Disappearing keyspaces in Cassandra 1.1

[Oleg Dulin]

I am using cassandra 1.1.0 on a 3 node environment. I just truncated a 
few column families then restarted the nodes. now when I restarted them 
it says my keyspace doesn't exist. The data for the keyspace is still 
in the data directory. Does anyone know what could have caused this?