performance_schema 修復

mysqld.log錯誤日誌以下：

2018-10-15 19:38:17 4341 [ERROR] /usr/local/mysql/bin/mysqld: Incorrect information in file: './performance_schema/accounts.frm'
2018-10-15 19:38:17 4341 [ERROR] /usr/local/mysql/bin/mysqld: Incorrect information in file: './performance_schema/cond_instances.frm'

修復方法爲： /usr/local/mysql/bin/mysql_upgrade -h127.0.0.1 -uroot -p'111111'

修復後記得重啓下數據庫
/etc/init.d/mysqld restart

而後再去查看日誌裏是否出現performance_schema 報錯