Tri Nguyen created CASSANDRA-16747:
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Summary: Block creating keyspace with RF > Cassandra node count
Key: CASSANDRA-16747
URL: https://issues.apache.org/jira/browse/CASSANDRA-16747
Project: Cassandra
Issue Type: Improvement
Components: Cluster/Schema
Reporter: Tri Nguyen
Using Cassandra 3.11.10, 3 nodes cluster Cassandra allows to create a keyspace
having `replication_factor` greater than the number of available nodes.
{code:java}
-- successfully created Keyspace with RF = 3 > node count = 3
CREATE KEYSPACE mykeyspace WITH replication = {'class': 'SimpleStrategy',
'replication_factor': 5 };
{code}
>From [this
>discussion|https://community.datastax.com/questions/11623/create-keyspace-with-rf-physical-cassandra-node-co.html]
> on community.datastax.com. It appears that this would lead to serious
>operational problems.
Would it be OK to improve the `CREATE KEYSPACE` to block (or display warning)
when attempting to set `replication_factor` > node count?
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