我正在尝试在Kubernetes上部署超级账本结构。我的本地计算机在Ubuntu 16.04上，并且我正在使用Kubernetes版本1.11.2。我使用kubeadm创建了集群，并使用法兰绒创建了网络。我与Apache Kafka有一个主节点和一个工作节点以及Hyperledger Fabric共识。
这是我在部署时遇到的错误：
2018-09-12 04:17:13.845 UTC [grpc] Printf -> DEBU d09 grpc: Server.Serve failed to complete security handshake from "10.244.1.1:49848": EOF
2018-09-12 04:17:15.890 UTC [grpc] Printf -> DEBU d0a grpc: Server.Serve failed to complete security handshake from "10.244.1.1:49850": EOF
2018-09-12 04:17:18.845 UTC [grpc] Printf -> DEBU d0b grpc: Server.Serve failed to complete security handshake from "10.244.1.1:49862": EOF
2018-09-12 04:17:23.845 UTC [grpc] Printf -> DEBU d0c grpc: Server.Serve failed to complete security handshake from "10.244.1.1:49878": EOF
2018-09-12 04:17:25.890 UTC [grpc] Printf -> DEBU d0d grpc: Server.Serve failed to complete security handshake from "10.244.1.1:49880": EOF
2018-09-12 04:17:28.845 UTC [grpc] Printf -> DEBU d0e grpc: Server.Serve failed to complete security handshake from "10.244.1.1:49892": EOF
2018-09-12 04:17:33.845 UTC [grpc] Printf -> DEBU d0f grpc: Server.Serve failed to complete security handshake from "10.244.1.1:49908": EOF
这是什么问题，我该如何解决？