Unable to login into TDM Portal and Datamaker

Products

• CA Test Data Manager (Data Finder / Grid Tools)

Issue/Introduction

Unable to login into TDM Portal and Datamaker. After providing the credentials(default), the application hangs and doesn't respond.

Could see below error in TDMWeb log 

2022-08-17 12:38:49.819 UTC [INFO ] [https-openssl-nio-8443-exec-2] --- [U:][M:][P:]                     c.c.t.s.s.SecurityUserService:  External authentication not allowed for user Administrator
2022-08-17 12:41:20.217 UTC [INFO ] [https-openssl-nio-8443-exec-10] --- [U:][M:][P:]                     c.c.t.s.s.SecurityUserService:  External authentication not allowed for user integrator

and below error in TDMMaskingService log:

2022-08-17 12:40:50.177 UTC [INFO ] [SimpleAsyncTaskExecutor-1] --- [U:][M:][P:]                    c.c.t.s.i.c.SecurityClientImpl:  I/O error while sending login request to 'https://TDMPortalServer:8443/TestDataManager/user/login'
2022-08-17 12:40:50.177 UTC [ERROR] [SimpleAsyncTaskExecutor-1] --- [U:][M:][P:]                   c.c.t.e.EventRegistrationClient:  EventRegistrationClient: exception during subscription request : Login failed due to I/O error

Environment

Release : 4.9.1

Component : TDM Web Portal

Cause

TDM repository is running on MS SQL SQLAG (Cluster). There was Azure Load Balancer sync issue between the Nodes.

Resolution

 Rebooted both of the DB nodes to resolve the issue.