节点，Heroku，应用程序错误，connect.session（）MemoryStore不适用于生产环境

当我尝试部署到Heroku时，我的应用程序崩溃，我正在使用节点。 我认为问题是连接到数据库与Sequelize。

错误代码= H10

我认为这是和这里一样的问题： https : //github.com/ga-wdi-exercises/project3/issues/127

Heroku日志：

2017-04-24T07:42:40.134863+00:00 app[web.1]: Warning: connect.session() MemoryStore is not 2017-04-24T07:42:40.134878+00:00 app[web.1]: designed for a production environment, as it will leak 2017-04-24T07:42:40.134878+00:00 app[web.1]: memory, and will not scale past a single process. 2017-04-24T07:42:40.221903+00:00 app[web.1]: at Handshake._callback (/app/node_modules/sequelize/lib/dialects/mysql/connection-manager.js:80:20) 2017-04-24T07:42:40.221904+00:00 app[web.1]: at Protocol.handleNetworkError (/app/node_modules/mysql/lib/protocol/Protocol.js:364:14) 2017-04-24T07:42:40.221906+00:00 app[web.1]: at emitOne (events.js:96:13) 2017-04-24T07:42:40.221907+00:00 app[web.1]: at emitErrorNT (net.js:1276:8) 2017-04-24T07:42:40.221904+00:00 app[web.1]: at Handshake.Sequence.end (/app/node_modules/mysql/lib/protocol/sequences/Sequence.js:86:24) 2017-04-24T07:42:40.221905+00:00 app[web.1]: at Connection._handleNetworkError (/app/node_modules/mysql/lib/Connection.js:428:18) 2017-04-24T07:42:40.221906+00:00 app[web.1]: at Socket.emit (events.js:188:7) 2017-04-24T07:42:40.221908+00:00 app[web.1]: at process._tickCallback (internal/process/next_tick.js:98:9) 2017-04-24T07:42:40.221900+00:00 app[web.1]: Unhandled rejection SequelizeConnectionRefusedError: connect ECONNREFUSED 127.0.0.1:3306 2017-04-24T07:42:40.221908+00:00 app[web.1]: at _combinedTickCallback (internal/process/next_tick.js:74:11) 2017-04-24T07:42:40.303076+00:00 heroku[web.1]: Process exited with status 0 2017-04-24T07:42:40.289877+00:00 heroku[web.1]: State changed from starting to crashed 2017-04-24T08:06:36.194005+00:00 heroku[web.1]: State changed from crashed to starting 2017-04-24T08:06:40.381609+00:00 heroku[web.1]: Starting process with command `node index.js` 

Index.js：

 var port = process.env.PORT || 8000; db.sequelize.sync().then(() => { app.listen(port, () => { console.log('Web server started at port 8000!'); }); }); 

configuration：

 module.exports = { "development": { "username": process.env.DB_USERNAME, "password": null, "database": "blog-app", "host": "127.0.0.1", "dialect": "postgres" }, "test": { "username": process.env.DB_USERNAME, "password": null, "database": "blog-app-test", "host": "127.0.0.1", "dialect": "postgres" }, "production": { "username": process.env.DB_USERNAME, "password": null, "database": "blog-app-production", "host": "127.0.0.1", "dialect": "postgres" } }; 

的package.json：

 { "name": "ScienceMotion", "version": "1.0.0", "main": "index.js", "license": "MIT", "scripts": { "start": "node index.js" }, "dependencies": { "base64url": "^2.0.0", "bcryptjs": "^2.4.0", "body-parser": "^1.16.0", "bower": "^1.8.0", "express": "4.15.2", "express-routemap": "^1.0.2", "express-session": "^1.14.2", "method-override": "^2.3.7", "mocha": "^3.2.0", "morgan": "^1.7.0", "mysql": "^2.13.0", "nodemailer": "^2.7.0", "pg": "^6.1.5", "pg-native": "^1.10.0", "psql": "0.0.1", "pug": "^2.0.0-beta6", "sequelize": "^3.29.0", "slug": "^0.9.1" }, "engines": { "node": "6.9.1", "npm": "4.0.5" } }