ERROR 2002 (HY000): Can‘t connect to local MySQL server through socket ‘/tmp/mysql.sock‘问题解决

博文背景

直接使用Mysql命令登录glibc安装的MySQL8时出现了ERROR 2002 (HY000): Can’t connect to local MySQL server through socket '/tmp/mysql.sock’的错误。

日志分析

ubuntu@shanghai:~ $ sudo ln -s /tmp/mysql.sock /var/mysql/mysql.sock
ln: failed to create symbolic link '/var/mysql/mysql.sock': No such file or directory
ubuntu@shanghai:~ $ sudo mkdir /var/mysql
ubuntu@shanghai:~ $ sudo ln -s /tmp/mysql.sock /var/mysql/mysql.sock
ubuntu@shanghai:~ $ mysql

Command 'mysql' not found, but can be installed with:

sudo apt install mysql-client-core-5.7   
sudo apt install mariadb-client-core-10.1

ubuntu@shanghai:~ $ cd /usr/local/bin/
ubuntu@shanghai:/usr/local/bin $ ./mysql
-bash: ./mysql: No such file or directory
ubuntu@shanghai:/usr/local/bin $ cd ..
ubuntu@shanghai:/usr/local $ cd mysql8/
ubuntu@shanghai:/usr/local/mysql8 $ ls
bin  data  docs  include  lib  LICENSE  man  README  share  support-files
ubuntu@shanghai:/usr/local/mysql8 $ cd bin/
ubuntu@shanghai:/usr/local/mysql8/bin $ ls
ibd2sdi         myisamlog          mysqlcheck           mysqldump                  mysqlslap
init.log        myisampack         mysql_config         mysqldumpslow              mysql_ssl_rsa_setup
innochecksum    my_print_defaults  mysql_config_editor  mysqlimport                mysql_tzinfo_to_sql
lz4_decompress  mysql              mysqld               mysqlpump                  mysql_upgrade
myisamchk       mysqladmin         mysqld_multi         mysql_secure_installation  perror
myisam_ftdump   mysqlbinlog