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Jason Gustafson resolved KAFKA-5091. ------------------------------------ Resolution: Fixed Fix Version/s: 0.11.0.0 Issue resolved by pull request 2904 [https://github.com/apache/kafka/pull/2904] > ReassignPartitionsCommand should protect against empty replica list > assignment > ------------------------------------------------------------------------------- > > Key: KAFKA-5091 > URL: https://issues.apache.org/jira/browse/KAFKA-5091 > Project: Kafka > Issue Type: Improvement > Components: tools > Reporter: Ryan P > Assignee: huxi > Fix For: 0.11.0.0 > > > Currently it is possible to lower a topics replication factor to 0 through > the use of the kafka-reassign-partitions command. > i.e. > cat increase-replication-factor.json > {"version":1, > "partitions":[{"topic":"foo","partition":0,"replicas":[]}]} > kafka-reassign-partitions --zookeeper localhost:2181 --reassignment-json-file > increase-replication-factor.json --execute > Topic:test PartitionCount:1 ReplicationFactor:0 Configs: > Topic: foo Partition: 0 Leader: -1 Replicas: Isr: > I for one can't think of a reason why this is something someone would do > intentionally. That said I think it's worth validating that at least 1 > replica remains within the replica list prior to executing the partition > reassignment. -- This message was sent by Atlassian JIRA (v6.3.15#6346)