无法使用 Mongoose 通过 Bitnami MEAN STACK 连接到 MongoDB

Question

我从 AWS（具体来说是 Bitnami）购买了 MEAN 技术堆栈，并且一直在热切地尝试学习如何部署我的第一个节点应用程序。但是，实际上让我的 mongo 连接正常工作时，我遇到了很多困难。 我已阅读文档并尝试了各种方法来解决以下问题

root 管理员密码已重置。这是我使用正确的用户名和密码对的证据

> bitnami@ip-172-31-43-127:~/edupal$ sudo mongo admin --username root --password
pwdremoved
MongoDB shell version: 3.0.3
connecting to: /opt/bitnami/mongodb/tmp/mongodb-27017.sock:27017/admin
Server has startup warnings:
2015-06-09T20:11:33.967+0000 I CONTROL  [initandlisten]
2015-06-09T20:11:33.967+0000 I CONTROL  [initandlisten] ** NOTE: This is a 32 bi
t MongoDB binary.
2015-06-09T20:11:33.967+0000 I CONTROL  [initandlisten] **       32 bit builds a
re limited to less than 2GB of data (or less with --journal).
2015-06-09T20:11:33.967+0000 I CONTROL  [initandlisten] **       See http://doch
ub.mongodb.org/core/32bit
2015-06-09T20:11:33.967+0000 I CONTROL  [initandlisten]
> show dbs
admin  0.078GB
local  0.078GB
users  0.078GB
> use users
switched to db users
> db.myCollection.find()
{ "_id" : ObjectId("5578c11040a096b7fef84aad"), "name" : "Bill", "score" : "9" }

到目前为止，我相信我在资历方面的信誉良好。这是我连接到我的数据库的方式

// Connect to MongoDB
mongoose.createConnection('mongodb://root:pwdremoved@/opt/bitnami/mongodb/tmp/
mongodb-27017.sock/admin');
mongoose.connection.once('open', function() {

  // Load the models.
  app.models = require('./models/index');

  // Load the routes.
  var routes = require('./routes');
  _.each(routes, function(controller, route) {
    app.use(route, controller(app, route));
  });

  console.log('Listening on port 3000...');
  app.listen(8080);
});

我按照教程here

我不断收到此错误

bitnami@ip-172-31-43-127:~/edupal$ npm start

> app@0.0.0 start /home/bitnami/edupal
> node ./bin/www

events.js:85
      throw er; // Unhandled 'error' event
            ^
Error: failed to connect to [/opt/bitnami/mongodb/tmp/mongodb-27017.sock:27017]
    at null.<anonymous> (/home/bitnami/edupal/node_modules/mongoose/node_modules
/mongodb/lib/mongodb/connection/server.js:555:74)
    at emit (events.js:118:17)
    at null.<anonymous> (/home/bitnami/edupal/node_modules/mongoose/node_modules
/mongodb/lib/mongodb/connection/connection_pool.js:150:15)
    at emit (events.js:110:17)
    at Socket.<anonymous> (/home/bitnami/edupal/node_modules/mongoose/node_modul
es/mongodb/lib/mongodb/connection/connection.js:534:10)
    at Socket.emit (events.js:107:17)
    at net.js:459:14
    at process._tickCallback (node.js:355:11)

npm ERR! Linux 3.13.0-53-generic
npm ERR! argv "/opt/bitnami/nodejs/bin/.node.bin" "/opt/bitnami/nodejs/bin/npm"
"start"
npm ERR! node v0.12.4
npm ERR! npm  v2.11.1
npm ERR! code ELIFECYCLE
npm ERR! app@0.0.0 start: `node ./bin/www`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the app@0.0.0 start script 'node ./bin/www'.
npm ERR! This is most likely a problem with the app package,
npm ERR! not with npm itself.
npm ERR! Tell the author that this fails on your system:
npm ERR!     node ./bin/www
npm ERR! You can get their info via:
npm ERR!     npm owner ls app
npm ERR! There is likely additional logging output above.

npm ERR! Please include the following file with any support request:
npm ERR!     /home/bitnami/edupal/npm-debug.log

我不确定自己做错了什么，并尝试了许多连接到 MongoDB 的变体……我已经卡了两天了。

Answer 1

Bitnami 开发者在这里。

您发布了您可以使用 root 用户连接到管理数据库

bitnami@ip-172-31-43-127:~/edupal$ sudo mongo admin --username root
--password pwdremoved MongoDB shell version: 3.0.3 connecting to: /opt/bitnami/mongodb/tmp/mongodb-27017.sock:27017/admin

但后来您尝试连接到“索引”数据库

mongoose.createConnection('mongodb://root:pwdremoved@/opt/bitnami/mongodb/tmp/mongodb-27017.sock/indexes');

该数据库是否已创建？您可以使用以下命令检查创建的数据库：

show dbs

如果你想使用 admin 数据库，你需要使用这一行：

mongoose.createConnection('mongodb://root:pwdremoved@/opt/bitnami/mongodb/tmp/mongodb-27017.sock/admin');

如果您不想使用 root 用户和管理员密码，可以查看本指南以了解如何创建数据库并向新用户授予权限。

https://wiki.bitnami.com/Components/mongoDB#How_to_create_a_database_for_a_custom_application.3f

我安装了 Meanstack 3.0.3-0，并按照我们 wiki 中关于如何创建示例 TODO 列表的教程进行操作，一切正常。您可以通过以下链接查看。

https://wiki.bitnami.com/index.php?title=Infrastructure_Stacks/BitNami_MEAN_Stack_(MongoDB%2C_Express%2C_Angular%2C_Node.js)#How_to_create_a_sample_TODO_list_project_with_MEAN.3f

我希望这会有所帮助。