After countless hours of trial end error I finally figured out how to get cassandra 1.2 and usergrid 1.x up and running and talking to each other. "cassandraAvailable" : true, the keyspace has been created (by calling /system/database/setup and /system/superuser/setup). Then I installed Portal end see the login screen, but neither my sysadmin nor my test account, which I configured in usergrid-default.properties are accepted. Also I can not register a new user. It says "Error registering:" and nothing else.
Where can I look for error logging? What do I have to set to get Usergrid Portal working?
Thanks for your help!