In some 10.03 Windows environments users report rapidly growing server.log and run.log files while GUI is open. Following type of message is constantly logged: 

2018-04-15 23:59:59,970 WARN  [org.keycloak.events] (default task-3) type=LOGIN_ERROR, realmId=283fdab5-5bfe-4699-bf51-827cd608314c, clientId=dp-gui, userId=null, ipAddress=10.244.250.27, error=invalid_redirect_uri, redirect_uri=https://HOSTNAME.domain.com:7116/idb/telemetry/subscription

Workaround is to convert CellServer string value in key HKEY_LOCAL_MACHINE\\SOFTWARE\\Hewlett-Packard\\OpenView\\OmniBackII\\Site from upper to lower case.

Found this article for the same issue, did not try it though.

https://community.softwaregrp.com/t5/Data-Protector-User-Discussions/Huge-size-of-run-log-and-server-log-in-DP-10-03/m-p/1652775/highlight/false#M157905

solved in 10.04