Question

我正在尝试从破坏NodeJS 8.10的AWS Lambda函数连接到MongoDB数据库。 MongoDB副本集部署在自定义VPC内的3个EC2实例（1个主节点，1个辅助节点和1个仲裁器）上。我能够从运行Web服务器的单独EC2实例连接到mongodb副本集。我在Lambda中遇到的错误是

{ MongoError: seed list contains no mongos proxies, replicaset connections requires the parameter replicaSet to be supplied in the URI or options object, 
  mongodb://server:port/db?replicaSet=name
  at connectCallback 
  (/var/task/node_modules/mongodb/lib/operations/mongo_client_ops.js:236:23)
  at process.nextTick 
  (/var/task/node_modules/mongodb/lib/operations/mongo_client_ops.js:436:7)
  at _combinedTickCallback (internal/process/next_tick.js:131:7)
  at process._tickDomainCallback (internal/process/next_tick.js:218:9)
  name: 'MongoError',
  message: 'seed list contains no mongos proxies, replicaset connections requires the parameter replicaSet to be supplied in the URI or options object, mongodb://server:port/db?replicaSet=name',
  [Symbol(mongoErrorContextSymbol)]: {} }

我用来连接的代码是

'use strict';
const MongoClient = require('mongodb').MongoClient;
MongoClient.connect(mongo_uri, { useNewUrlParser: true }, function(err, client) {
    callback(err, client);
});

mongo_uri 的格式为

mongodb：// uname：password @ ec2-dns-primary：27017，ec2-dns-secondary：27017 / dbname？replicaSet = replSetName＆readPreference = primary

环境详细信息为：

Node: v8.10
MongoDB node module: 3.1.0

Lambda函数部署在部署了运行MongoDB的实例的同一VPC中。安全小组对我来说还可以。

关于如何使其工作或是否必须使用另一种语言（如python）的想法吗？

AWS Lambda无法连接到NodeJS中的MongoDB

0 个答案: