JulySouthWind

> Good idea, we just considered the HA scenarios for online service. We will implement the function proposed by this issue as soon as possible.

非常好的想法，跟我们的思路一致，后面会推出这样的功能，大家都可以参与进来

> Firstly, we want to replace grpc only under data reading and writing scenario. It will take a long time to replace grpc in all scenario, whether to replace grpc...

> This is the stress test code： https://github.com/oppo-bigdata/shuttle/blob/master/src/main/scala/org/apache/spark/testutil/FsWriteStressTest.scala https://github.com/oppo-bigdata/shuttle/blob/master/src/main/scala/org/apache/spark/testutil/FsReadStressTest.scala