Nginx在OS X的配置

huangapple
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英文:

Nginx configuration in OS X

问题

以下是翻译好的内容：

我想为 gRPC 客户端和服务器实现服务器端负载平衡，并尝试创建适用于 OS X 的简单 Nginx 配置。我有两个运行在端口 50051 和 50052 上的服务器，以下是我启动服务器的代码：

  1. Server server = ServerBuilder.forPort(50051)
  2.                 .addService(new ImageStreamingServerImpl())
  3.                 .addService(ProtoReflectionService.newInstance())
  4. //                .useTransportSecurity(
  5. //                        new File("ssl/server.crt"),
  6. //                        new File("ssl/server.pem")
  7. //                )
  8.                 .build();
  9.         
  10.         server.start();

这是我的 Nginx 配置：

  1. worker_processes  1;
  3. error_log  /usr/local/var/log/nginx/error.log;
  5. events {
  6.     worker_connections  10;
  7. }
  9. http {
  10.     access_log  /usr/local/var/log/nginx/access.log;
  12.     upstream backend {
  13.         server 0.0.0.0:50051;
  14.         server 0.0.0.0:50052;
  15.     }
  17.     server {
  18.         listen 8080;
  20.         location / {
  21.             grpc_pass grpc://backend;
  22.         }
  23.     }
  24. }

所以我的想法是客户端可以通过 Nginx 上的端口 8080 进行监听，并执行与之前相同的代码。客户端的创建如下：

  1. ManagedChannel channel = ManagedChannelBuilder.forAddress("localhost", 8080)
  2.                 .usePlaintext()
  3.                 .build();
  5. //        ManagedChannel channel = NettyChannelBuilder.forAddress("localhost", 8080)
  6. //                .sslContext(GrpcSslContexts.forClient().trustManager(new File("ssl/ca.crt")).build())
  7. //                .build();
  9. FileServiceGrpc.FileServiceStub imageStreamingClient = FileServiceGrpc.newStub(channel);

以前，客户端和服务器可以在同一个端口上（例如，50051 或 50052）良好运行，而不需要 Nginx。为什么现在不起作用呢？

以下是提供的 proto 文件内容：

  1. syntax = "proto3";
  3. option java_multiple_files = true;
  4. package com.grpc.protobuf;
  6. message DownloadFileRequest {
  7.   string url = 1;
  8. }
  10. message DataChunk {
  11.   bytes data = 1;
  12.   int32 size = 2;
  13. }
  15. service FileService {
  16.   rpc downloadFile (DownloadFileRequest) returns (stream DataChunk);
  17. }

我为了简化目的省略了 TLS 加密部分。

英文:

I want to server-side load balance for gRPC client and server and trying to come up with simple Nginx config for the OS X. I have 2 servers running on the port 50051 and 50052 and this is I start the server:

  1. Server server = ServerBuilder.forPort(50051)
  2.                 .addService(new ImageStreamingServerImpl())
  3.                 .addService(ProtoReflectionService.newInstance())
  4. //                .useTransportSecurity(
  5. //                        new File("ssl/server.crt"),
  6. //                        new File("ssl/server.pem")
  7. //                )
  8.                 .build();
  9.         
  10.         server.start();

This is my Nginx config:

  1. worker_processes  1;
  3. error_log  /usr/local/var/log/nginx/error.log;
  5. events {
  6.     worker_connections  10;
  7. }
  9. http {
  10.     access_log  /usr/local/var/log/nginx/access.log;
  12.     upstream backend {
  13.         server 0.0.0.0:50051;
  14.         server 0.0.0.0:50052;
  15.     }
  17.     server {
  18.         listen 8080;
  20.         location / {
  21.             grpc_pass grpc://backend;
  22.         }
  23.     }
  24. }

So my idea is the client can listen to the port of 8080 over the Nginx and perform the code as before. Client creation is below:

  1.   ManagedChannel channel = ManagedChannelBuilder.forAddress("localhost", 8080)
  2.                 .usePlaintext()
  3.                 .build();
  5. //        ManagedChannel channel = NettyChannelBuilder.forAddress("localhost", 8080)
  6. //                .sslContext(GrpcSslContexts.forClient().trustManager(new File("ssl/ca.crt")).build())
  7. //                .build();
  8.         
  9.         FileServiceGrpc.FileServiceStub imageStreamingClient = FileServiceGrpc.newStub(channel);

Previously, the client and server can run decently in the same port (say, 50051 or 50052) without Nginx. Why does this not working now?

The proto file is provided below:

syntax = "proto3";

option java_multiple_files = true;
package com.grpc.protobuf;

  1. message DownloadFileRequest {
  2.   string url = 1;
  3. }
  5. message DataChunk {
  6.   bytes data = 1;
  7.   int32 size = 2;
  8. }
  10. service FileService {
  11.   rpc downloadFile (DownloadFileRequest) returns (stream DataChunk);
  12. }

I omit the TLS encryption for the simplification purpose.

答案1

得分: 4

这似乎你还没有配置Nginx来启用HTTP2，而这是gRPC使用的协议。

尝试使用：

  1. server {
  2.    listen 8080 http2;
  3.    ....
  4. }
英文:

It doesn't look like you have configured Nginx to enabled HTTP2, which is the protocol used by gRPC.

Try with:

  1. server {
  2.    listen 8080 http2; 
  3.    ....
  4. }

huangapple
  • 本文由 发表于 2020年10月22日 22:57:00
  • 转载请务必保留本文链接：https://go.coder-hub.com/64484967.html
  • grpc
  • java
  • load-balancing
  • nginx
  • server
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