Hello,

In nova/api.log I see a lot of messages like this:

WARNING keystoneclient.middleware.auth_token [-] Authorization failed for token

I seem to recall however that in this error messages the token should be mentioned, ie. the after "token" a token should be printed. So this looks like something using an empty token.

Is my suspicion correct? And if this is the case, how do I find out what it is that is causing these warnings?