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  1. Flink
  2. FLINK-10653 Introduce Pluggable Shuffle Service Architecture
  3. FLINK-12571

Make NetworkEnvironment#start() return the binded data port

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      Currently `NetworkEnvironment#getConnectionManager()` is mainly used for `TaskManagerServices` for getting binded data port from `NettyConnectionManager`. Considering the `ConnectionManager` as an internal component of `NetworkEnvironment`, it should not be exposed for outsides. For other ShuffleService implementations, it might have no `ConnectionManager` at all.

      We could make `ShuffleService#start()` return the binded data port to replace the `getConnectionManager`. For the `LocalConnectionManager` or other shuffle service implementations which have no binded data port, it could return a simple default value and it would have no harm.

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              • Assignee:
                zjwang Zhijiang
                Reporter:
                zjwang Zhijiang
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