--- loncom/loncron 2013/02/08 14:49:51 1.98 +++ loncom/loncron 2015/09/20 18:31:21 1.103 @@ -2,7 +2,7 @@ # Housekeeping program, started by cron, loncontrol and loncron.pl # -# $Id: loncron,v 1.98 2013/02/08 14:49:51 raeburn Exp $ +# $Id: loncron,v 1.103 2015/09/20 18:31:21 raeburn Exp $ # # Copyright Michigan State University Board of Trustees # @@ -157,12 +157,12 @@ sub checkon_daemon { $errors++; my $kadaemon=$daemon; if ($kadaemon eq 'lonmemcached') { $kadaemon='memcached'; } - &log($fh,'
Killall '.$daemon.': '. + &log($fh,'
Killall '.$daemon.': '. `killall $kadaemon 2>&1`.' - '); sleep 1; &log($fh,unlink($pidfile).' - '. `killall -9 $kadaemon 2>&1`. - '
'); + '
'); &log($fh,"

$daemon not running, trying to start

"); if (&start_daemon($fh,$daemon,$pidfile,$args)) { @@ -285,9 +285,11 @@ sub start_logging { &log($fh,(< + + LON Status Report $perlvar{'lonHostID'} + @@ -298,6 +300,7 @@ sub start_logging {
  • Machine Information
  • Temporary Files
  • Session Tokens
    • +
  • WebDAV Session Tokens
  • httpd
  • lonsql
  • lond
    • @@ -328,15 +331,20 @@ ENDHEADERS "".$role. "".&Apache::lonnet::hostname($id)."\n"); } - &log($fh,"

    Spare Hosts

    \n"); return $fh; } @@ -482,7 +490,7 @@ sub clean_lonIDs { my $since=$now-$mtime; if ($since>$perlvar{'lonExpire'}) { $cleaned++; - &log($fh,"Unlinking $fname
    "); + &log($fh,"Unlinking $fname
    "); unlink("$fname"); } else { $active++; @@ -492,6 +500,32 @@ sub clean_lonIDs { &log($fh,"

    $active open session(s)

    "); } +# ------------------------------------------------ clean out webDAV Session IDs +sub clean_webDAV_sessionIDs { + my ($fh)=@_; + if ($perlvar{'lonRole'} eq 'library') { + &log($fh,'

    WebDAV Session Tokens

    '); + my $cleaned=0; + my $active=0; + my $now = time; + if (-d $perlvar{'lonDAVsessDir'}) { + while (my $fname=<$perlvar{'lonDAVsessDir'}/*>) { + my @stats = stat($fname); + my $since=$now-$stats[9]; + if ($since>$perlvar{'lonExpire'}) { + $cleaned++; + &log($fh,"Unlinking $fname
    "); + unlink("$fname"); + } else { + $active++; + } + } + &log($fh,"

    Cleaned up ".$cleaned." stale webDAV session token(s).

    "); + &log($fh,"

    $active open webDAV session(s)

    "); + } + } +} + # ----------------------------------------------------------- clean out sockets sub clean_sockets { my ($fh)=@_; @@ -526,7 +560,7 @@ sub check_httpd_logs { sub rotate_lonnet_logs { my ($fh)=@_; &log($fh,'

    lonnet

    Temp Log

    ');
-    print "checking logs\n";
+    print "Checking logs.\n";
     if (-e "$perlvar{'lonDaemons'}/logs/lonnet.log"){
 	open (DFH,"tail -n50 $perlvar{'lonDaemons'}/logs/lonnet.log|");
 	while (my $line=) { 
@@ -570,7 +604,7 @@ sub rotate_other_logs {
 sub test_connections {
     my ($fh)=@_;
     &log($fh,'
    Connections
    ');
-    print "testing connections\n";
+    print "Testing connections.\n";
     &log($fh,"");
     my ($good,$bad)=(0,0);
     my %hostname = &Apache::lonnet::all_hostnames();
@@ -604,7 +638,7 @@ sub test_connections {
 sub check_delayed_msg {
     my ($fh)=@_;
     &log($fh,'
    Delayed Messages
    ');
-    print "checking buffers\n";
+    print "Checking buffers.\n";
     
     &log($fh,'
    Scanning Permanent Log
    ');
 
@@ -615,7 +649,7 @@ sub check_delayed_msg {
 	my ($time,$sdf,$dserv,$dcmd)=split(/:/,$line);
 	if ($sdf eq 'F') { 
 	    my $local=localtime($time);
-	    &log($fh,"Failed: $time, $dserv, $dcmd
    ");
+	    &log($fh,"Failed: $time, $dserv, $dcmd
    ");
 	    $warnings++;
 	}
 	if ($sdf eq 'S') { $unsend--; }
@@ -654,7 +688,7 @@ sub check_delayed_msg {
             };
             if ($@ && $@ =~ m/TIMEOUT/) {
                 &log($fh,"Attempted pong to $tryserver timed out
    ");
-                print "time out while contacting: $tryserver for pong\n";
+                print "Time out while contacting: $tryserver for pong.\n";
             } else {
                 &log($fh,"Pong to $tryserver: $answer
    ");
             }
@@ -673,7 +707,7 @@ sub finish_logging {
     my $now=time;
     my $date=localtime($now);
     &log($fh,"
    $date ($now)\n");
-    print "lon-status webpage updated\n";
+    print "lon-status webpage updated.\n";
     $fh->close();
 
     if ($errors) { $simplestatus{'errors'}=$errors; }
@@ -694,59 +728,69 @@ sub log_simplestatus {
 }
 
