[jira] [Created] (KAFKA-7314) MirrorMaker example in documentation does not work

["John Wilkinson (JIRA)" <ji...@apache.org>]

John Wilkinson created KAFKA-7314:
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             Summary: MirrorMaker example in documentation does not work
                 Key: KAFKA-7314
                 URL: https://issues.apache.org/jira/browse/KAFKA-7314
             Project: Kafka
          Issue Type: Bug
            Reporter: John Wilkinson


Kafka MirrorMaker as described in the documentation [here|https://kafka.apache.org/documentation/#basic_ops_mirror_maker] does not work. Instead of pulling messages from the consumer-defined {{bootstrap.servers}} and pushing to the producer-defined {{bootstrap.servers}}, it consumes and producers on the same topic on the same host repeatedly.

To replicate, set up two instances of kafka following [this|https://docs.confluent.io/current/installation/docker/docs/installation/recipes/single-node-client.html] guide. The schema registry and rest proxy are unnecessary. [Here|https://hub.docker.com/r/confluentinc/cp-kafka/] is the DockerHub page for the image.  The Kafka version is 2.1.0.

Using those two kafka instances, go {{docker exec}} into one and set up the {{consumer.properties}} and the {{producer.properties}} following the MirrorMaker guide.

Oddly, if you put in garbage unresolvable server addresses in the config, there will be an error, despite the configs not getting used.



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