Network Load Balancing Server in OpenSuse 11.1 Post: 302384780

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Operating Systems Linux SuSE Network Load Balancing Server in OpenSuse 11.1 Post 302384780 by talmoran on Wednesday 6th of January 2010 09:39:48 AM

01-06-2010

Registered User

Network Load Balancing Server

Hi,
For this solution:
install two identical servers with Linux OpenSUSE
In both servers this daemons will install: Heartbeat (HA Linux), HAproxy, HTTPD

1. The heartbeat daemon will manage the virtual IP (VIP) and the HAproxy daemon. The entire requested package goes through the VIP and only one HAproxy daemon will be up.

2. The HAproxy will work in active standby mode. The Heartbeat daemon will manage the failover of the HAproxy between the servers.

3. HAproxy transfer the http request to one of the web servers, the balancer algorithm can be use is:
� leastconn - The server with the lowest number of connections receives the connection. This algorithm is recommended where very long sessions are expected. leastconn is not very well suited for protocols using short sessions such as HTTP.
� Roundrobin - Each server is used in turns, according to their weights. This is the smoothest and fairest algorithm when the server's processing time remains equally distributed. This algorithm is dynamic, which means that server weights may be adjusted on the fly for slow starts for instance.

4. HAproxy check if the HTTPD daemon are up, in case one of the HTTPD daemon is down all the http request will forward the available web server.

Link:
HAProxy: http://haproxy.1wt.eu/
Heartbeat: http://www.linux-ha.org/Heartbeat

hope this help you,
Tal.

talmoran

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LEARN ABOUT DEBIAN

net::server::proto::udp

Net::Server::Proto::UDP(3pm)				User Contributed Perl Documentation			      Net::Server::Proto::UDP(3pm)

NAME

       Net::Server::Proto::UDP - Net::Server UDP protocol.

SYNOPSIS

       See Net::Server::Proto.

DESCRIPTION

       Protocol module for Net::Server.  This module implements the SOCK_DGRAM socket type under INET (also known as UDP).  See
       Net::Server::Proto.

PARAMETERS

       The following paramaters may be specified in addition to normal command line parameters for a Net::Server.  See Net::Server for more
       information on reading arguments.

       udp_recv_len
	   Specifies the number of bytes to read from the UDP connection handle.  Data will be read into $self->{'server'}->{'udp_data'}.  Default
	   is 4096.  See IO::Socket::INET and recv.

       udp_recv_flags
	   See recv.  Default is 0.

       udp_broadcast
	   Default is undef.

QUICK PARAMETER LIST

	 Key		   Value		    Default

	 ## UDP protocol parameters
	 udp_recv_len	   d+			    4096
	 udp_recv_flags    d+			    0
	 udp_broadcast	   bool 		    undef

INTERNAL METHODS

       "object"
	   Returns an object with parameters suitable for eventual creation of a IO::Socket::INET object listining on UDP.

       "connect"
	   Called when actually binding the port.  Handles default parameters before calling parent method.

LICENCE

       Distributed under the same terms as Net::Server

perl v5.14.2							    2012-05-29					      Net::Server::Proto::UDP(3pm)

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