mimaison commented on a change in pull request #11431: URL: https://github.com/apache/kafka/pull/11431#discussion_r749214261
########## File path: connect/mirror/src/main/java/org/apache/kafka/connect/mirror/MirrorMakerConfig.java ########## @@ -183,12 +187,18 @@ public MirrorClientConfig clientConfig(String cluster) { // fill in reasonable defaults props.putIfAbsent(GROUP_ID_CONFIG, sourceAndTarget.source() + "-mm2"); - props.putIfAbsent(DistributedConfig.OFFSET_STORAGE_TOPIC_CONFIG, "mm2-offsets." - + sourceAndTarget.source() + ".internal"); - props.putIfAbsent(DistributedConfig.STATUS_STORAGE_TOPIC_CONFIG, "mm2-status." - + sourceAndTarget.source() + ".internal"); - props.putIfAbsent(DistributedConfig.CONFIG_TOPIC_CONFIG, "mm2-configs." - + sourceAndTarget.source() + ".internal"); + + String separator = originalsStrings().getOrDefault(REPLICATION_POLICY_SEPARATOR, REPLICATION_POLICY_SEPARATOR_DEFAULT); + if (separator.equals("-")) { + throw new ConfigException("You should not use a single dash as a " + REPLICATION_POLICY_SEPARATOR); + } + + props.putIfAbsent(DistributedConfig.OFFSET_STORAGE_TOPIC_CONFIG, "mm2-offsets" + separator Review comment: I think the fix @OmniaGM proposed above (https://github.com/apache/kafka/pull/11431#discussion_r737592730) makes sense and I think it's fully compatible. WDYT? -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: jira-unsubscr...@kafka.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org