--- loncom/lond 2003/12/02 10:37:59 1.164 +++ loncom/lond 2003/12/12 21:37:42 1.165 @@ -2,7 +2,7 @@ # The LearningOnline Network # lond "LON Daemon" Server (port "LOND" 5663) # -# $Id: lond,v 1.164 2003/12/02 10:37:59 foxr Exp $ +# $Id: lond,v 1.165 2003/12/12 21:37:42 albertel Exp $ # # Copyright Michigan State University Board of Trustees # @@ -52,7 +52,7 @@ my $DEBUG = 0; # Non zero to ena my $status=''; my $lastlog=''; -my $VERSION='$Revision: 1.164 $'; #' stupid emacs +my $VERSION='$Revision: 1.165 $'; #' stupid emacs my $remoteVERSION; my $currenthostid; my $currentdomainid; @@ -513,6 +513,7 @@ sub catchexception { my ($error)=@_; $SIG{'QUIT'}='DEFAULT'; $SIG{__DIE__}='DEFAULT'; + &status("Catching exception"); &logthis("CRITICAL: " ."ABNORMAL EXIT. Child $$ for server $thisserver died through " ."a crash with this error msg->[$error]"); @@ -523,6 +524,7 @@ sub catchexception { } sub timeout { + &status("Handling Timeout"); &logthis("CRITICAL: TIME OUT ".$$.""); &catchexception('Timeout'); } @@ -579,6 +581,7 @@ my $children = 0; # sub REAPER { # takes care of dead children $SIG{CHLD} = \&REAPER; + &status("Handling child death"); my $pid = wait; if (defined($children{$pid})) { &logthis("Child $pid died"); @@ -587,25 +590,30 @@ sub REAPER { # ta } else { &logthis("Unknown Child $pid died"); } + &status("Finished Handling child death"); } sub HUNTSMAN { # signal handler for SIGINT + &status("Killing children (INT)"); local($SIG{CHLD}) = 'IGNORE'; # we're going to kill our children kill 'INT' => keys %children; &logthis("Free socket: ".shutdown($server,2)); # free up socket my $execdir=$perlvar{'lonDaemons'}; unlink("$execdir/logs/lond.pid"); &logthis("CRITICAL: Shutting down"); + &status("Done killing children"); exit; # clean up with dignity } sub HUPSMAN { # signal handler for SIGHUP local($SIG{CHLD}) = 'IGNORE'; # we're going to kill our children + &status("Killing children for restart (HUP)"); kill 'INT' => keys %children; &logthis("Free socket: ".shutdown($server,2)); # free up socket &logthis("CRITICAL: Restarting"); my $execdir=$perlvar{'lonDaemons'}; unlink("$execdir/logs/lond.pid"); + &status("Restarting self (HUP)"); exec("$execdir/lond"); # here we go again } @@ -667,6 +675,7 @@ sub ReloadApache { # now be honored. # sub UpdateHosts { + &status("Reload hosts.tab"); logthis(' Updating connections '); # # The %children hash has the set of IP's we currently have children @@ -691,10 +700,12 @@ sub UpdateHosts { } } ReloadApache; + &status("Finished reloading hosts.tab"); } sub checkchildren { + &status("Checking on the children (sending signals)"); &initnewstatus(); &logstatus(); &logthis('Going to check on the children'); @@ -709,6 +720,7 @@ sub checkchildren { sleep 5; $SIG{ALRM} = sub { die "timeout" }; $SIG{__DIE__} = 'DEFAULT'; + &status("Checking on the children (waiting for reports)"); foreach (sort keys %children) { unless (-e "$docdir/lon-status/londchld/$_.txt") { eval { @@ -726,6 +738,7 @@ sub checkchildren { } $SIG{ALRM} = 'DEFAULT'; $SIG{__DIE__} = \&catchexception; + &status("Finished checking children"); } # --------------------------------------------------------------------- Logging @@ -768,17 +781,20 @@ sub Reply { # ------------------------------------------------------------------ Log status sub logstatus { + &status("Doing logging"); my $docdir=$perlvar{'lonDocRoot'}; { my $fh=IO::File->new(">>$docdir/lon-status/londstatus.txt"); print $fh $$."\t".$currenthostid."\t".$status."\t".$lastlog."\n"; $fh->close(); } + &status("Finished londstatus.txt"); { my $fh=IO::File->new(">$docdir/lon-status/londchld/$$.txt"); print $fh $status."\n".$lastlog."\n".time; $fh->close(); } + &status("Finished logging"); } sub initnewstatus { @@ -966,8 +982,11 @@ ReadHostTable; # along the connection. while (1) { + &status('Starting accept'); $client = $server->accept() or next; + &status('Accepted '.$client.' off to spawn'); make_new_child($client); + &status('Finished spawning'); } sub make_new_child { @@ -976,6 +995,7 @@ sub make_new_child { my $sigset; $client = shift; + &status('Starting new child '.$client); &logthis(' Attempting to start child ('.$client. ")"); # block signal for fork