原因

需要更新mysql

措施

sudo mysql_upgrade -u root -p –force

出现以下内容成功

Checking server version. Running queries to upgrade MySQL server. Checking system database. ….. ….. Upgrade process completed successfully. Checking if update is needed.

第二步重启服务

sudo /etc/init.d/mysql restart

再次登陆数据库一切正常。

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