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src/docs/user/cluster/cluster_webservers.diviner

	@title Cluster: Web Servers			@title Cluster: Web Servers
	@group cluster			@group cluster

	Configuring Phabricator to use multiple web servers.			Configuring Phorge to use multiple web servers.

	Overview			Overview
	========			========

	You can run Phabricator on multiple web servers. The advantages of doing this			You can run Phorge on multiple web servers. The advantages of doing this
	are:			are:

	- you can completely survive the loss of multiple web hosts; and			- you can completely survive the loss of multiple web hosts; and
	- performance and capacity may improve.			- performance and capacity may improve.

	This configuration is simple, but you must configure repositories first. For			This configuration is simple, but you must configure repositories first. For
	details, see @{article:Cluster: Repositories}.			details, see @{article:Cluster: Repositories}.


	Adding Web Hosts			Adding Web Hosts
	================			================

	After configuring repositories in cluster mode, you can add more web hosts			After configuring repositories in cluster mode, you can add more web hosts
	at any time.			at any time.

	First, deploy the Phabricator software and configuration to a host, then			First, deploy the Phorge software and configuration to a host, then
	register the host as a cluster device if it is not already registered (for			register the host as a cluster device if it is not already registered (for
	help, see @{article:Cluster: Devices}.)			help, see @{article:Cluster: Devices}.)

	Once the host is registered, start the web server, and then add the host to the			Once the host is registered, start the web server, and then add the host to the
	load balancer pool.			load balancer pool.

	Phabricator web servers are stateless, so you can pull them in and out of			Phorge web servers are stateless, so you can pull them in and out of
	production freely.			production freely.

	You may also want to run SSH services on these hosts, since the service is very			You may also want to run SSH services on these hosts, since the service is very
	similar to HTTP, also stateless, and it may be simpler to load balance the			similar to HTTP, also stateless, and it may be simpler to load balance the
	services together. For details, see @{article:Cluster: SSH Servers}.			services together. For details, see @{article:Cluster: SSH Servers}.


	Next Steps			Next Steps
	==========			==========

	Continue by:			Continue by:

	- returning to @{article:Clustering Introduction}.			- returning to @{article:Clustering Introduction}.