osiriswd opened a new pull request #5949:
URL: https://github.com/apache/skywalking/pull/5949


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   ### <Feature description>
   - 📈 Update the documentation to include this new feature.
   
   - [ ] Update the [`CHANGES` 
log](https://github.com/apache/skywalking/blob/master/CHANGES.md).
   
   Kafka provides "MirrorMaker 2.0(MM2)" which leverages the Connect framework 
to replicate topics between Kafka clusters. This is realy helpful when handling 
large-scaled services/Multiple Data Centers/Edge Computing. 
   When skywalking cluster deployed in a Data Center("DC1" for example) and the 
topics mirrored from other Data Centers will be renamed based on the aliases:
   https://github.com/apache/kafka/tree/trunk/connect/mirror#remote-topics
   
   Adding support to oap kafka module for the renamed topics, set the aliases 
via application.yml or environment variables. This feature need to set up an 
oap server for each mirrored Kafka cluster.


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