 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;
+    print "Retrieving LON-CAPA version information.\n";
+    my %hostname = &Apache::lonnet::all_hostnames();
+    my $output;
+    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.\-]+$/) {
+                $output .= $id.':'.$loncaparev."\n";
+            }
+        }
+    }
+    if ($output) {
+        if (open(my $fh,">$perlvar{'lonTabDir'}/loncaparevs.tab")) {
+            print $fh $output;
+            close($fh);
+            &Apache::lonnet::load_loncaparevs();
+        }
+    }
+    return;
+}
+
+sub write_serverhomeIDs {
+    print "Retrieving LON-CAPA lonHostID information.\n";
+    my %name_to_host = &Apache::lonnet::all_names();
+    my $output;
+    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);
-                    $loncaparev =
-                        &Apache::lonnet::get_server_loncaparev('',$id,1,'loncron');
+                    $serverhomeID = 
+                        &Apache::lonnet::get_server_homeID($name,1,'loncron');
                     alarm(0);
                 };
                 if ($@ && $@ =~ m/TIMEOUT/) {
-                    print "time out while contacting lonHost: $id for version\n";   
+                    print "Time out while contacting server: $name\n"; 
                 }
-                if ($loncaparev =~ /^[\w.\-]+$/) {
-                    print $fh $id.':'.$loncaparev."\n";
+                if ($serverhomeID ne '') {
+                    $output .= $name.':'.$serverhomeID."\n";
+                } else {
+                    $output .= $name.':'.$name_to_host{$name}->[0]."\n";
                 }
             }
         }
-        close($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{$name}->[0]."\n";
-                    }
-                }
-            }
+    if ($output) {
+        if (open(my $fh,">$perlvar{'lonTabDir'}/serverhomeIDs.tab")) {
+            print $fh $output;
+            close($fh);
+            &Apache::lonnet::load_serverhomeIDs();
         }
-        close($fh);
     }
     return;
 }
@@ -772,7 +816,6 @@ sub write_checksums {
 }
 
 sub send_mail {
-    print "sending mail\n";
     my $defdom = $perlvar{'lonDefDomain'};
     my $origmail = $perlvar{'lonAdmEMail'};
     my $emailto = &Apache::loncommon::build_recipient_list(undef,
@@ -780,17 +823,40 @@ sub send_mail {
     if ($totalcount>2500) {
 	$emailto.=",$perlvar{'lonSysEMail'}";
     }
-    my $subj="LON: $perlvar{'lonHostID'} E:$errors W:$warnings N:$notices"; 
-
-    my $result=system("metasend -b -S 4000000 -t $emailto -s '$subj' -f $statusdir/index.html -m text/html >& /dev/null");
-    if ($result != 0) {
-	$result=system("mail -s '$subj' $emailto < $statusdir/index.html");
+    my $from;
+    my $hostname=`/bin/hostname`;
+    chop($hostname);
+    $hostname=~s/[^\w\.]//g;
+    if ($hostname) {
+        $from = 'www@'.$hostname;
+    }
+    my $subj="LON: $perlvar{'lonHostID'} E:$errors W:$warnings N:$notices";
+    my $loncronmail = "To: $emailto\n".
+                      "From: $from\n".
+                      "Subject: ".$subj."\n".
+                      "Content-type: text/html\; charset=UTF-8\n".
+                      "MIME-Version: 1.0\n\n";
+    if (open(my $fh,"<$statusdir/index.html")) {
+        while (<$fh>) {
+            $loncronmail .= $_;
+        }
+        close($fh);
+    } else {
+        $loncronmail .= "Failed to read from http://$hostname/lon-status/index.html\n";
+    }
+    $loncronmail .= "\n\n";
+    if (open(my $mailh, "|/usr/lib/sendmail -oi -t -odb")) {
+        print $mailh $loncronmail;
+        close($mailh);
+        print "Sending mail.\n";
+    } else {
+        print "Sending mail failed.\n";
     }
 }
 
 sub usage {
     print(< /dev/null");
 	exit 1;
     }
 
 # -------------------------------------------- Force reload of host information
-    &Apache::lonnet::load_hosts_tab(1);
-    &Apache::lonnet::load_domain_tab(1);
-    &Apache::lonnet::get_iphost(1);
+    my $nomemcache;
+    if ($justcheckdaemons) {
+        $nomemcache=1;
+        my $memcachepidfile="$perlvar{'lonDaemons'}/logs/memcached.pid";
+        my $memcachepid;
+        if (-e $memcachepidfile) {
+            my $memfh=IO::File->new($memcachepidfile);
+            $memcachepid=<$memfh>;
+            chomp($memcachepid);
+            if ($memcachepid =~ /^\d+$/ && kill 0 => $memcachepid) {
+                undef($nomemcache);
+            }
+        }
+    }
+    &Apache::lonnet::load_hosts_tab(1,$nomemcache);
+    &Apache::lonnet::load_domain_tab(1,$nomemcache);
+    &Apache::lonnet::get_iphost(1,$nomemcache);
 
 # ----------------------------------------- Force firewall update for lond port  
 
@@ -894,6 +974,7 @@ sub main () {
 	&log_machine_info($fh);
 	&clean_tmp($fh);
 	&clean_lonIDs($fh);
+        &clean_webDAV_sessionIDs($fh);
 	&check_httpd_logs($fh);
 	&rotate_lonnet_logs($fh);
 	&rotate_other_logs($fh);