--- loncom/loncron 2000/12/08 23:33:36 1.9
+++ loncom/loncron 2002/09/09 13:59:16 1.33
@@ -9,6 +9,18 @@
#
# 7/14,7/15,7/19,7/21,7/22,11/18,
# 2/8 Gerd Kortemeyer
+# 12/6/2000,12/8 Scott Harrison
+# 12/23 Gerd Kortemeyer
+# YEAR=2001
+# 1/10/2001, 2/12/, 2/26, 3/15, 04/11, 04/21,8/27 Scott Harrison
+# 09/04,09/06,11/26 Gerd Kortemeyer
+# YEAR=2002
+# 5/11/2002 Scott Harrison
+
+$|=1;
+
+use lib '/home/httpd/lib/perl/';
+use LONCAPA::Configuration;
use IO::File;
use IO::Socket;
@@ -43,17 +55,36 @@ ENDERROUT
# ================================================================ Main Program
-
-# ------------------------------------------------------------ Read access.conf
-{
- my $config=IO::File->new("/etc/httpd/conf/access.conf");
-
- while (my $configline=<$config>) {
- if ($configline =~ /PerlSetVar/) {
- my ($dummy,$varname,$varvalue)=split(/\s+/,$configline);
- $perlvar{$varname}=$varvalue;
- }
- }
+# --------------------------------- Read loncapa_apache.conf and loncapa.conf
+my $perlvarref=LONCAPA::Configuration::read_conf('loncapa.conf');
+%perlvar=%{$perlvarref};
+undef $perlvarref;
+delete $perlvar{'lonReceipt'}; # remove since sensitive and not needed
+delete $perlvar{'lonSqlAccess'}; # remove since sensitive and not needed
+
+# --------------------------------------- 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
@@ -61,14 +92,21 @@ ENDERROUT
my $config=IO::File->new("$perlvar{'lonTabDir'}/hosts.tab");
while (my $configline=<$config>) {
- my ($id,$domain,$role,$name,$ip)=split(/:/,$configline);
- $hostname{$id}=$name;
- $hostdom{$id}=$domain;
- $hostrole{$id}=$role;
- $hostip{$id}=$ip;
- if (($role eq 'library') && ($id ne $perlvar{'lonHostID'})) {
- $libserv{$id}=$name;
- }
+ my ($id,$domain,$role,$name,$ip,$domdescr)=split(/:/,$configline);
+ if ($id && $domain && $role && $name && $ip) {
+ $hostname{$id}=$name;
+ $hostdom{$id}=$domain;
+ $hostip{$id}=$ip;
+ $hostrole{$id}=$role;
+ if ($domdescr) { $domaindescription{$domain}=$domdescr; }
+ if (($role eq 'library') && ($id ne $perlvar{'lonHostID'})) {
+ $libserv{$id}=$name;
+ }
+ } else {
+ if ($configline) {
+# &logthis("Skipping hosts.tab line -$configline-");
+ }
+ }
}
}
@@ -110,7 +148,10 @@ 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>
@@ -125,17 +166,17 @@ print $fh (<<ENDHEADERS);
<table border=2>
ENDHEADERS
-foreach $varname (keys %perlvar) {
+foreach $varname (sort(keys(%perlvar))) {
print $fh "<tr><td>$varname</td><td>$perlvar{$varname}</td></tr>\n";
}
print $fh "</table><h3>Hosts</h3><table border=2>";
-foreach $id (keys %hostname) {
-print $fh
- "<tr><td>$id</td><td>$hostdom{$id}</td><td>$hostrole{$id}</td>";
-print $fh "<td>$hostname{$id}</td><td>$hostip{$id}</td></tr>\n";
+foreach $id (sort(keys(%hostname))) {
+ print $fh
+ "<tr><td>$id</td><td>$hostdom{$id}</td><td>$hostrole{$id}</td>";
+ print $fh "<td>$hostname{$id}</td><td>$hostip{$id}</td></tr>\n";
}
print $fh "</table><h3>Spare Hosts</h3><ol>";
-foreach $id (keys %spareid) {
+foreach $id (sort(keys(%spareid))) {
print $fh "<li>$id\n";
}
@@ -171,7 +212,8 @@ while ($line=<DFH>) {
$usage=$parts[4];
$usage=~s/\W//g;
if ($usage>90) {
- $warnings++;
+ $warnings++;
+ $notices++;
} elsif ($usage>80) {
$warnings++;
} elsif ($usage>60) {
@@ -181,18 +223,90 @@ while ($line=<DFH>) {
}
close (DFH);
print $fh "</pre>";
+
+
+print $fh "<h3>ps</h3>";
+print $fh "<pre>";
+$psproc=0;
+
+open (PSH,"ps -aux|");
+while ($line=<PSH>) {
+ print $fh "$line";
+ $psproc++;
+}
+close (PSH);
+print $fh "</pre>";
+
+if ($psproc>200) { $notices++; }
+if ($psproc>250) { $notices++; }
+
&errout($fh);
+
+# --------------------------------------------------------------- clean out tmp
+print $fh '<hr><a name="tmp"><h2>Temporary Files</h2>';
+$cleaned=0;
+$old=0;
+while ($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'}) {
+ $line='';
+ if (open(PROBE,$fname)) {
+ $line=<PROBE>;
+ close(PROBE);
+ }
+ unless ($line=~/^CHECKOUTTOKEN\&/) {
+ $cleaned++;
+ unlink("$fname");
+ } else {
+ if ($since>365*$perlvar{'lonExpire'}) {
+ $cleaned++;
+ unlink("$fname");
+ } else { $old++; }
+ }
+ }
+
+}
+print $fh "Cleaned up ".$cleaned." files (".$old." old checkout tokens).";
+
+# ------------------------------------------------------------ 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 $fh '<hr><a name="httpd"><h2>httpd</h2><h3>Access Log</h3><pre>';
-open (DFH,"tail -n40 /etc/httpd/logs/access_log|");
+open (DFH,"tail -n25 /etc/httpd/logs/access_log|");
while ($line=<DFH>) { print $fh "$line" };
close (DFH);
print $fh "</pre><h3>Error Log</h3><pre>";
-open (DFH,"tail -n50 /etc/httpd/logs/error_log|");
+open (DFH,"tail -n25 /etc/httpd/logs/error_log|");
while ($line=<DFH>) {
print $fh "$line";
if ($line=~/\[error\]/) { $notices++; }
@@ -202,12 +316,13 @@ print $fh "</pre>";
&errout($fh);
-# ------------------------------------------------------------------------ lonsql
+# ---------------------------------------------------------------------- lonsql
-if ($perlvar{'lonRole'} eq "library" && 1==0) {
+my $restartflag=1;
+if ($perlvar{'lonRole'} eq "library") {
- print $fh '<hr><a name="lond"><h2>lonsql</h2><h3>Log</h3><pre>';
-
+ print $fh '<hr><a name="lonsql"><h2>lonsql</h2><h3>Log</h3><pre>';
+ print "lonsql\n";
if (-e "$perlvar{'lonDaemons'}/logs/lonsql.log"){
open (DFH,"tail -n100 $perlvar{'lonDaemons'}/logs/lonsql.log|");
while ($line=<DFH>) {
@@ -221,36 +336,51 @@ if ($perlvar{'lonRole'} eq "library" &&
print $fh "</pre>";
my $lonsqlfile="$perlvar{'lonDaemons'}/logs/lonsql.pid";
-
+
+ $restartflag=1;
+
if (-e $lonsqlfile) {
my $lfh=IO::File->new("$lonsqlfile");
my $lonsqlpid=<$lfh>;
chomp($lonsqlpid);
if (kill 0 => $lonsqlpid) {
print $fh "<h3>lonsql at pid $lonsqlpid responding</h3>";
+ $restartflag=0;
} else {
$errors++; $errors++;
print $fh "<h3>lonsql at pid $lonsqlpid not responding</h3>";
+ $restartflag=1;
+ print $fh
+ "<h3>Decided to clean up stale .pid file and restart lonsql</h3>";
}
- } else {
+ }
+ if ($restartflag==1) {
$errors++;
+ print $fh '<br><font color="red">Killall lonsql: '.
+ system('killall lonsql').' - ';
+ sleep 2;
+ print $fh unlink($lonsqlfile).' - '.
+ system('killall -9 lonsql').
