--- loncom/loncron 2000/10/26 22:21:02 1.6
+++ loncom/loncron 2001/02/12 18:53:32 1.16
@@ -9,6 +9,9 @@
#
# 7/14,7/15,7/19,7/21,7/22,11/18,
# 2/8 Gerd Kortemeyer
+# Dec 00 Scott Harrison
+# 12/23 Gerd Kortemeyer
+# 02/12/2001 Scott Harrison
use IO::File;
use IO::Socket;
@@ -43,7 +46,6 @@ ENDERROUT
# ================================================================ Main Program
-
# ------------------------------------------------------------ Read access.conf
{
my $config=IO::File->new("/etc/httpd/conf/access.conf");
@@ -56,6 +58,31 @@ ENDERROUT
}
}
+# --------------------------------------- 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'}) {
+ print("Unconfigured machine.\n");
+ $emailto=$perlvar{'lonSysEMail'};
+ $hostname=`/bin/hostname`;
+ chop $hostname;
+ $hostname=~s/[^\w\.]//g; # make sure is safe to pass through shell
+ $subj="LON: Unconfigured machine $hostname";
+ system("echo 'Unconfigured machine $hostname.' |\
+ mailto $emailto -s '$subj' > /dev/null");
+ exit 1;
+}
+
+# ----------------------------- Make sure this process is running from user=www
+my $wwwid=getpwnam('www');
+if ($wwwid!=$<) {
+ print("User ID mismatch. This program must be run as user 'www'\n");
+ $emailto="$perlvar{'lonAdmEMail'},$perlvar{'lonSysEMail'}";
+ $subj="LON: $perlvar{'lonHostID'} User ID mismatch";
+ system("echo 'User ID mismatch. loncron must be run as user www.' |\
+ mailto $emailto -s '$subj' > /dev/null");
+ exit 1;
+}
+
# ------------------------------------------------------------- Read hosts file
{
my $config=IO::File->new("$perlvar{'lonTabDir'}/hosts.tab");
@@ -110,7 +137,10 @@ print $fh (<<ENDHEADERS);
<ol>
<li><a href="#configuration">Configuration</a>
<li><a href="#machine">Machine Information</a>
+<li><a href="#tmp">Temporary Files</a>
+<li><a href="#tokens">Session Tokens</a>
<li><a href="#httpd">httpd</a>
+<li><a href="#lonsql">lonsql</a>
<li><a href="#lond">lond</a>
<li><a href="#lonc">lonc</a>
<li><a href="#lonnet">lonnet</a>
@@ -182,6 +212,48 @@ while ($line=<DFH>) {
close (DFH);
print $fh "</pre>";
&errout($fh);
+
+# --------------------------------------------------------------- clean out tmp
+print $fh '<hr><a name="tmp"><h2>Temporary Files</h2>';
+$cleaned=0;
+while ($fname=<$perlvar{'lonDaemons'}/tmp/*>) {
+ my ($dev,$ino,$mode,$nlink,
+ $uid,$gid,$rdev,$size,
+ $atime,$mtime,$ctime,
+ $blksize,$blocks)=stat($fname);
+ $now=time;
+ $since=$now-$mtime;
+ if ($since>$perlvar{'lonExpire'}) {
+ $cleaned++;
+ unlink("$fname");
+ }
+
+}
+print $fh "Cleaned up ".$cleaned." files.";
+
+# ------------------------------------------------------------ clean out lonIDs
+print $fh '<hr><a name="tokens"><h2>Session Tokens</h2>';
+$cleaned=0;
+$active=0;
+while ($fname=<$perlvar{'lonIDsDir'}/*>) {
+ my ($dev,$ino,$mode,$nlink,
+ $uid,$gid,$rdev,$size,
+ $atime,$mtime,$ctime,
+ $blksize,$blocks)=stat($fname);
+ $now=time;
+ $since=$now-$mtime;
+ if ($since>$perlvar{'lonExpire'}) {
+ $cleaned++;
+ print $fh "Unlinking $fname<br>";
+ unlink("$fname");
+ } else {
+ $active++;
+ }
+
+}
+print $fh "<p>Cleaned up ".$cleaned." stale session token(s).";
+print $fh "<h3>$active open session(s)</h3>";
+
# ----------------------------------------------------------------------- httpd
print $fh '<hr><a name="httpd"><h2>httpd</h2><h3>Access Log</h3><pre>';
@@ -202,11 +274,13 @@ print $fh "</pre>";
&errout($fh);
-# ------------------------------------------------------------------------ lonsql
-
+# ---------------------------------------------------------------------- lonsql
+#
+# Do not run for now
+#
if ($perlvar{'lonRole'} eq "library" && 1==0) {
- print $fh '<hr><a name="lond"><h2>lonsql</h2><h3>Log</h3><pre>';
+ print $fh '<hr><a name="lonsql"><h2>lonsql</h2><h3>Log</h3><pre>';
if (-e "$perlvar{'lonDaemons'}/logs/lonsql.log"){
open (DFH,"tail -n100 $perlvar{'lonDaemons'}/logs/lonsql.log|");
@@ -235,7 +309,8 @@ if ($perlvar{'lonRole'} eq "library" &&
} else {
$errors++;
print $fh "<h3>lonsql not running, trying to start</h3>";
- system("$perlvar{'lonDaemons'}/lonsql");
+ system(
+ "$perlvar{'lonDaemons'}/lonsql 2>>$perlvar{'lonDaemons'}/logs/lonsql_errors");
sleep 120;
if (-e $lonsqlfile) {
print $fh "Seems like it started ...<p>";
@@ -249,7 +324,8 @@ if ($perlvar{'lonRole'} eq "library" &&
$errors++; $errors++;
print $fh "<h3>lonsql at pid $lonsqlpid not responding</h3>";
print $fh "Give it one more try ...<p>";
- system("$perlvar{'lonDaemons'}/lonsql");
+ system(
+ "$perlvar{'lonDaemons'}/lonsql 2>>$perlvar{'lonDaemons'}/logs/lonsql_errors");
sleep 120;
}
} else {
@@ -303,20 +379,41 @@ print $fh "</pre>";
my $londfile="$perlvar{'lonDaemons'}/logs/lond.pid";
-if (-e $londfile) {
+my $restartflag=1;
+if (-e $londfile) {
my $lfh=IO::File->new("$londfile");
my $londpid=<$lfh>;
chomp($londpid);
if (kill 0 => $londpid) {
print $fh "<h3>lond at pid $londpid responding</h3>";
+ $restartflag=0;
} else {
- $errors++; $errors++;
+ $errors++;
print $fh "<h3>lond at pid $londpid not responding</h3>";
+ # Intelligently handle this.
