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From "Adinarayana Kadiyam" <>
Subject Proxy Throughput Round-Robin
Date Mon, 22 Apr 2002 08:36:08 GMT

Hi ,
    In the Proxy Throughpult Round-Robin method for load balancing feature
available in Apache web server,  The mapping rules are like this.

RewriteEngine on
RewriteMap    lb      prg:/path/to/
RewriteRule   ^/(.+)$ ${lb:$1}           [P,L]

Where is some thing like this.

## -- load balancing script

$| = 1;

$name   = "www";     # the hostname base
$first  = 1;         # the first server (not 0 here, because 0 is myself) 
$last   = 5;         # the last server in the round-robin
$domain = "foo.dom"; # the domainname

$cnt = 0;
while (<STDIN>) {
    $cnt = (($cnt+1) % ($last+1-$first));
    $server = sprintf("%s%d.%s", $name, $cnt+$first, $domain);
    print "http://$server/$_";


It appends the path passed to it and constructs a new URL. 

Is there any way In which I can send the cookie information to this perl
script  as STDIN ?



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