【已解答】重启服务器后mysql数据库无法启动了，什么原因？

重启服务器后mysql数据库无法启动了，什么原因啊？点启动也还是显示关闭。哪里出问题了？

您好！数据库无法启动需要查看MySQL错误日志，执行以下命令查看错误日志。看不懂的话，找贵公司的程序员看一下。另外需要提醒以下您，在服务器正常运行的过程中不建议轻易重启，会对正在运行的服务造成损坏。

1. cat /www/server/data/*.err|grep -i -C 10 error

复制代码

[root@iz2zedb3lulnskao7fwrdnz ~]# cat /www/server/data/*.err|grep -i -C 10 error
2022-08-23 12:12:19 5651 [Note] InnoDB: Highest supported file format is Barracuda.
2022-08-23 12:12:20 5651 [Warning] InnoDB: Resizing redo log from 2*320 to 2*2048 pages, LSN=312707773
2022-08-23 12:12:20 5651 [Warning] InnoDB: Starting to delete and rewrite log files.
2022-08-23 12:12:20 5651 [Note] InnoDB: Setting log file /www/server/data/ib_logfile101 size to 32 MB
2022-08-23 12:12:20 5651 [Note] InnoDB: Setting log file /www/server/data/ib_logfile1 size to 32 MB
2022-08-23 12:12:20 5651 [Note] InnoDB: Renaming log file /www/server/data/ib_logfile101 to /www/server/data/ib_logfile0
2022-08-23 12:12:20 5651 [Warning] InnoDB: New log files created, LSN=312707773
2022-08-23 12:12:20 5651 [Note] InnoDB: 128 rollback segment(s) are active.
2022-08-23 12:12:20 5651 [Note] InnoDB: Waiting for purge to start
2022-08-23 12:12:20 5651 [Note] InnoDB: 5.6.50 started; log sequence number 312707773
2022-08-23 12:12:20 5651 [ERROR] /www/server/mysql/bin/mysqld: unknown variable 'port       =3306'
2022-08-23 12:12:20 5651 [ERROR] Aborting

2022-08-23 12:12:20 5651 [Note] Binlog end
2022-08-23 12:12:20 5651 [Note] Shutting down plugin 'partition'
2022-08-23 12:12:20 5651 [Note] Shutting down plugin 'ARCHIVE'
2022-08-23 12:12:20 5651 [Note] Shutting down plugin 'INNODB_SYS_DATAFILES'
2022-08-23 12:12:20 5651 [Note] Shutting down plugin 'INNODB_SYS_TABLESPACES'
2022-08-23 12:12:20 5651 [Note] Shutting down plugin 'INNODB_SYS_FOREIGN_COLS'
2022-08-23 12:12:20 5651 [Note] Shutting down plugin 'INNODB_SYS_FOREIGN'
2022-08-23 12:12:20 5651 [Note] Shutting down plugin 'INNODB_SYS_FIELDS'
2022-08-23 12:12:20 5651 [Note] Shutting down plugin 'INNODB_SYS_C

麻烦看看什么原因

重启服务器后mysql数据库无法启动了，什么原因？

宝塔用户_tqqsnc 发表于 2022-8-23 14:18
重启服务器后mysql数据库无法启动了，什么原因？

提示3306端口被占用了，您检查下