猫鼬自动重新连接选项 [英] Mongoose autoReconnect option

问题描述

我正在尝试通过Mongoose设置MongoDB自动重新连接功能.我尝试通过该选项的每种方式均无效，或者至少没有发出reconnected事件.

I'm trying to set up the MongoDB auto reconnection feature via Mongoose. Every way that I have tried to pass the option has had no effect, or at least the reconnected event isn't being emitted.

我尝试过的事情:

mongoose.createConnection("mongodb://localhost:27017/test", { auto_reconnect: true });
mongoose.createConnection("mongodb://localhost:27017/test", { autoReconnect: true });
mongoose.createConnection("mongodb://localhost:27017/test", { server: { auto_reconnect: true } });
mongoose.createConnection("mongodb://localhost:27017/test", { server: { autoReconnect: true } });

如果其中之一是正确的，则应该触发reconnected事件，并在控制台中记录一条消息，但这永远不会发生.

If one of these is correct, the reconnected event should be triggered and a message should be logged in the console, however this never happens.

如果重新连接之前有延迟，那么有人知道如何配置吗?

If there is a delay before the reconnection, does anyone know how to configure it?

预先感谢

对于任何对此感兴趣的人，请查看此和

For anyone looking into this, take a look at this and this issue in mongoose repository.

推荐答案

我和你有同样的问题，而robertklep的解决方案对我也不起作用.我发现MongoDB服务停止时，触发了一个错误事件，但是connection.readyState仍然为1(已连接).这可能就是为什么它没有自动重新连接的原因.

I had the same question as you, and robertklep's solution didn't work for me either. I found when MongoDB service is stopped, an error event is triggered, but the connection.readyState is still 1 (connected). That may be why it didn't auto reconnect.

这就是我现在拥有的:

  var db = mongoose.connection;

  db.on('connecting', function() {
    console.log('connecting to MongoDB...');
  });

  db.on('error', function(error) {
    console.error('Error in MongoDb connection: ' + error);
    mongoose.disconnect();
  });
  db.on('connected', function() {
    console.log('MongoDB connected!');
  });
  db.once('open', function() {
    console.log('MongoDB connection opened!');
  });
  db.on('reconnected', function () {
    console.log('MongoDB reconnected!');
  });
  db.on('disconnected', function() {
    console.log('MongoDB disconnected!');
    mongoose.connect(dbURI, {server:{auto_reconnect:true}});
  });
  mongoose.connect(dbURI, {server:{auto_reconnect:true}});

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