[jira] [Created] (KAFKA-1816) Topic configs reset after partition increase

["Andrew Jorgensen (JIRA)" <ji...@apache.org>]

Andrew Jorgensen created KAFKA-1816:
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             Summary: Topic configs reset after partition increase
                 Key: KAFKA-1816
                 URL: https://issues.apache.org/jira/browse/KAFKA-1816
             Project: Kafka
          Issue Type: Bug
    Affects Versions: 0.8.1.1
            Reporter: Andrew Jorgensen
            Priority: Minor


If you alter a topic to increase the number of partitions then the configuration erases the existing configs for that topic. This can be reproduces by doing the following:

{code:none}
$ bin/kafka-topics.sh --create --zookeeper localhost --topic test_topic --partitions 5 --config retention.ms=3600

$ bin/kafka-topics.sh --describe --zookeeper localhost --topic test_topic
> Topic:test_topic        PartitionCount:5        ReplicationFactor:1     Configs:retention.ms=3600

$ bin/kafka-topics.sh --alter --zookeeper localhost --topic test_topic --partitions 10
> Topic:test_topic        PartitionCount:10        ReplicationFactor:1     Configs:
{code}



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