Errors when adding aliases to virtual hosts after migration from WebSphere Application Server 3.5.3 to 3.5.5

Technote (FAQ)
Problem
Error "alias already in use by another virtual host" reported in administrative console when attempting to add a virtual host.
Solution

Background

WebSphere V3.5 Information Center states in Section 6.6.16.0:

"Properties of virtual hosts; Aliases must be unique within the administrative domain -- two virtual hosts cannot have the same alias... If two virtual hosts have the same alias, when a request arrives for that alias, the results will be unpredictable. The request could be routed to either host."

Problem

WebSphere version 3.5.3 did not prevent you from adding a duplicate alias to a virtual host. PTF 5 added a means of checking for duplicate aliases. If an alias is already in use in a virtual host, an error message is generated in the administrative console when you try to add a duplicated alias to the same or another virtual host within the administrative domain.

This same error message is generated when you try to add a new unique alias to a virtual host that has duplicates that were imported during the upgrade from 3.5.3 to 3.5.5. It does not prevent the import of duplicate aliases; however, it does prevent you from adding additional aliases to the virtual hosts containing duplicates, until the duplicates are removed.

Solution

  1. Verify that all existing aliases are unique to the administrative domain.
  2. Remove the duplicate aliases from the virtual hosts so that each alias is unique.
  3. Verify that the alias being added is unique to the administrative domain.
Historical Number
PMR 31487
227
000











Document Information

Product categories: Software, Application Servers, Distributed Application & Web Servers, WebSphere Application Server, Migration
Operating system(s): Multi-Platform
Software version: 3.5.3, 3.5.5
Software edition: Advanced Edition
Reference #: 1064017
IBM Group: Software Group
Modified date: 2004-07-27