阿里云ecs 部署程序，启动程序，报连接不上数据库错误
##本地连接服务器上的数据库可以正常启动项目访问
> origin-cms@1.0.0 debug E:\房e安\node\origin-cms
> egg-bin debug

Debugger attached.
Debugger attached.
Debugger attached.
Waiting for the debugger to disconnect...
[egg-ts-helper] create typings\app\controller\index.d.ts (10ms)
[egg-ts-helper] create typings\app\model\index.d.ts (14ms)
[egg-ts-helper] create typings\config\index.d.ts (50ms)
[egg-ts-helper] create typings\config\plugin.d.ts (13ms)
[egg-ts-helper] create typings\app\service\index.d.ts (15ms)
[egg-ts-helper] create typings\app\index.d.ts (3ms)
2020-12-27 09:38:30,551 INFO 17396 [master] node version v14.15.0
2020-12-27 09:38:30,554 INFO 17396 [master] egg version 2.29.1
Debugger attached.
(node:10368) [SEQUELIZE0006] DeprecationWarning: This database engine version is not supported, please update your database server. More information https://github.com/sequelize/sequelize/blob/master/ENGINE.md
(Use `node --trace-deprecation ...` to show where the warning was created)
2020-12-27 09:38:36,440 INFO 10368 [egg-sequelize](11ms) Executed (default): SELECT 1+1 AS result
2020-12-27 09:38:36,450 INFO 17396 [master] agent_worker#1:10368 started (5883ms)
Debugger attached.
9230 opened
Debug Proxy online, now you could attach to 9999 without worry about reload.
DevTools → chrome-devtools://devtools/bundled/inspector.html?experiments=true&v8only=true&ws=127.0.0.1:9999/__ws_proxy__
(node:14980) [SEQUELIZE0006] DeprecationWarning: This database engine version is not supported, please update your database server. More information https://github.com/sequelize/sequelize/blob/master/ENGINE.md
(Use `node --trace-deprecation ...` to show where the warning was created)
2020-12-27 09:38:42,838 INFO 14980 [egg-sequelize](17ms) Executed (default): SELECT 1+1 AS result
2020-12-27 09:38:42,892 INFO 17396 [master] **### egg started on http://127.0.0.1:7001 (12337ms)**
##部署到阿里云ecs  启动项目报错
[root@iZwz9hne8994mz6kht96fgZ origin-cms]# npm start

> origin-cms@1.0.0 start /www/wwwroot/origin-cms
> egg-scripts start --daemon --title=egg-server-origin-cms

[egg-scripts] Starting egg application at /www/wwwroot/origin-cms
[egg-scripts] Run node /www/wwwroot/origin-cms/node_modules/egg-scripts/lib/start-cluster {"title":"egg-server-origin-cms","baseDir":"/www/wwwroot/origin-cms","framework":"/www/wwwroot/origin-cms/node_modules/egg"} --title=egg-server-origin-cms
[egg-scripts] Save log file to /root/logs
[egg-scripts] Wait Start: 1...
[egg-scripts] tail -n 100 /root/logs/master-stderr.log
[egg-scripts] Got error when startup: 
[egg-scripts] (node:11261) [SEQUELIZE0006] DeprecationWarning: This database engine version is not supported, please update your database server. More information https://github.com/sequelize/sequelize/blob/master/ENGINE.md
[egg-scripts] (Use `node --trace-deprecation ...` to show where the warning was created)
[egg-scripts] 
[egg-scripts] Start got error, see /root/logs/master-stderr.log
[egg-scripts] Or use `--ignore-stderr` to ignore stderr at startup.
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! origin-cms@1.0.0 start: `egg-scripts start --daemon --title=egg-server-origin-cms`
npm ERR! Exit status 1
npm ERR! 
npm ERR! Failed at the origin-cms@1.0.0 start script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.

npm ERR! A complete log of this run can be found in:
npm ERR!     /root/.npm/_logs/2020-12-27T01_34_04_982Z-debug.log
[root@iZwz9hne8994mz6kht96fgZ origin-cms]# 

##数据库配置文件
  config.sequelize = {
    dialect: 'mysql',
    host: '',
    port: 3506,
    database: '',
    username: '',
    password: '',
    define: {
      underscored: true
    }
  }