In WAS 4.0.x (where x > 1), editing the ServerGroup for the "System Properties" will not propagate the changes to clones
 Technote
 
Problem
Editing the ServerGroup for the "System Properties" will not propagate the changes to clones
 
 
Solution
The "System Properties" has been changed to be a Clone-Only attribute on WebSphere Application Server 4, for PTF 2, and above. The "System Properties" will not be propagated to the clones, but the user can add/modify the properties in the clone attributes.

The reason for the change of the design on WAS 4.0.2 is because on 4.0.1, one can add the "System Properties" to the clones only through the Server Group and the system properties field on the clones is "uneditable". The "System Properties" for a server group are copied into all clones. This has the potential of causing a critical error when starting the server group

in many situations.

For example:


The server group contains application servers (clones) on different system platforms. We add a system properties with some path specified for a server group to enable security. The server group contains 20 application servers, 10 of which are on AIX machine(s), and the others on NT machine(s).

was.home=c:/WebSphere/AppServer
enable.Java2Security=true
java.security.policy=c:/WebSphere/AppServer/properties/java.policy


If we propogate the system properties to all clones (application servers), it would fail to start the application servers on any AIX node since the WAS install path on AIX is different from the NT. The user has to change the properties for the clones on any AIX node to their local directory (e.g.,
was.home=/usr/WebSphere/AppServer ...).

However, the System Properties field on the clones is "uneditable" on 4.0.1. This is clearly incorrect behavior, thus the "System Properties" were changed to be a Clone-Only Attribute on 4.0.2 release, and beyond.
 
 
 


Document Information


Product categories: Software > Application Servers > Distributed Application & Web Servers > WebSphere Application Server > Workload Management (WLM)
Operating system(s): Multi-Platform
Software version: 4.0.4
Software edition:
Reference #: 1054848
IBM Group: Software Group
Modified date: Jul 23, 2002