mysql數據庫自動關閉

• 起因：部署在服務器的項目長時間未訪問報錯
  
• 分析：數據庫自動關閉造成的 參考鏈接
• 解決：
  查看所有tcp端口，確認mysql狀態：netstat -ntlp
  
  重啓mysql ：service mysql start
  1）問題1 重啓中出現

Job for mysql.service failed because the control process exited with error code.
See "systemctl status mysql.service" and "journalctl -xe" for details.

2）定位錯誤

tail /var/log/mysql/error.log

Cannot allocate memory for the buffer pool
Plugin initialization aborted with error Generic error.

3）解決方法：參考鏈接