Web Tier ( OHS ) 12c Fails to Start - " Invalid Host name : null or empty " / " Invalid instance "
(Doc ID 1592480.1)
Last updated on SEPTEMBER 21, 2021
Applies to:Oracle WebLogic Server - Version 188.8.131.52.0 to 184.108.40.206.0 [Release 12c]
Enterprise Manager for Fusion Middleware - Version 220.127.116.11.0 to 18.104.22.168.0 [Release 12c]
Oracle Fusion Middleware - Version 22.214.171.124.0 to 126.96.36.199.0 [Release 12c]
Oracle HTTP Server - Version 188.8.131.52.0 to 184.108.40.206.0 [Release 12c]
Information in this document applies to any platform.
Oracle Web Tier ( Oracle HTTP Server ) 12c has just been installed and configured as per
Oracle Fusion Middleware Documentation
Installing and Configuring Oracle HTTP Server
Chapter 3 Configuring Oracle HTTP Server in a WebLogic Server Domain
The Admin Server and Node Manager have been started successfully. And the WebLogic Server Console and Oracle Enterprise Manager Fusion Middleware Control are accessible.
Starting the Web Tier via Fusion Middleware Control with the message "Operation Failed: Status is SHUTDOWN". Viewing logs reveals the AdminServer is throwing the error "Invalid Host name : null or empty". See screenshots below:
Figure 1: Operation Failed: Status is SHUTDOWN
Figure 2: Viewing Logs - An Application Deployment error is initially highlight
Figure 3 : It is the earlier "Invalid host name" which is of more significance
An attempt to start HTTP Server via the startComponent script also fails with the following error stack e.g.
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