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Verifying the keyspace replication factor

Suggest edit Updated on March 11, 2021

Troubleshoot keyspace-related errors, such as incorrect replication, by checking whether a specific keyspace exists and whether the keyspace belongs to the correct data center.

  • View the keyspace details by entering describe keyspace keyspace_name in the cqlsh console.
    Cassandra returns output similar to the following:
    CREATE KEYSPACE data WITH replication = {'class': 'NetworkTopologyStrategy', 'datacenter1': '3'} AND durable_writes = true;
    • class is the replication strategy.
    • datacenter1 is the name of the related data center. The data center name is associated with the current replication factor value, for example, 3.
What to do next: Depending on the output, you might want to adjust the keyspace configuration to better reflect your business needs and prevent replication errors. For example, you can use the alter_keyspace command to fix the keyspace configuration. For more information, see the Apache Cassandra documentation.
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