Linux Cluster service LVS overview and installation configuration detailed

LVS project from the establishment up to now, received a lot of attention, LVS cluster system has been used in many heavy load of the site. The installation of LVS and the allocation of LVS work more complex, the reader in the process of configuration needs to be very careful and patient. In this paper, the application of LVs is briefly introduced, and the installation and configuration of LVS are emphatically introduced. (http://os.51cto.com/art/201011/233146.htm)

LVS project from the establishment up to now, received a lot of attention, LVS cluster system has been used in many heavy load of the site. So far, the system has been in the United States, Britain, Germany, Australia and other countries in the official use of dozens of sites. At present, some large LVS application examples are as follows:

The British National Janet Cache Service (Wwwcache.ja.net) provides Web cache services for more than 150 universities in the UK. They use 28 nodes of the LVS cluster instead of the original now more than 50 separate cache server, with their words now the same speed as the summer, because summer is a holiday during the period not many people use the network.

The Linux portal (www.linux.com) uses LVS to make many VA Linux SMP servers a high-performance Web service that has been in use for almost a year.

SourceForge (SourceForge.net) is a global provider of web, FTP, mailing list and CVS services for development source projects, and they also use LVS to dispatch the load to more than 10 machines.

One of the world's largest PC manufacturers employs two LVS trunking systems, one in America and one in Europe, for online direct marketing systems.

Real company (Www.real.com), renowned for providing audio and video services in RealPlayer, uses a LVS cluster of 20 servers to provide audio and video services to its global audience. In March 2000, the entire cluster system received an average of 20,000 connections per second of the request stream.

Netwalk (www.netwalk.com) uses multiple servers to construct the LVS system, offering 1024 virtual services, one of which is an American mirror site (www.us.linuxvirtualserver.org).

RedHat (www.redhat.com) already contains the LVS code from its 6.1 release, they developed a LVS cluster management tool called Piranha, which controls the LVS cluster and provides a graphical configuration interface.

VA Linux (www.valinux.com) provides the customer with the LVS based server cluster system and provides related services and support.

Installation LVs

The installation of LVS and the allocation of LVS work more complex, the reader in the process of configuration needs to be very careful and patient. We will describe it in detail in this section. The main steps include the following core procedures:

1. Get kernel source code to support LVS

If the reader needs to use LVS, download the 2.4.23 version of the kernel source code. The download address is http://www.kerner.org. Currently the mainstream Linux kernel has supported LVS, only to use directly, do not need to download and update the kernel.

2. User Configuration Tool Ipvsadm

The download address of the software is: http://www.linuxvirtualserver.org/software/ipvs.html.