+ # Possibility #1: there is no process
+ # Solution: remove .pid file and restart
+ if (getpgrp($londpid)==-1) {
+ unlink($londfile);
+ $restartflag=1;
+ }
+ else {
+ # Possibility #2: there is a live process that is not responding
+ # for an unknown reason
+ # Solution: kill parent and children processes, remove .pid and restart
+ `killall -9 lond`;
+ unlink($londfile);
+ $restartflag=1;
+ }
+ print $fh
+ "<h3>Deciding to clean up stale .pid file and restart lond</h3>";
}
-} else {
+}
+if ($restartflag==1) {
$errors++;
print $fh "<h3>lond not running, trying to start</h3>";
- system("$perlvar{'lonDaemons'}/lond");
+ system(
+ "$perlvar{'lonDaemons'}/lond 2>>$perlvar{'lonDaemons'}/logs/lond_errors");
sleep 120;
if (-e $londfile) {
print $fh "Seems like it started ...<p>";
@@ -330,7 +427,8 @@ if (-e $londfile) {
$errors++; $errors++;
print $fh "<h3>lond at pid $londpid not responding</h3>";
print $fh "Give it one more try ...<p>";
- system("$perlvar{'lonDaemons'}/lond");
+ system(
+ "$perlvar{'lonDaemons'}/lond 2>>$perlvar{'lonDaemons'}/logs/lond_errors");
sleep 120;
}
} else {
@@ -383,6 +481,7 @@ print $fh "</pre>";
my $loncfile="$perlvar{'lonDaemons'}/logs/lonc.pid";
+$restartflag=1;
if (-e $loncfile) {
my $lfh=IO::File->new("$loncfile");
my $loncpid=<$lfh>;
@@ -390,14 +489,34 @@ if (-e $loncfile) {
if (kill 0 => $loncpid) {
print $fh "<h3>lonc at pid $loncpid responding, sending USR1</h3>";
kill USR1 => $loncpid;
+ $restartflag=0;
} else {
- $errors++; $errors++;
+ $errors++;
print $fh "<h3>lonc at pid $loncpid not responding</h3>";
+ # Intelligently handle this.
+ # Possibility #1: there is no process
+ # Solution: remove .pid file and restart
+ if (getpgrp($loncpid)==-1) {
+ unlink($loncfile);
+ $restartflag=1;
+ }
+ else {
+ # Possibility #2: there is a live process that is not responding
+ # for an unknown reason
+ # Solution: kill parent and children processes, remove .pid and restart
+ `killall -9 lonc`;
+ unlink($loncfile);
+ $restartflag=1;
+ }
+ print $fh
+ "<h3>Deciding to clean up stale .pid file and restart lonc</h3>";
}
-} else {
+}
+if ($restartflag==1) {
$errors++;
print $fh "<h3>lonc not running, trying to start</h3>";
- system("$perlvar{'lonDaemons'}/lonc");
+ system(
+ "$perlvar{'lonDaemons'}/lond 2>>$perlvar{'lonDaemons'}/logs/lonc_errors");
sleep 120;
if (-e $loncfile) {
print $fh "Seems like it started ...<p>";
@@ -411,7 +530,8 @@ if (-e $loncfile) {
$errors++; $errors++;
print $fh "<h3>lonc at pid $loncpid not responding</h3>";
print $fh "Give it one more try ...<p>";
- system("$perlvar{'lonDaemons'}/lonc");
+ system(
+ "$perlvar{'lonDaemons'}/lond 2>>$perlvar{'lonDaemons'}/logs/lonc_errors");
sleep 120;
}
} else {
@@ -457,7 +577,7 @@ while ($line=<DFH>) {
};
close (DFH);
}
-print $fh "</pre><h3>Perm Log</h3>";
+print $fh "</pre><h3>Perm Log</h3><pre>";
if (-e "$perlvar{'lonDaemons'}/logs/lonnet.perm.log") {
open(DFH,"tail -n10 $perlvar{'lonDaemons'}/logs/lonnet.perm.log|");