Question

SO上有很多这样的问题，但是没有一个真的有相同的问题。

我正在尝试使用sequelize连接到Postgres数据库，并且在本地与heroku上托管的数据库一起使用。几天前它也确实起作用了，但是现在它不起作用了，并且查看差异，该应用程序连接到数据库的方式没有改变。

当我部署该应用程序时，由于连接该应用程序未绑定到端口而导致Web工作者抛出超时，导致尝试连接数据库时卡住了。这使调试变得很困难，因为我没有遇到任何错误。

  async connect(): Promise<void> {
    const dbUrl = process.env.DATABASE_URL as string

    if (!dbUrl) {
      throw new Error('Cannot connect to database, url not set!')
    }

    logger.info(`connecting to database ${dbUrl.replace(/:(\w+)@/, ':***@')}`)

    this.sequelize = new Sequelize(dbUrl, {
      dialect: 'postgres',
      protocol: 'postgres',
      logging: (sql, timing) => {
        logger.debug(`Executed SQL query '${sql}' in ${timing} ms`)
      },
      dialectOptions: {
        decimalNumbers: true,
        ssl: true
      }
    })
    
    // it gets stuck here
    await this.sequelize.authenticate({
      logging: (sql, timing) => {
        logger.debug(`authentication ${sql}, ${timing}`)
      }
    })
    logger.info('Database connection successful')

    logger.info('initializing models...')
    await this.initializeModels(this.sequelize)
    logger.info('synching database...')
    await this.sequelize.sync({
      alter: true,
      logging: (sql, timing) => {
        logger.debug(`Executed SQL query '${sql}' in ${timing} ms`)
      }
    })
  }

以下是日志输出：

ct 23 02:59:34 staging-monk-backend heroku/web.1 State changed from crashed to starting
Oct 23 02:59:40 staging-monk-backend heroku/web.1 Starting process with command `npm start`
Oct 23 02:59:43 staging-monk-backend app/web.1
Oct 23 02:59:43 staging-monk-backend app/web.1 > 8bit-bot-backend@1.0.0 start /app
Oct 23 02:59:43 staging-monk-backend app/web.1 > node build/main.js
Oct 23 02:59:43 staging-monk-backend app/web.1
Oct 23 02:59:44 staging-monk-backend app/web.1 2020-10-23T09:59:44.371Z [info] : NODE_ENV is production 
Oct 23 02:59:44 staging-monk-backend app/web.1 2020-10-23T09:59:44.375Z [info] : debug mode is off  
Oct 23 02:59:44 staging-monk-backend app/web.1 2020-10-23T09:59:44.375Z [info] : connecting to database postgres://rlbditxvnovvvq:***@ec2-54-246-87-132.eu-west-1.compute.amazonaws.com:5432/dd1v94insrdacc 
Oct 23 02:59:45 staging-monk-backend app/api Build succeeded
Oct 23 03:00:40 staging-monk-backend heroku/web.1 Error R10 (Boot timeout) -> Web process failed to bind to $PORT within 60 seconds of launch
Oct 23 03:00:40 staging-monk-backend heroku/web.1 Stopping process with SIGKILL
Oct 23 03:00:41 staging-monk-backend heroku/web.1 Process exited with status 137
Oct 23 03:00:41 staging-monk-backend heroku/web.1 State changed from starting to crashed

Procfile：

web:npm start

版本

pg：7.5.0
sequelize：6.3.5

Answer 1

这个iOS - Safari - images not rendering fully / cut off为我指明了正确的方向。问题是pg软件包版本，升级到8.4.1后，一切又恢复正常了。

Sequelize卡在连接到Heroku Postgres数据库

1 个答案: