[BACK]Return to lonsql CVS log [TXT] [DIR] Up to [LON-CAPA] / loncom

Diff for /loncom/lonsql between versions 1.38 and 1.40

version 1.38, 2001/11/28 21:49:27 version 1.40, 2001/11/29 14:59:52
Line 1 Line 1
 #!/usr/bin/perl  #!/usr/bin/perl
   
   # The LearningOnline Network
   # lonsql - LON TCP-MySQL-Server Daemon for handling database requests.
   #
   # YEAR=2000
 # lonsql-based on the preforker:harsha jagasia:date:5/10/00  # lonsql-based on the preforker:harsha jagasia:date:5/10/00
 # 7/25 Gerd Kortemeyer  # 7/25 Gerd Kortemeyer
 # many different dates Scott Harrison  # many different dates Scott Harrison
   # YEAR=2001
   # many different dates Scott Harrison
 # 03/22/2001 Scott Harrison  # 03/22/2001 Scott Harrison
 # 8/30 Gerd Kortemeyer  # 8/30 Gerd Kortemeyer
   # 10/17,11/28,11/29 Scott Harrison
   #
   # $Id$
   ###
   
   ###############################################################################
   ##                                                                           ##
   ## ORGANIZATION OF THIS PERL SCRIPT                                          ##
   ## 1. Modules used                                                           ##
   ## 2. Enable find subroutine                                                 ##
   ## 3. Read httpd access.conf and get variables                               ##
   ## 4. Make sure that database can be accessed                                ##
   ## 5. Make sure this process is running from user=www                        ##
   ## 6. Check if other instance is running                                     ##
   ## 7. POD (plain old documentation, CPAN style)                              ##
   ##                                                                           ##
   ###############################################################################
   
 use IO::Socket;  use IO::Socket;
 use Symbol;  use Symbol;
Line 424  sub propath { Line 448  sub propath {
     my $proname="$perlvar{'lonUsersDir'}/$udom/$subdir/$uname";      my $proname="$perlvar{'lonUsersDir'}/$udom/$subdir/$uname";
     return $proname;      return $proname;
 }   } 
   
   # ----------------------------------- POD (plain old documentation, CPAN style)
   
   =head1 NAME
   
   lonsql - LON TCP-MySQL-Server Daemon for handling database requests.
   
   =head1 SYNOPSIS
   
   This script should be run as user=www.  The following is an example invocation
   from the loncron script.  Note that a lonsql.pid file contains the pid of
   the parent process.
   
       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 $fh 
       "<h3>Decided to clean up stale .pid file and restart lonsql</h3>";
    }
       }
       if ($restartflag==1) {
    $errors++;
            print $fh '<br><font color="red">Killall lonsql: '.
                       system('killall lonsql').' - ';
                       sleep 60;
                       print $fh unlink($lonsqlfile).' - '.
                                 system('killall -9 lonsql').
                       '</font><br>';
    print $fh "<h3>lonsql not running, trying to start</h3>";
    system(
    "$perlvar{'lonDaemons'}/lonsql 2>>$perlvar{'lonDaemons'}/logs/lonsql_errors");
    sleep 10;
   
   =head1 DESCRIPTION
   
   LON TCP-MySQL-Server Daemon for handling database requests.
   
   =head1 README
   
   LON TCP-MySQL-Server Daemon for handling database requests.
   
   =head1 PREREQUISITES
   
   IO::Socket
   Symbol
   POSIX
   IO::Select
   IO::File
   Socket
   Fcntl
   Tie::RefHash
   DBI
   
   =head1 COREQUISITES
   
   =head1 OSNAMES
   
   linux
   
   =head1 SCRIPT CATEGORIES
   
   Server/Process
   
   =cut
Removed from v.1.38  
changed lines
  Added in v.1.40

FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>