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We use an algorithm to get a balanced assignment of replicas or leaders,and call ReassignPartitionsCommand to let kafka sever move replicas or change the position of replicas in ARs. 

We designed 3 command of this tools:

1. show-cluster-state This command print out current cluster balance state.We can use it to learn whether or not it corresponds to reality

Public Interfaces

Compatibility, Deprecation, and Migration Plan

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