Bagaimana cara terhubung ke database mongodb di Heroku menggunakan luwak?

Saat ini aplikasi saya berfungsi dengan baik secara lokal dan dapat terhubung ke database lokal saya.

Saat ini kesalahan yang saya dapatkan saat mencoba menjalankannya di heroku:

2014-04-17T06:32:23.404458+00:00 app[web.1]: > [email protected] start /app
2014-04-17T06:32:23.404460+00:00 app[web.1]: > node app.js
2014-04-17T06:32:24.052231+00:00 app[web.1]: /public/images/test_image.jpg
2014-04-17T06:32:24.090050+00:00 app[web.1]: Database connection error, fcukkk: [Error: failed to connect to [localhost:27017]]
2014-04-17T06:32:24.084553+00:00 app[web.1]: Express server listening on port 23569
2014-04-17T06:32:24.630834+00:00 heroku[web.1]: State changed from starting to up
2014-04-17T06:33:08.084028+00:00 heroku[router]: at=error code=H12 desc="Request timeout" method=GET path=/ host=pure-cliffs-4076.herokuapp.com request_id=9bf3db67-e00e-428a-896c-26c03dfa01ff fwd="68.99.126.105" dyno=web.1 connect=1ms service=30000ms status=503 bytes=0
2014-04-17T06:33:08.094792+00:00 app[web.1]: GET / 200 29995ms
2014-04-17T06:33:08.624842+00:00 heroku[router]: at=info method=GET path=/favicon.ico host=pure-cliffs-4076.herokuapp.com request_id=d09fe61e-f608-47fd-9b1f-a5b4ea54a2a9 fwd="68.99.126.105" dyno=web.1 connect=1ms service=8ms status=404 bytes=193
2014-04-17T06:33:08.620901+00:00 app[web.1]: GET /favicon.ico 404 5ms
2014-04-17T06:33:44.013253+00:00 heroku[web.1]: State changed from up to starting
2014-04-17T06:33:43.925737+00:00 heroku[api]: Add mongolab:sandbox add-on by [email protected]
2014-04-17T06:33:43.925801+00:00 heroku[api]: Release v4 created by [email protected]
2014-04-17T06:33:47.537662+00:00 heroku[web.1]: Stopping all processes with SIGTERM
2014-04-17T06:33:48.704235+00:00 he
roku[web.1]: Starting process with command `npm start`
2014-04-17T06:33:49.868707+00:00 app[web.1]: > [email protected] start /app
2014-04-17T06:33:49.868699+00:00 app[web.1]: 
2014-04-17T06:33:49.868711+00:00 app[web.1]: 
2014-04-17T06:33:49.868709+00:00 app[web.1]: > node app.js
2014-04-17T06:33:50.254949+00:00 app[web.1]: /public/images/test_image.jpg
2014-04-17T06:33:50.274924+00:00 app[web.1]: Database connection error, fcukkk: [Error: failed to connect to [localhost:27017]]
2014-04-17T06:33:50.271844+00:00 app[web.1]: Express server listening on port 21153
2014-04-17T06:33:49.631038+00:00 heroku[web.1]: Process exited with status 143
2014-04-17T06:33:50.361358+00:00 heroku[web.1]: State changed from starting to up
2014-04-17T07:38:52.772530+00:00 heroku[web.1]: Idling
2014-04-17T07:38:52.773249+00:00 heroku[web.1]: State changed from up to down
2014-04-17T07:38:56.398500+00:00 heroku[web.1]: Stopping all processes with SIGTERM
2014-04-17T07:38:59.466635+00:00 heroku[web.1]: Process exited with status 143
2014-04-17T18:18:34.665450+00:00 heroku[web.1]: Unidling
2014-04-17T18:18:34.665450+00:00 heroku[web.1]: State changed from down to starting
2014-04-17T18:18:39.773345+00:00 heroku[web.1]: Starting process with command `npm start`
2014-04-17T18:18:41.209327+00:00 app[web.1]: 
2014-04-17T18:18:41.209334+00:00 app[web.1]: > [email protected] start /app
2014-04-17T18:18:41.209336+00:00 app[web.1]: > node app.js
2014-04-17T18:18:41.209466+00:00 app[web.1]: 
2014-04-17T18:18:41.831107+00:00 app[web.1]: /public/images/test_image.jpg
2014-04-17T18:18:41.863975+00:00 app[web.1]: Database connection error, fcukkk: [Error: failed to connect to [localhost:27017]]
2014-04-17T18:18:41.859394+00:00 app[web.1]: Express server listening on port 56521
2014-04-17T18:18:41.983113+00:00 heroku[web.1]: State changed from starting to up
2014-04-17T18:19:12.750685+00:00 heroku[router]: at=error code=H12 desc="Request timeout" method=GET path=/ host=pure-cliffs-4076.herokuapp.com request_id=b7e7cab0-e79f-4457-9e5d-1acbfd494ef0 fwd="68.99.126.105" dyno=web.1 connect=5ms service=30001ms status=503 bytes=0
2014-04-17T18:19:12.754834+00:00 app[web.1]: GET / 200 29995ms
2014-04-17T19:21:21.596778+00:00 heroku[web.1]: Idling
2014-04-17T19:21:21.597514+00:00 heroku[web.1]: State changed from up to down
2014-04-17T19:21:26.046285+00:00 heroku[web.1]: Stopping all processes with SIGTERM
2014-04-17T19:21:28.181093+00:00 heroku[web.1]: Process exited with status 143
2014-04-17T20:56:21.949618+00:00 heroku[web.1]: Unidling
2014-04-17T20:56:21.949987+00:00 heroku[web.1]: State changed from down to starting
2014-04-17T20:56:31.657944+00:00 heroku[web.1]: Starting process with command `npm start`
2014-04-17T20:56:33.655866+00:00 app[web.1]: 
2014-04-17T20:56:33.655871+00:00 app[web.1]: > [email protected] start /app
2014-04-17T20:56:33.655873+00:00 app[web.1]: > node app.js
2014-04-17T20:56:33.655875+00:00 app[web.1]: 
2014-04-17T20:56:34.682567+00:00 app[web.1]: /public/images/test_image.jpg
2014-04-17T20:56:34.706650+00:00 app[web.1]: Database connection error, fcukkk: [Error: failed to connect to [localhost:27017]]
2014-04-17T20:56:34.703013+00:00 app[web.1]: Express server listening on port 21923
2014-04-17T20:56:35.308394+00:00 heroku[web.1]: State changed from starting to up
2014-04-17T20:57:08.004131+00:00 heroku[router]: at=error code=H12 desc="Request timeout" method=GET path=/ host=pure-cliffs-4076.herokuapp.com request_id=033a5a44-68a3-4b1c-8f6c-5755371d076d fwd="68.99.126.105" dyno=web.1 connect=1ms service=30000ms status=503 bytes=0
2014-04-17T20:57:08.005107+00:00 app[web.1]: GET / 200 29992ms
2014-04-17T21:17:36.623084+00:00 heroku[router]: at=error code=H12 desc="Request timeout" method=GET path=/ host=pure-cliffs-4076.herokuapp.com request_id=1117b0b1-da9d-4fef-ad79-f1a5c4178807 fwd="68.99.126.105" dyno=web.1 connect=2ms service=30000ms status=503 bytes=0
2014-04-17T21:17:36.625513+00:00 app[web.1]: GET / 200 30000ms
2014-04-17T22:07:00.807923+00:00 heroku[web.1]: Idling
2014-04-17T22:07:00.809134+00:00 heroku[web.1]: State changed from up to down
2014-04-17T22:07:04.732639+00:00 heroku[web.1]: Stopping all processes with SIGTERM
2014-04-17T22:07:07.514765+00:00 heroku[web.1]: Process exited with status 143
2014-04-17T22:32:27+00:00 heroku[slug-compiler]: Slug compilation started
2014-04-17T22:33:00+00:00 heroku[slug-compiler]: Slug compilation finished
2014-04-17T22:33:00.065665+00:00 heroku[web.1]: State changed from down to starting
2014-04-17T22:32:59.921981+00:00 heroku[api]: Deploy 0e3a24a by [email protected]
2014-04-17T22:32:59.922073+00:00 heroku[api]: Release v5 created by [email protected]
2014-04-17T22:33:05.771395+00:00 heroku[web.1]: Starting process with command `npm start`
2014-04-17T22:33:07.654364+00:00 app[web.1]: > [email protected] start /app
2014-04-17T22:33:07.654367+00:00 app[web.1]: 
2014-04-17T22:33:07.654366+00:00 app[web.1]: > node app.js
2014-04-17T22:33:07.654359+00:00 app[web.1]: 
2014-04-17T22:33:08.435746+00:00 app[web.1]: /public/images/test_image.jpg
2014-04-17T22:33:08.474993+00:00 app[web.1]: Express server listening on port 20321
2014-04-17T22:33:08.771030+00:00 app[web.1]: sup stud, Database connected.
2014-04-17T22:33:08.770901+00:00 app[web.1]: Succeeded connected to: mongodb://mongodb://heroku_app24230415:[email protected]:45157/heroku_app24230415/images
2014-04-17T22:33:08.577315+00:00 heroku[web.1]: State changed from starting to up
2014-04-17T22:33:48.606992+00:00 app[web.1]: []
2014-04-17T22:33:49.143625+00:00 heroku[router]: at=info method=GET path=/ host=pure-cliffs-4076.herokuapp.com request_id=982dd016-e68c-4190-a41e-c3a6780a06ef fwd="68.99.126.105" dyno=web.1 connect=2ms service=624ms status=500 bytes=7683
2014-04-17T22:33:49.176065+00:00 app[web.1]:     13|                   form(method="POST" action="/view/#{image._id}" enctype="multipart/form-data")
2014-04-17T22:33:49.176067+00:00 app[web.1]:     14|                     input(type="image" src="/images/#{image.source}" name="bigImage" width="300")
2014-04-17T22:33:49.176068+00:00 app[web.1]: 
2014-04-17T22:33:49.176060+00:00 app[web.1]:     10|               li
2014-04-17T22:33:49.176070+00:00 app[web.1]: Cannot read property 'source' of undefined
2014-04-17T22:33:49.176050+00:00 app[web.1]: TypeError: /app/views/index.jade:11
2014-04-17T22:33:49.176063+00:00 app[web.1]:     12|                 span
2014-04-17T22:33:49.176062+00:00 app[web.1]:   > 11|                 img(src="/images/#{image.source}" name="original")
2014-04-17T22:33:49.176058+00:00 app[web.1]:     9|             each image in images
2014-04-17T22:33:49.176078+00:00 app[web.1]:     at res (/app/node_modules/jade/lib/jade.js:173:38)
2014-04-17T22:33:49.176071+00:00 app[web.1]:     at eval (eval at <anonymous> (/app/node_modules/jade/lib/jade.js:172:8), <anonymous>:78:56)
2014-04-17T22:33:49.176073+00:00 app[web.1]:     at eval (eval at <anonymous> (/app/node_modules/jade/lib/jade.js:172:8), <anonymous>:165:4)
2014-04-17T22:33:49.176075+00:00 app[web.1]:     at eval (eval at <anonymous> (/app/node_modules/jade/lib/jade.js:172:8), <anonymous>:184:21)
2014-04-17T22:33:49.176079+00:00 app[web.1]:     at Object.exports.render (/app/node_modules/jade/lib/jade.js:269:10)
2014-04-17T22:33:49.176084+00:00 app[web.1]:     at View.render (/app/node_modules/express/lib/view.js:76:8)
2014-04-17T22:33:49.176081+00:00 app[web.1]:     at Object.exports.renderFile (/app/node_modules/jade/lib/jade.js:305:18)
2014-04-17T22:33:49.176082+00:00 app[web.1]:     at View.exports.renderFile [as engine] (/app/node_modules/jade/lib/jade.js:290:21)
2014-04-17T22:33:49.176087+00:00 app[web.1]:     at ServerResponse.res.render (/app/node_modules/express/lib/response.js:798:7)
2014-04-17T22:33:49.176085+00:00 app[web.1]:     at Function.app.render (/app/node_modules/express/lib/application.js:504:10)
2014-04-17T22:33:49.181859+00:00 app[web.1]: GET / 500 607ms

