If you have two or more servers load balancing, are the servers mirroring one another? If images, etc., are uploaded, will they be stored on all the servers so that if one server goes down, the images will be served up by another server? (1 Reply)
Hi guys, I wonder if someone would be able to assist with my problem. I have just set up a load balancer for a company I am working for. HTTP redirection is working fine, however they also want to load balance SSH and FTP too.
At the moment the perlbal config looks like;
CREATE POOL webhttp
... (1 Reply)
Is it possible to do a load balancing ( incoming and outgoing )with with IPMP in solaris 10 like sun trunking ? If yes what are the steps involved in it , i know how to do the failover IPMP both link based and probe based but i 'm looking for possible load balancing (3 Replies)
Hi All,
I have a webpage loaded on server1 with authorization enabled by .htaccess, which can be accessed by http://ipofserver1/index.html. Now im planning a high availabilty load balancing in such a way that if the server1 is down due to some reason it should connect to another server. i have... (1 Reply)
Hi Techies,
Setup details -
1. H/W Load Balancer
2. Two Apache Servers with load balancing and rewrite rule
3. Two Application servers
Request will be travel 1 then 2 then 3
Queries -
1. When any session is established I can see that requests of that session is going to both... (0 Replies)
Hi,
We have 2 pools of servers. Lets call them A and B and they would contain 2 servers each. Pool A will be hosting www.example.com/app/v1 and pool B will be hosting www.example.com/app/v2. Clients will be requesting right url (/v1 or /v2) but will be hitting just one IP.
I'd like to:
1)... (3 Replies)
Hi,
Currently we have 3 old and 3 new servers catering to Live traffic. As my component move from legacy interfaces to MQ one, we want to have load balancing of old interfaces available on MQ interface as well.
For this, we want to send only 30% of all MQ traffic on 3 OLD Live servers, and want... (1 Reply)
Hi,
I am working on development project where I have to migrate many jobs from Tidal to Autosys R11.
During this project we came across the following requirements.
1. There are 3 real machines. There could be many jobs activated simultaneously, but only one job should execute at a time and... (0 Replies)
Dear All,
Can any one help me for this request?
There is a case. I have 20 files which I need to FTP to 5 servers. I want to know if there is any possibility to make a load balancer which transfers files in round robin manner to 5 servers.
As per theoretical algorithm, what I think, flow can... (9 Replies)
Discussion started by: Zaib
9 Replies
LEARN ABOUT DEBIAN
apache::singleton
Apache::Singleton(3pm) User Contributed Perl Documentation Apache::Singleton(3pm)NAME
Apache::Singleton - Singleton class for mod_perl
VERSION
version 0.15
SYNOPSIS
package Printer;
# default:
# Request for mod_perl env
# Process for non-mod_perl env
use base qw(Apache::Singleton);
package Printer::PerRequest;
use base qw(Apache::Singleton::Request);
package Printer::PerProcess;
use base qw(Apache::Singleton::Process);
DESCRIPTION
Apache::Singleton works the same as Class::Singleton, but with various object lifetime (scope). See Class::Singleton first.
OBJECT LIFETIME
By inheriting one of the following sublasses of Apache::Singleton, you can change the scope of your object.
Request
use base qw(Apache::Singleton::Request);
One instance for one request. Apache::Singleton will remove instance on each request. Implemented using mod_perl "pnotes" API. In
mod_perl environment (where $ENV{MOD_PERL} is defined), this is the default scope, so inheriting from Apache::Singleton would do the
same effect.
NOTE: You need "PerlOptions +GlobalRequest" in your apache configuration in order to use the Request lifetime method.
Process
use base qw(Apache::Singleton::Process);
One instance for one httpd process. Implemented using package global. In non-mod_perl environment, this is the default scope, and you
may notice this is the same beaviour with Class::Singleton ;)
So you can use this module safely under non-mod_perl environment.
CREDITS
Original idea by Matt Sergeant <matt@sergeant.org> and Perrin Harkins <perrin@elem.com>.
Initial implementation and versions 0.01 to 0.07 by Tatsuhiko Miyagawa <miyagawa@bulknews.net>.
SEE ALSO
Apache::Singleton::Request, Apache::Singleton::Process, Class::Singleton
SOURCE
The development version is on github at http://github.com/mschout/apache-singleton <http://github.com/mschout/apache-singleton> and may be
cloned from git://github.com/mschout/apache-singleton.git <git://github.com/mschout/apache-singleton.git>
BUGS
Please report any bugs or feature requests to bug-apache-singleton@rt.cpan.org or through the web interface at:
http://rt.cpan.org/Public/Dist/Display.html?Name=Apache-Singleton
AUTHOR
Michael Schout <mschout@cpan.org>
COPYRIGHT AND LICENSE
This software is copyright (c) 2009 by Michael Schout.
This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.
perl v5.14.2 2012-04-02 Apache::Singleton(3pm)