On Wed, Nov 6, 2013 at 9:10 AM, Keith Freeman <8forty@gmail.com> wrote:
Is it possible that the keyspace was dropped then re-created ( https://issues.apache.org/jira/browse/CASSANDRA-4857)? I've seen similar stack traces in that case.

Thanks for the pointer.

There's a program (RHQ) that's managing my server and may have done the create-drop-create sequence by mistake.

I also wonder if adding additional data directories after re-starting the server may cause issues. What I mean is adding more dirs to 'data_file_directories' in cassandra.yaml, then restarting.