Ini adalah bagian yang relevan dari file app.js saya:

var uristring= 'mongodb://'+process.env.MONGOLAB_URI+'/images';

var theport = process.env.PORT  || 5000;
var appDir = path.dirname(require.main.filename);
mongoose.connect(uristring, function(err,res){
        if (err) {
                console.log('ERROR connecting to: '+uristring+'. ' + err)
        }
        else {
                console.log('Succeeded connected to: '+uristring);
        }
});
var conn = mongoose.connection;
conn.on('error', console.error.bind(console, 'Database connection error, fcukkk:'));
conn.once('open', function callback() {console.log("sup stud, Database connected.")});

Saya bingung karena tidak disebutkan di dokumen https://devcenter.heroku.com/articles/nodejs-mongoose untuk benar-benar membuat database yang saya coba sambungkan. Saya berasumsi ini adalah sesuatu yang dilakukan luwak ketika Anda pertama kali terhubung ke db.


node.js javascript mongodb mongoose heroku
person BigBoy1337    schedule 17.04.2014    source sumber

Jawaban (1)


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Apakah Anda menyadari bahwa Anda berhasil terhubung di akhir log? 3 kali pertama ia mencari DB Anda di localhost:27017, tetapi yang keempat kalinya ia mencari alamat yang benar (sepertinya).

person adrichman    schedule 17.04.2014
comment
oh tidak, sebenarnya aku tidak melakukannya. Mengapa gagal pada tiga kali pertama? - person BigBoy1337; 18.04.2014
comment
Apakah hal itu selalu terjadi? Selain itu, apakah Anda menyadari bahwa Anda melakukan kesalahan saat mencoba membaca image.source dan image tidak terdefinisi? - person adrichman; 18.04.2014
comment
ya menurutku itu karena belum ada apa-apa di databaseku. Saya sedang berupaya menambahkan gambar ke database sekarang. Mengapa ia mencoba localhost:27017 berkali-kali? Sepertinya ia selalu mencobanya terlebih dahulu setidaknya satu atau dua kali sebelum mencoba yang benar - person BigBoy1337; 18.04.2014
comment
mungkin jawabannya terletak di bagian lain dari kode Anda? - person adrichman; 18.04.2014