When using one of the DataStax drivers for Cassandra, either if it’s C#, Python, or Java, there are 4 simple rules that should clear up the majority of questions and that will also make your code efficient:

  1. Use one Cluster instance per (physical) cluster (per application lifetime)
  2. Use at most one Session per keyspace, or use a single Session and explicitely specify the keyspace in your queries
  3. If you execute
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