WAS Federated repositories - Not able to login when any one of the repositories is down

Scenario:
In IBM IIS, when the user registry is configured as Federated repositories, we cannot login to WebSphere and any of the IIS components when any one of the repositories is down.

Cause:
If one or more configured repository is down, we cannot log in (even as admin) or stop WebSphere Application Server, regardless of the repository in which your particular ID is stored. Virtual member manager (VMM) always checks whether all repositories are up before authenticating.

Resolution:
To disable this feature, we must set allowOperationIfReposDown to true in wimconfig.xml file.

Note: After updating wimconfig.xml, the services must be restarted for the changes to take effect.


Reference Links:

http://www.ibm.com/support/knowledgecenter/SSAW57_8.5.5/com.ibm.websphere.wim.doc/UnableToAuthenticateWhenRepositoryIsDown.html
https://developer.ibm.com/answers/questions/242364/why-do-errors-cwwim2009e-and-secj0281e-occur-in-sy.html

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Regards

Sandeep C