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https://issues.apache.org/jira/browse/KAFKA-10424?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17184891#comment-17184891
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Ning Zhang commented on KAFKA-10424:
------------------------------------
[~grinfeld] I deployed the latest kafka 2.6 and it seems to me this is not a
bug:
before running MM2:
```
bash-4.4# /opt/kafka/bin/kafka-topics.sh --zookeeper
zookeeper-service-backup:2181 --describe --topic primary.test
Topic:primary.test PartitionCount:3 ReplicationFactor:3 Configs:
Topic: primary.test Partition: 0 Leader: 1 Replicas: 1,2,0
Isr: 1,2,0
Topic: primary.test Partition: 1 Leader: 2 Replicas: 2,0,1
Isr: 2,0,1
Topic: primary.test Partition: 2 Leader: 0 Replicas: 0,1,2
Isr: 0,1,2
```
After running MM2:
```
bash-4.4# /opt/kafka/bin/kafka-topics.sh --zookeeper
zookeeper-service-backup:2181 --describe --topic primary.test
Topic:primary.test PartitionCount:3 ReplicationFactor:3
Configs:cleanup.policy=compact
Topic: primary.test Partition: 0 Leader: 1 Replicas: 1,2,0
Isr: 1,2,0
Topic: primary.test Partition: 1 Leader: 2 Replicas: 2,0,1
Isr: 2,0,1
Topic: primary.test Partition: 2 Leader: 0 Replicas: 0,1,2
Isr: 0,1,2
```
note that `cleanup.policy=compact` is added after MM2 start
> MirrorMaker 2.0 does not replicates topic's "clean.policy"
> ----------------------------------------------------------
>
> Key: KAFKA-10424
> URL: https://issues.apache.org/jira/browse/KAFKA-10424
> Project: Kafka
> Issue Type: Bug
> Components: mirrormaker
> Affects Versions: 2.5.0
> Reporter: Mikhail Grinfeld
> Assignee: Ning Zhang
> Priority: Major
>
> I needed to replicate schema-registry "_schemas" topic.
> data was replicated successfully and everything looked good, but new
> schema-registry started with warning that replicated topic's cleanup.policy
> is not "compact"
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