ubuntu下安装solr

1.卸载系统自带的mysql并重装

删除mysql

sudo apt purge mysql-*
sudo rm -rf /etc/mysql/ /var/lib/mysql
sudo apt autoremove

sudo apt autoreclean(如果提示指令有误，就把reclean改成clean)
依次输入这三条命令;

    sudo apt-get install mysql-server
    sudo apt install mysql-client
    sudo apt install libmysqlclient-dev