mysql:Job for mysqld.service failed because the control process exited with error

1.啓動mysql時出現Job for mysqld.service failed because the control process exited with error 2.先查看mysql的日誌：tail -40f /var/log/mysql.log 紅圈裏面的信息是說明不能建立臨時文件「/var/lib/mysql/temp/ib1GIFsS」 3.接下來是修改配置文件，指定temp的

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