Exception in thread "main" java.lang.NullPointerException: null default instance: com.alipay.sofa.jraft.rhea.cmd.store.GetRequest
at com.alipay.sofa.jraft.util.Requires.requireNonNull(Requires.java:55)
at com.alipay.sofa.jraft.rpc.impl.GrpcServer.registerProcessor(GrpcServer.java:133)
at com.alipay.sofa.jraft.rhea.StoreEngineHelper.addKvStoreRequestProcessor(StoreEngineHelper.java:94)
应该是没有自动注册rhea cmd相关的序列化和反序列化,即没有调用rpcFactory.registerProtobufSerializer()