why do i get an corba exception comm failure?

Document ID : KB000113726
Last Modified Date : 13/09/2018
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Introduction:
We are getting errors similar to the below in both SpectroSERVER and Archive Manager logs.    
ERROR TRACE at CsCorbaMgr.cc(864): Exception: CORBA::COMM_FAILURE
Looking in the landscape map for the live system, we see an entry for the test landscape that should not be in there.
Removing the test server from the landscape map resolved the problem.
Question:
Why do I get an Exception CORBA::COMM_FAILURE?
Environment:
This problem was seen on a single landscape, fault-tolerant system, but could be seen on any system that has a similar test system set up.
Answer:
Looking in the landscape map for the live system, we see an entry for the test landscape that should not be in there.
Removing the test server from the landscape map resolved the problem.

1. The test server should be removed from the .hostrc of the live system.
$SPECROOT/.hostrc

2. The main location server of the test should not point to the live system
$SPECROOT/LS/.locrc