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Web Tier ( OHS ) 12c Fails to Start - " Invalid Host name : null or empty " / " Invalid instance " (Doc ID 1592480.1)

Last updated on FEBRUARY 16, 2017

Applies to:

Oracle WebLogic Server - Version 12.1.2.0.0 to 12.2.1.0.0 [Release 12c]
Enterprise Manager for Fusion Middleware - Version 12.1.2.0.0 to 12.2.1.0.0 [Release 12c]
Oracle Fusion Middleware - Version 12.1.2.0.0 to 12.2.1.0.0 [Release 12c]
Oracle HTTP Server - Version 12.1.2.0.0 to 12.2.1.0.0 [Release 12c]
Information in this document applies to any platform.

Symptoms

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 



Additional information

An attempt to start HTTP Server via the startComponent script also fails with the following error stack e.g.

Cause

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