All possible system keyspaces in Cassandra

Question

I am trying to find a list of all the possible 'System' keyspaces that MAY exist in a DSC Cassandra database (System keyspaces are those which are not created by a user).

My experience thus far is I have found

[cqlsh 3.1.8 | Cassandra 1.2.15 | CQL spec 3.0.0 | Thrift protocol 19.36.2]
system system_traces OpsCenter

Are these the only available System Keyspaces or are there others? Does it depend on the version(1.2/2.0) and distribution(Apache/Datastax)? I tried to search the documentation but no luck. Could anyone help me out here?

Answer 1

Only system, system_auth and system_traces are strictly "System", especially the 1st one. OpsCenter is created for/by DataStax OpsCenter