Cluster

Revision as of 09:41, 14 January 2009

Resin cluster

1. Cluster configuration documentation for Resin 4.0 is at http://www.caucho.com/resin/doc/resin-clustering.xtp.
2. <cluster> tag documentation for Resin 4.0 is at http://www.caucho.com/resin/doc/resin-clustering.xtp.

A Resin cluster is a collection of servers which do the same task. For example, all the load-balance servers form a cluster and all the application-servers in the app-tier form a cluster.

Configuration

A cluster is configured in a <cluster> tag in the resin.conf.

1. A set of servers, each with its own cluster port for cluster communication
2. A set of virtual hosts, each containing several web-apps serving pages
3. Shared resources like databases

example

A cluster with two servers might look like:

resin.xml

<resin xmlns="http://caucho.com/ns/resin"
           xmlns:resin="http://caucho.com/ns/resin/core">
  <resin:import path="${__DIR__}/app-default.xml"/>
 
  <cluster id="app-tier">
     <server id="a" address="192.168.0.10" port="6800"/>
     <server id="b" address="192.168.0.11" port="6800"/>

    <host id="www.foo.com">
         <root-directory>/var/www/www.foo.com</root-directory>

        <web-app-deploy path="webapps"/>
     </host>
  </cluster>
</resin>