I performed an upgrade from ver. 5.0.4 to 6 on a Window 2008 server and it seemed to be successful, but ever since I have been getting intermittent problems when trying to logon.
I started to receive errors like:
1. Servername:port timeout
2. or after authenticating I receive “ResponseNotReady” and this will continue until I restart the Splunk DB service.
what can I do to resolve without rebuilding.
This error is likely due to Splunk being unable to talk to itself. It's a known issue with Windows, see:
This answer has the most detailed information, in terms of users' experience.
http://answers.splunk.com/answers/68368/splunk-web-throws-responsenotready-error