"Failed to Load server configuration" Error in the EM Console After Changing Orclhostname in OID 11g to Another Existing Secondary VIP Hostname (Doc ID 1340233.1)

Last updated on OCTOBER 16, 2019

Applies to:

Symptoms

After creating a new OID instance (oid2) as per:
Document 1203271.1 - 11g - How To Create New OID Instance And Configure For SSL Server Auth (mode 2)

The server has a secondary or virtual IP address that resolves to a different hostname:
<IP_ADDRESS1> physical.<COUNTRY>.<COMPANY>.com physical
<IP_ADDRESS2> secondary.<COUNTRY>.<COMPANY>.com secondary

The default OID orclhostname was changed from "localhost" to "secondary.<COUNTRY>.<COMPANY>.com".

So these ports are now bound to that specific IP/hostname as can be seen with netstat, e.g.:
netstat -an|grep 3061
tcp 0 0 <IP_ADDRESS2>:3061 0.0.0.0:* LISTEN
 netstat -an | grep 3132
tcp 0 0 <IP_ADDRESS2>:3132 0.0.0.0:* LISTEN

In Enterprise Manager Console (EM)
General Port usage screen: shows the correct values

Port Hostname Protocol
3132 secondary.<COUNTRY>.<COMPANY>.com LDAPS
3061 secondary.<COUNTRY>.<COMPANY>.com LDAP

Error on the EM OID Server Configuration Page for component oid2:

Note that it is still trying to connect to the original hostname, which is not listening on these ports.

Component oid2 was reregistered with:
opmnctl updatecomponentregistration -adminHost physical.<COUNTRY>.<COMPANY>.com -Host secondary.<COUNTRY>.<COMPANY>.com -adminPort 7001 -adminUsername weblogic -componentType OID -componentName oid2 -Port 3061 -Sport 3132

The topology.xml and targets.xml now have the correct values for "host" for the oid2 component, but EM is still trying to connect to the original hostname.

Changes

By default OID will listen on all network adapters.
OID has been reconfigured to bind to a specific IP address.

Cause

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