[
https://issues.apache.org/jira/browse/KAFKA-1816?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14241145#comment-14241145
]
Gwen Shapira commented on KAFKA-1816:
-------------------------------------
Looks fixed in 0.8.2:
```
[root@kafkaf-2 ~]# /usr/bin/kafka-topics --create --zookeeper
kafkaf-1:2181/kafka --topic test_topic --partitions 5 --replication-factor 1
--config retention.ms=3600
[root@kafkaf-2 ~]# /usr/bin/kafka-topics --describe --zookeeper
kafkaf-1:2181/kafka --topic test_topic
Topic:test_topic PartitionCount:5 ReplicationFactor:1
Configs:retention.ms=3600
[root@kafkaf-2 ~]# /usr/bin/kafka-topics --alter --zookeeper
kafkaf-1:2181/kafka --topic test_topic --partitions 10
[root@kafkaf-2 ~]# /usr/bin/kafka-topics --describe --zookeeper
kafkaf-1:2181/kafka --topic test_topic
Topic:test_topic PartitionCount:10 ReplicationFactor:1
Configs:retention.ms=3600
```
> 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
> Labels: newbie
> Fix For: 0.8.3
>
>
> 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
> $ bin/kafka-topics.sh --describe --zookeeper localhost --topic test_topic
> > Topic:test_topic PartitionCount:10 ReplicationFactor:1
> > Configs:
> {code}
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