Understand the System keyspace
What is the System keyspace?
Cassandra stores its state in System keyspace tables
Some system keyspace tables:
| Table | Purpose |
|---|---|
| schema_keyspaces | Keyspaces available within this cluster, along with their assigned replication strategy and replication factor |
| schema_columns | Details of cluster compound primary key columns |
| schema_columns | Details of cluster tables and their configuration |
| peers | Local tracking of cluster-wide gossip for this node |
| local | Details of the local node's own state |
| hints | Stores information for hinted handoffs |