT" }; + alarm(10); + $loncaparev = + &Apache::lonnet::get_server_loncaparev('',$id,1,'loncron'); + alarm(0); + }; + if ($@ && $@ =~ m/TIMEOUT/) { + print "time out while contacting lonHost: $id for version\n"; + } + if ($loncaparev =~ /^[\w.\-]+$/) { + print $fh $id.':'.$loncaparev."\n"; + } + } + } + close($fh); + } + return; +} + +sub write_serverhomeIDs { + print "Retrieving LON-CAPA lonHostID information\n"; + if (open(my $fh,">$perlvar{'lonTabDir'}/serverhomeIDs.tab")) { + my %name_to_host = &Apache::lonnet::all_names(); + foreach my $name (sort(keys(%name_to_host))) { + if ($name ne '') { + if (ref($name_to_host{$name}) eq 'ARRAY') { + my $serverhomeID; + eval { + local $SIG{ ALRM } = sub { die "TIMEOUT" }; + alarm(10); + $serverhomeID = + &Apache::lonnet::get_server_homeID($name,1,'loncron'); + alarm(0); + }; + if ($@ && $@ =~ m/TIMEOUT/) { + print "Time out while contacting server: $name\n"; + } + if ($serverhomeID ne '') { + print $fh $name.':'.$serverhomeID."\n"; + } else { + print $fh $name.':'.$name_to_host{$name}->[0]."\n"; + } + } + } + } + close($fh); + } + return; +} + sub send_mail { print "sending mail\n"; - my $emailto="$perlvar{'lonAdmEMail'}"; + my $defdom = $perlvar{'lonDefDomain'}; + my $origmail = $perlvar{'lonAdmEMail'}; + my $emailto = &Apache::loncommon::build_recipient_list(undef, + 'lonstatusmail',$defdom,$origmail); if ($totalcount>2500) { $emailto.=",$perlvar{'lonSysEMail'}"; } @@ -602,8 +766,7 @@ sub usage { loncron - housekeeping program that checks up on various parts of Lon-CAPA Options: - --help Display help - --oldlonc When starting the lonc daemon use 'lonc' not 'loncnew' + --help Display --noemail Do not send the status email --justcheckconnections Only check the current status of the lonc/d connections, do not send emails do not @@ -623,10 +786,9 @@ USAGE # ================================================================ Main Program sub main () { - my ($oldlonc,$help,$justcheckdaemons,$noemail,$justcheckconnections, + my ($help,$justcheckdaemons,$noemail,$justcheckconnections, $justreload); &GetOptions("help" => \$help, - "oldlonc" => \$oldlonc, "justcheckdaemons" => \$justcheckdaemons, "noemail" => \$noemail, "justcheckconnections" => \$justcheckconnections, @@ -639,7 +801,7 @@ sub main () { undef $perlvarref; delete $perlvar{'lonReceipt'}; # remove since sensitive and not needed delete $perlvar{'lonSqlAccess'}; # remove since sensitive and not needed - + chdir($perlvar{'lonDaemons'}); # --------------------------------------- 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'}) { @@ -665,32 +827,31 @@ sub main () { exit 1; } -# ------------------------------------------------------------- Read hosts file - 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; - -# ------------------------------------------------------ Read spare server file - $config=IO::File->new("$perlvar{'lonTabDir'}/spare.tab"); - - while (my $configline=<$config>) { - chomp($configline); - if (($configline) && ($configline ne $perlvar{'lonHostID'})) { - $spareid{$configline}=1; - } +# -------------------------------------------- Force reload of host information + &Apache::lonnet::load_hosts_tab(1); + &Apache::lonnet::load_domain_tab(1); + &Apache::lonnet::get_iphost(1); + +# ----------------------------------------- Force firewall update for lond port + + if ((!$justcheckdaemons) && (!$justreload)) { + my $now = time; + my $tmpfile = $perlvar{'lonDaemons'}.'/tmp/lciptables_iphost_'. + $now.$$.int(rand(10000)); + if (open(my $fh,">$tmpfile")) { + my %iphosts = &Apache::lonnet::get_iphost(); + foreach my $key (keys(%iphosts)) { + print $fh "$key\n"; + } + close($fh); + if (&LONCAPA::try_to_lock('/tmp/lock_lciptables')) { + my $execpath = $perlvar{'lonDaemons'}.'/lciptables'; + system("$execpath $tmpfile"); + unlink('/tmp/lock_lciptables'); # Remove the lock file. + } + unlink($tmpfile); + } } - undef $config; # ---------------------------------------------------------------- Start report @@ -701,38 +862,38 @@ sub main () { my $fh; if (!$justcheckdaemons && !$justcheckconnections && !$justreload) { - $fh=&start_logging(\%hostdom,\%hostrole,\%hostname,\%spareid); + $fh=&start_logging(); &log_machine_info($fh); &clean_tmp($fh); &clean_lonIDs($fh); &check_httpd_logs($fh); &rotate_lonnet_logs($fh); + &rotate_other_logs($fh); } if (!$justcheckconnections && !$justreload) { + &checkon_daemon($fh,'lonmemcached',40000); &checkon_daemon($fh,'lonsql',200000); if ( &checkon_daemon($fh,'lond',40000,'USR1') eq 'running') { &checkon_daemon($fh,'lond',40000,'USR2'); } - my $args='new'; - if ($oldlonc) { $args = ''; } - &checkon_daemon($fh,'lonc',40000,'USR1',$args); - &checkon_daemon($fh,'lonhttpd',40000); - &checkon_daemon($fh,'lonmemcached',40000); + &checkon_daemon($fh,'lonc',40000,'USR1'); + &checkon_daemon($fh,'lonmaxima',40000); + &checkon_daemon($fh,'lonr',40000); } if ($justreload) { &checkon_daemon($fh,'lond',40000,'USR2'); - my $args='new'; - if ($oldlonc) { $args = ''; } - &checkon_daemon($fh,'lonc',40000,'USR2',$args); + &checkon_daemon($fh,'lonc',40000,'USR2'); } if ($justcheckconnections) { - &test_connections($fh,\%hostname); + &test_connections($fh); } if (!$justcheckdaemons && !$justcheckconnections && !$justreload) { - &check_delayed_msg($fh,\%hostname); + &check_delayed_msg($fh); &finish_logging($fh); &log_simplestatus(); + &write_loncaparevs(); + &write_serverhomeIDs(); if ($totalcount>200 && !$noemail) { &send_mail(); } }