在Amazon EC2上構建gRPC服務器

Question

當我嘗試在Amazon EC2實例上構建gRPC服務器/客戶端時遇到問題。

我有一個實例A（與私人IP：例如1.2.3.4）。服務器的代碼是一樣

from concurrent import futures 
import time 
import math 

import grpc 

import helloworld_pb2 

_ONE_DAY_IN_SECONDS = 60 * 60 * 24 

class Greeter(helloworld_pb2.GreeterServicer): 

    def SayHello(self, request, context): 
    return helloworld_pb2.HelloReply(message='Hello, %s!' % request.name) 


def serve(): 
    server = grpc.server(futures.ThreadPoolExecutor(max_workers=10)) 
    helloworld_pb2.add_GreeterServicer_to_server(Greeter(), server) 
    server.add_insecure_port('1.2.3.4:50051') 

    server.start() 
    try: 
    while True: 
     time.sleep(_ONE_DAY_IN_SECONDS) 
    except KeyboardInterrupt: 
    server.stop(0) 

if __name__ == '__main__': 
    serve() 

在另一方面，該實例B具有私有IP 2.3.4.5，我想它

from __future__ import print_function 

import grpc 

import helloworld_pb2 


def run(): 
    channel = grpc.insecure_channel('1.2.3.4:50051') 
    stub = helloworld_pb2.GreeterStub(channel) 
    response = stub.SayHello(helloworld_pb2.HelloRequest(name='you')) 
    print("Greeter client received: " + response.message) 


if __name__ == '__main__': 
    run() 

客戶端和服務器端的代碼運行運行客戶端腳本以及在本地機器上。然而，當我嘗試在EC2集羣上運行他們的客戶端無法找到服務器

Traceback (most recent call last): 
    File "helloworld_client.py", line 47, in <module> 
    run() 
    File "helloworld_client.py", line 42, in run 
    response = stub.SayHello(helloworld_pb2.HelloRequest(name='you')) 
    File "/usr/local/lib/python3.4/dist-packages/grpc/_channel.py", line 481, in __call__ 
    return _end_unary_response_blocking(state, False, deadline) 
    File "/usr/local/lib/python3.4/dist-packages/grpc/_channel.py", line 432, in _end_unary_response_blocking 
    raise _Rendezvous(state, None, None, deadline) 
grpc._channel._Rendezvous: <_Rendezvous of RPC that terminated with (StatusCode.UNAVAILABLE,)> 

我應該怎麼做才能拿到劇本運行？

感謝。

Answer 1

我發現問題在哪裏。通過設置安全組 - 輸入類型 - 所有流量，服務器和客戶端之間的連接就起作用。