Sometimes when scaling up or down, it is possible to get incorrect data in the dsreplication output. In the example below the replicaCount was changed from 4 to 3. The oud-ds-rs-3 server appears as <Unknown> when it should have disappeared:

dc=example,dc=com - Replication Enabled
=======================================
 
Server                         : Entries : M.C. [1] : A.O.M.C. [2] : Port [3] : Encryption [4] : Trust [5] : U.C. [6] : Status [7] : ChangeLog [8] : Group ID [9] : Connected To [10]
-------------------------------:---------:----------:--------------:----------:----------------:-----------:----------:------------:---------------:--------------:-------------------------------
oud-ds-rs-3:<Unknown>          : --      : N/A      : --           : 1898     : Disabled       : --        : --       : Unknown    : --            : N/A          : --
[11]                           :         :          :              :          :                :           :          :            :               :              :
oud-ds-rs-0:1444               : 39135   : 0        : 0            : 1898     : Disabled       : Trusted   : --       : Normal     : Enabled       : 1            : oud-ds-rs-2:1898
                               :         :          :              :          :                :           :          :            :               :              : (GID=1)
oud-ds-rs-1:1444               : 39135   : 0        : 0            : 1898     : Disabled       : Trusted   : --       : Normal     : Enabled       : 1            : oud-ds-rs-1:1898
                               :         :          :              :          :                :           :          :            :               :              : (GID=1)
oud-ds-rs-2:1444               : 39135   : 0        : 0            : 1898     : Disabled       : Trusted   : --       : Normal     : Enabled       : 1            : oud-ds-rs-2:1898
                               :         :          :              :          :                :           :          :            :               :              : (GID=1)
 
Replication Server [12]       : RS #1 : RS #2 : RS #3 : RS #4
------------------------------:-------:-------:-------:------
oud-ds-rs-0:1898 (#1)  : --    : Yes   : Yes   : N/A
oud-ds-rs-1:1898 (#2)  : Yes   : --    : Yes   : N/A
oud-ds-rs-2:1898 (#3)  : Yes   : Yes   : --    : N/A
oud-ds-rs-3:1898 (#4)  : No    : No    : No    : --

In this situation, perform the following steps to remove the server:

1. Run the following command to enter the OUD Kubernetes pod:

   kubectl --namespace <namespace> exec -it -c <containername> <podname> -- bash

   For example:

   kubectl --namespace oudns exec -it -c oud-ds-rs oud-ds-rs-0 -- bash

   This will take you into the pod:

   [oracle@oud-ds-rs-0 oracle]$

2. Once inside the pod run the following command to create a password file:

   echo <ADMIN_PASSWORD> > /tmp/adminpassword.txt

3. Run the following command to remove the replicationPort:

   /u01/oracle/oud/bin/dsreplication disable --hostname localhost --port $adminConnectorPort --adminUID admin --trustAll --adminPasswordFile /tmp/adminpassword.txt --no-prompt --unreachableServer oud-ds-rs-3:$replicationPort

   The output will look similar to the following:

   Establishing connections and reading configuration ........ Done.
    
   The following errors were encountered reading the configuration of the
   existing servers:
   Could not connect to the server oud-ds-rs-3:1444.  Check that the
   server is running and that is accessible from the local machine.  Details:
   oud-ds-rs-3:1444
   The tool will try to update the configuration in a best effort mode.
    
   Removing references to replication server oud-ds-rs-3:1898 ..... Done.

4. Run the following command to remove the adminConnectorPort:

   /u01/oracle/oud/bin/dsreplication disable --hostname localhost --port $adminConnectorPort --adminUID admin --trustAll --adminPasswordFile /tmp/adminpassword.txt --no-prompt --unreachableServer oud-ds-rs-3:$adminConnectorPort

   The output will look similar to the following:

   Establishing connections and reading configuration ...... Done.
    
   Removing server oud-ds-rs-3:1444 from the registration information ..... Done.

5. Delete the password file:

   rm /tmp/adminpassword.txt