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Running JRun in a simple distributed environment

A simple distributed configuration uses a dedicated computer for a web server and another computer dedicated as a JRun server. This is a common method of distributing the processing load across multiple computers.

The following figure shows a simple distributed installation:

Web server and JRun server running on different computers

Simple distributed installation

Macromedia recommends this way to configure JRun in a simple, one-to-one distributed environment.

To install JRun in a one-to-one distributed environment:

Install and run the Web Server Configuration tool on the web server computer, specifying the remote host and JRun server name.
Tip: The custom install option lets you install the Web Server Configuration tool separately.
To serve up JSPs in a distributed environment in which the machines do not share the same file system, you must use virtual path mapping properties. For more information, see "Using JSPs in a distributed environment".

When running the web server and JRun on different computers, ensure that the interface and bindAddress attributes for the ProxyService in the jrun.xml file are specified properly, as follows:

Interface Specifies the IP addresses of the web servers that can connect to JRun. Separate multiple values with a vertical bar (|). This attribute allows you to restrict external web server access to JRun. The default value for the interface attribute is 127.0.0.1. The Web Server Configuration tool automatically updates this attribute with the IP address of the web server computer.
BindAddress Specifies the IP address of the JRun server that will listen for external web servers.

You can also configure these attributes through the External Web Server Connection Configuration panel in the JMC.

Comments

sdechgan said on Oct 21, 2003 at 5:40 PM :

*Note:
1. Verify that the JRun version on the Web Server matches is the same version as the JRun Server. i.e. SP1, SP2. Otherwise the two servers wont' connect.
2.Verify the ISAPI Filter. This setting will specify to retrieve the Image files, JavaScripts, and Stylesheets from the Application Server. Otherwise the web server won't send any image, JavaScript, and Stylesheet from the WAR file on the JRun Server.

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Current page: http://livedocs.adobe.com/jrun/4/JRun_Administrators_Guide/connectors4.htm

JRun Administrator's Guide
Web Server Connectors