Stanislav Kozlovski created KAFKA-10510:
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Summary: Reassigning partitions should not allow increasing RF of
a partition unless configured with it
Key: KAFKA-10510
URL: https://issues.apache.org/jira/browse/KAFKA-10510
Project: Kafka
Issue Type: Improvement
Reporter: Stanislav Kozlovski
Kafka should have some validations in place against increasing the RF of a
partition through a reassignment. Users could otherwise shoot themselves in the
foot by increasing the RF of a topic by reassigning its partitions to extra
replicas and then have new partition creations use a lesser (the configured)
replication factor.
Our tools should ideally detect when RF is increasing inconsistently with the
config and issue a separate command to change the config.
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