Cassandra 删除键空间，表不工作

Question

I am starting with cassandra and have had some problems. I create keyspaces and tables to go playing, if I delete them and then run a describe keyspace they keep appearing to me. Other times I delete them and it tells me they don't exist, but I can't create them either because it says it exists.

Is there a way to clear that "cache" or something similar?

I would also like to know if through cqlsh I can execute a.cql file that is on my computer.

[cqlsh 5.0.1 | Cassandra 3.11.0 | CQL spec 3.4.4 | Native protocol v4]

Answer 1

This may be due to the eventually consistent nature of Cassandra. If you are on a small test cluster and just playing around you could try doing CONSISTENCY ALL in cqlsh which will force the nodes to become consistent.

Answer 2

You should always run delete or drop command manually with CONSISTENCY ALL so that it will reflect all the nodes and DCs. Also you need to wait for a moment to replicate into the cluster. Once replicated you will not get deleted data else you need to run a repair in the cluster.