+ '</font><br>';
print $fh "<h3>lonsql not running, trying to start</h3>";
- system("$perlvar{'lonDaemons'}/lonsql");
- sleep 120;
+ system(
+ "$perlvar{'lonDaemons'}/lonsql 2>>$perlvar{'lonDaemons'}/logs/lonsql_errors");
+ sleep 2;
if (-e $lonsqlfile) {
print $fh "Seems like it started ...<p>";
my $lfh=IO::File->new("$lonsqlfile");
my $lonsqlpid=<$lfh>;
chomp($lonsqlpid);
- sleep 30;
+ sleep 2;
if (kill 0 => $lonsqlpid) {
print $fh "<h3>lonsql at pid $lonsqlpid responding</h3>";
} else {
$errors++; $errors++;
print $fh "<h3>lonsql at pid $lonsqlpid not responding</h3>";
print $fh "Give it one more try ...<p>";
- system("$perlvar{'lonDaemons'}/lonsql");
- sleep 120;
+ system(
+ "$perlvar{'lonDaemons'}/lonsql 2>>$perlvar{'lonDaemons'}/logs/lonsql_errors");
+ sleep 2;
}
} else {
print $fh "Seems like that did not work!<p>";
@@ -288,9 +418,10 @@ if ($perlvar{'lonRole'} eq "library" &&
# ------------------------------------------------------------------------ lond
print $fh '<hr><a name="lond"><h2>lond</h2><h3>Log</h3><pre>';
+print "lond\n";
if (-e "$perlvar{'lonDaemons'}/logs/lond.log"){
-open (DFH,"tail -n100 $perlvar{'lonDaemons'}/logs/lond.log|");
+open (DFH,"tail -n25 $perlvar{'lonDaemons'}/logs/lond.log|");
while ($line=<DFH>) {
print $fh "$line";
if ($line=~/INFO/) { $notices++; }
@@ -303,56 +434,49 @@ print $fh "</pre>";
my $londfile="$perlvar{'lonDaemons'}/logs/lond.pid";
-my $restartflag=1;
+$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>";
+ print $fh "<h3>lond at pid $londpid responding, sending USR1</h3>";
+ kill USR1 => $londpid;
$restartflag=0;
} else {
$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);
- $restartflag=1;
- }
- else {
- # Possibility #2: there is a zombie process
- # Possibility #3: there is a live process that is not responding
- # for an unknown reason
- # Solution: kill process, remove .pid and restart
- `killall -9 lond`;
- unlink($londfile);
- $restartflag=1;
- }
+ $restartflag=1;
print $fh
- "<h3>Deciding to clean up stale .pid file and restart lond</h3>";
+ "<h3>Decided to clean up stale .pid file and restart lond</h3>";
}
}
if ($restartflag==1) {
$errors++;
+ print $fh '<br><font color="red">Killall lond: '.
+ system('killall lond').' - ';
+ sleep 2;
+ print $fh unlink($londfile).' - '.system('killall -9 lond').
+ '</font><br>';
print $fh "<h3>lond not running, trying to start</h3>";
- system("$perlvar{'lonDaemons'}/lond");
- sleep 120;
+ system(
+ "$perlvar{'lonDaemons'}/lond 2>>$perlvar{'lonDaemons'}/logs/lond_errors");
+ sleep 2;
if (-e $londfile) {
print $fh "Seems like it started ...<p>";
my $lfh=IO::File->new("$londfile");
my $londpid=<$lfh>;
chomp($londpid);
- sleep 30;
+ sleep 2;
if (kill 0 => $londpid) {
print $fh "<h3>lond at pid $londpid responding</h3>";
} else {
$errors++; $errors++;
print $fh "<h3>lond at pid $londpid not responding</h3>";
print $fh "Give it one more try ...<p>";
- system("$perlvar{'lonDaemons'}/lond");
- sleep 120;
+ system(
+ "$perlvar{'lonDaemons'}/lond 2>>$perlvar{'lonDaemons'}/logs/lond_errors");
+ sleep 2;
}
} else {
print $fh "Seems like that did not work!<p>";
@@ -389,9 +513,10 @@ if ($size>40000) {
# ------------------------------------------------------------------------ lonc
print $fh '<hr><a name="lonc"><h2>lonc</h2><h3>Log</h3><pre>';
+print "lonc\n";
if (-e "$perlvar{'lonDaemons'}/logs/lonc.log"){
-open (DFH,"tail -n100 $perlvar{'lonDaemons'}/logs/lonc.log|");
+open (DFH,"tail -n25 $perlvar{'lonDaemons'}/logs/lonc.log|");
while ($line=<DFH>) {
print $fh "$line";
if ($line=~/INFO/) { $notices++; }
@@ -416,45 +541,38 @@ if (-e $loncfile) {
} else {
$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);
- $restartflag=1;
- }
- else {
- # Possibility #2: there is a zombie process
- # Possibility #3: there is a live process that is not responding
- # for an unknown reason
- # Solution: kill process, remove .pid and restart
- `killall -9 lonc`;
- unlink($loncfile);
+ # Solution: kill parent and children processes, remove .pid and restart
$restartflag=1;
- }
print $fh
- "<h3>Deciding to clean up stale .pid file and restart lonc</h3>";
+ "<h3>Decided to clean up stale .pid file and restart lonc</h3>";
}
}
if ($restartflag==1) {
$errors++;
+ print $fh '<br><font color="red">Killall lonc: '.
