About KafkaMirrorMaker2

[chxliii]

I want to know, when using KafkaMirrorMaker2, its principle should be to use MirrorSourceConnector for data synchronization. Then must the brokers address of the target cluster of the newly created mirrorSourceConnector be the same as the kafka cluster that stores the kafka connect metadata? Because I saw in examples/mirror-maker/kafka-mirror-maker-2.yaml that spec.connectCluster and spec.mirrors.targetCluster are the same, does this mean that if I synchronize from kafka cluster A to kafka cluster C, where kafka connect metadata is stored in kafka cluster B, such a configuration cannot be implemented. It must be ensured that kafka cluster B and kafka cluster C are the same.

[kyguy]

To make sure I understand the question, you are asking that if you have 3 Strimzi-managed Kafka clusters:

• cluster-a
• cluster-b
• cluster-c

If it is possible for cluster-b to host KafkaMirrorMaker2 and synchronize the data between cluster-a as the source cluster and cluster-c as the target cluster. Did I interpret your question correctly?

[chxliii]

Yes, you are right. cluster b stores the metadata for mirrormaker2(because of its using kafka connect, kafka connect needs a kafka cluster to store the offset, task status info.)
cluster-a ——> source kafka cluster
cluster-c ——> target kafka cluster

My question is can the target cluster c be different from cluster b? I seem to see that the best recommendation is that cluster b and cluster c should be the same. But I would like cluster b to be different from cluster c. Cluster b is only used just as mirrormaker2 to store metadata, the target cluster is additional other clusters which are not the same!