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Posted to jira@kafka.apache.org by "Liraz Sharaby (Jira)" <ji...@apache.org> on 2020/06/18 14:46:00 UTC

[jira] [Created] (KAFKA-10183) MirrorMaker creates duplicate messages in target cluster

Liraz Sharaby created KAFKA-10183:
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             Summary: MirrorMaker creates duplicate messages in target cluster
                 Key: KAFKA-10183
                 URL: https://issues.apache.org/jira/browse/KAFKA-10183
             Project: Kafka
          Issue Type: Bug
          Components: mirrormaker
    Affects Versions: 2.5.0, 2.4.0
         Environment: Centos7.7
            Reporter: Liraz Sharaby


Issue: Mirror maker creates a consumer-producer pair per server listed in bootstrap.servers (mirrormaker config), resulting in duplicate messages in target cluster.

When specifying 3 bootstrap servers, target topic will have 3 times the messages its source does.
When specifying a single bootstrap server, only 1 consumer-producer pair is created, and message count is identical in source and target topics.



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