+ system('killall lonc').' - ';
+ sleep 2;
+ print $fh unlink($loncfile).' - '.system('killall -9 lonc').
+ '</font><br>';
print $fh "<h3>lonc not running, trying to start</h3>";
- system("$perlvar{'lonDaemons'}/lonc");
- sleep 120;
+ system(
+ "$perlvar{'lonDaemons'}/lonc 2>>$perlvar{'lonDaemons'}/logs/lonc_errors");
+ sleep 2;
if (-e $loncfile) {
print $fh "Seems like it started ...<p>";
my $lfh=IO::File->new("$loncfile");
my $loncpid=<$lfh>;
chomp($loncpid);
- sleep 30;
+ sleep 2;
if (kill 0 => $loncpid) {
print $fh "<h3>lonc at pid $loncpid responding</h3>";
} else {
$errors++; $errors++;
print $fh "<h3>lonc at pid $loncpid not responding</h3>";
print $fh "Give it one more try ...<p>";
- system("$perlvar{'lonDaemons'}/lonc");
- sleep 120;
+ system(
+ "$perlvar{'lonDaemons'}/lonc 2>>$perlvar{'lonDaemons'}/logs/lonc_errors");
+ sleep 2;
}
} else {
print $fh "Seems like that did not work!<p>";
@@ -492,6 +610,7 @@ if ($size>40000) {
# ---------------------------------------------------------------------- lonnet
print $fh '<hr><a name="lonnet"><h2>lonnet</h2><h3>Temp Log</h3><pre>';
+print "lonnet\n";
if (-e "$perlvar{'lonDaemons'}/logs/lonnet.log"){
open (DFH,"tail -n50 $perlvar{'lonDaemons'}/logs/lonnet.log|");
while ($line=<DFH>) {
@@ -499,7 +618,7 @@ 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|");
@@ -530,7 +649,7 @@ print $fh "</pre>";
print $fh '<hr><a name="connections"><h2>Connections</h2>';
print $fh "<table border=2>";
-foreach $tryserver (keys %hostname) {
+foreach $tryserver (sort(keys(%hostname))) {
$answer=reply("pong",$tryserver);
if ($answer eq "$tryserver:$perlvar{'lonHostID'}") {
@@ -549,6 +668,7 @@ print $fh "</table>";
# ------------------------------------------------------------ Delayed messages
print $fh '<hr><a name="delayed"><h2>Delayed Messages</h2>';
+print "buffers\n";
print $fh '<h3>Scanning Permanent Log</h3>';
@@ -585,12 +705,13 @@ print $fh "<h1>Total Error Count: $total
$now=time;
$date=localtime($now);
print $fh "<hr>$date ($now)</body></html>\n";
-
+print "writing done\n";
}
rename ("$statusdir/newstatus.html","$statusdir/index.html");
if ($totalcount>200) {
+ print "mailing\n";
$emailto="$perlvar{'lonAdmEMail'},$perlvar{'lonSysEMail'}";
$subj="LON: $perlvar{'lonHostID'} E:$errors W:$warnings N:$notices";
system(