Github user wangzhijiang999 commented on the issue: https://github.com/apache/flink/pull/2461 Yes, that also make sense. For testing purpose it is very clear, so we do not need do anything currently, all the components in `TaskManager` constructor can be mocked implicitly. For `TaskManagerRunner`, the purpose is to pull out the initialization of related components from `TaskManager` to make it logic clear. Just one issue to be confirmed, we should provide more static methods of different parameter units for outside world or just one static method such as 'selectNetworkInterfaceAndRunTaskManager(`Configuration` configuration,`ResourceID` resourceID) '? I think providing more methods with different parameters may be reasonable, because some parameters such as 'hostname','port', `RpcService`, `HighAvailabilityServices` may want to be passed from outside.
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