當試圖啓動使用MongoLab插件Heroku上託管Node.js應用程序, 我在Heroku日誌時收到以下錯誤連接到MongoDB。它看起來像試圖連接到本地mongo,即使我已經設置了heroku環境變量。Heroku + MongoLab插件與Node.js應用程序連接錯誤 - 錯誤:連接ECONNREFUSED 127.0.0.1:27017
我的整個代碼是在這裏在GitHub上:https://github.com/yhagio/meetup_planner
Heroku的日誌
2015-11-28T22:22:58.460531+00:00 heroku[web.1]: Starting process with command `node server.js`
2015-11-28T22:22:59.353911+00:00 app[web.1]: Server started at port number: 38701
2015-11-28T22:22:59.303795+00:00 app[web.1]: Connecting to DB : mongodb://USERNAME:[email protected]:59804/heroku_tb6frdh6
2015-11-28T22:22:59.371719+00:00 app[web.1]:
2015-11-28T22:22:59.371723+00:00 app[web.1]: /app/node_modules/mongodb/lib/server.js:235
2015-11-28T22:22:59.371725+00:00 app[web.1]: process.nextTick(function() { throw err; })
2015-11-28T22:22:59.371725+00:00 app[web.1]: ^
2015-11-28T22:22:59.371729+00:00 app[web.1]: Error: connect ECONNREFUSED 127.0.0.1:27017
2015-11-28T22:22:59.371730+00:00 app[web.1]: at Object.exports._errnoException (util.js:860:11)
2015-11-28T22:22:59.371731+00:00 app[web.1]: at exports._exceptionWithHostPort (util.js:883:20)
2015-11-28T22:22:59.371732+00:00 app[web.1]: at TCPConnectWrap.afterConnect [as oncomplete] (net.js:1063:14)
2015-11-28T22:23:00.052255+00:00 heroku[web.1]: Process exited with status 1
2015-11-28T22:23:00.880672+00:00 app[web.1]: Connecting to DB : mongodb://USERNAME:[email protected]:59804/heroku_tb6frdh6
2015-11-28T22:23:00.939388+00:00 app[web.1]:
2015-11-28T22:23:00.939392+00:00 app[web.1]: /app/node_modules/mongodb/lib/server.js:235
2015-11-28T22:23:00.939393+00:00 app[web.1]: process.nextTick(function() { throw err; })
2015-11-28T22:23:00.939397+00:00 app[web.1]: Error: connect ECONNREFUSED 127.0.0.1:27017
2015-11-28T22:23:00.939394+00:00 app[web.1]: ^
2015-11-28T22:23:00.939398+00:00 app[web.1]: at Object.exports._errnoException (util.js:860:11)
2015-11-28T22:23:00.939399+00:00 app[web.1]: at exports._exceptionWithHostPort (util.js:883:20)
2015-11-28T22:23:00.939400+00:00 app[web.1]: at TCPConnectWrap.afterConnect [as oncomplete] (net.js:1063:14)
2015-11-28T22:23:00.917276+00:00 app[web.1]: Server started at port number: 42573
2015-11-28T22:23:01.626965+00:00 heroku[web.1]: State changed from starting to crashed
2015-11-28T22:23:01.614846+00:00 heroku[web.1]: Process exited with status 1
2015-11-28T22:23:13.224552+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/" host=warm-retreat-5113.herokuapp.com request_id=54404d8a-7744-49ae-b744-4417abd4b347 fwd="166.62.227.154" dyno= connect= service= status=503 bytes=
2015-11-28T22:23:13.581322+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/favicon.ico" host=warm-retreat-5113.herokuapp.com request_id=063c0fef-8260-46b5-a0f6-b4d546e9a60b fwd="166.62.227.154" dyno= connect= service= status=503 bytes=
這裏是我讓到MongoDB的 server/db_connection.js的連接(從Heroku的MongoLab插件)的代碼
var mongoose = require('mongoose');
var config = require('../express-config');
var userModel = require('./models/user');
var eventModel = require('./models/event');
function makeDefaultConnection() {
var uri = process.env.MONGOLAB_URI || '127.0.0.1/meetupplanner';
console.log('Connecting to DB : ', uri);
var conn = mongoose.createConnection(uri);
conn.on('error', function(err){
console.log('Connection Error ::: ', err);
});
conn.model('User', userModel.userSchema);
conn.model('Event', eventModel.eventSchema);
return conn;
}
module.exports.defaultConnection = makeDefaultConnection();
檔案
web: node server.js
在Server.js
...
var port = process.env.PORT || 3000;
app.listen(port, function() {
console.log('Server started at port number: ', port);
});
後,我加在Heroku MongoLab附加組件我覈實,我的MONGOLAB_URI設置在Heroku(設置>配置變量)
參考:https://devcenter.heroku.com/articles/mongolab
在StackOverflow上提出的問題:
注意,我可以連接到通過蒙戈外殼:
$ mongo ds059804.mongolab.com:59804/heroku_tb6frdh6 -u USERNAME -p PASSWORD
我覺得憑據的罰款。
它看起來像什麼是錯的與你的配置變量,儘管你所說的有正確的。我認爲你也會遇到'conn.model('User',userModel.userSchema)'問題,因爲我認爲模型是貓鼬上的方法,而不是mongoose.connect –
@SimonH哦對不起,我修改了'connect 'createConnection',它在本地工作,但不在Heroku上。我刪除並重新添加了插件,但仍然是同樣的問題。因爲我可以使用憑證登錄到mongo shell,但配置看起來不錯... – Yuichi
如果您看時間戳,我不知道您認爲的代碼是否會導致問題。對本地主機的引用似乎晚於連接嘗試的console.log –