How to get a clean Autoconfig Environment ?

How to get a clean Autoconfig Environment ? [ID 391406.1]
		Modified 27-SEP-2011     Type HOWTO     Status PUBLISHED

In this Document
  Goal
  Solution
  References

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Applies to:

Oracle Applications Technology Stack - Version: 11.5.10.2 to 12.1.3 - Release: 11.5.10 to 12.1
Information in this document applies to any platform.
***Checked for relevance on 30-Jun-2011***

Goal

The goal is to get a cleaned up Autoconfig Environment.

Solution

1. Clear the net services topology data model used by Autoconfig  - see Note 218089.1 - 'Autoconfig FAQ'

1.1 Question :
How do I deregister a APPLICATION-Tier from the Net Services Topology Data Model ?

1.1 Answer :
To deregister the current application tier from the Net Services Topology Data Model, invoke the following command :

perl /bin/adgentns.pl appspass= contextfile= -removeserver

1.2 Question :
How do I deregister a DATABASE-Tier from the Net Services Topology Data Model ?

1.2 Answer :
To deregister the current database tier from the Net Services Topology Data Model, invoke the following command :

perl /appsutil/bin/adgentns.pl appspass=< APPSpwd> contextfile= - removeserver

2. Clear the FND_NODES table as described in Note 260887.1 - 'Steps to Clean Nonexistent Nodes or IP Addresses from FND_NODES'

Execute following commands in SQLPlus :

EXEC FND_CONC_CLONE.SETUP_CLEAN;
COMMIT;
EXIT;

3. Run AutoConfig on all nodes - first on the DB-Tier and then on the APPS-Tier-node(s), to repopulate the required system tables.