Happens to any keyspace — not just system — if there are competing processes
initializing the system , creating / altering new things without CL=all it may
do this. I ran into a scenario where when permissions were flipped to a non
Cassandra user, the Cassandra daemon lost access to the data so
On a couple different occasions I have run into this exception at start up:
Exception (org.apache.cassandra.exceptions.InvalidRequestException)
encountered during startup: Unknown type
org.apache.cassandra.exceptions.InvalidRequestException: Unknown type
at
org.apache.cassandra.cql3.CQL3
