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MySQL5.5 shuts down the database and reports an error & what about quot;Can't connect to local MySQL server through socket"

Shulou Source: shulou.com Published: 2022-05-31 18:43:52 09月11日 Update

This article introduces the relevant knowledge of "MySQL5.5 shutting down the database and reporting errors" and "how to do Can't connect to local MySQL server through socket". In the operation of actual cases, many people will encounter such a dilemma, so let the editor lead you to learn how to deal with these situations. I hope you can read it carefully and be able to achieve something!

MySQL 5.5 shut down the database and report an error

[root@localhost] # / software/bin/mysqladmin-usystem-paired system 'shutdown

/ software/bin/mysqladmin: connect to server at 'localhost' failed

Error: 'Can't connect to local MySQL server through socket' / cluster_data/mysql.sock' (2)'

Check that mysqld is running and that the socket:'/ cluster_data/mysql.sock' exists!

Reason for reporting an error:

The database has used other socket before

Solution:

Specify the existing socket name in the shutdown database command parameter

View existing socket

[root@localhost ~] # ps-ef | grep mysql

Root 2487 2462 0 08:13? 00:00:00 / bin/sh / software/bin/mysqld_safe-- defaults-file=/mysql_data/cnf/my.cnf

Mysql 3057 2487 0 08:14 00:00:00 / software/bin/mysqld-- defaults-file=/mysql_data/cnf/my.cnf-- basedir=/software-- datadir=/mysql_data/70005-- plugin-dir=/software/lib/plugin-- user=mysql-- log-error=/mysql_log/err.log-- open-files-limit=10240-- pid-file=/mysql_data/70005/mysqld.pid-- socket=/mysql_data/70005/mysql.sock-- port=55057

Root 3092 3026 0 08:14 pts/1 00:00:00 grep mysql

[root@localhost ~] # / software/bin/mysqladmin -? | grep sock

-- protocol=name The protocol to use for connection (tcp, socket, pipe

-S,-- socket=name The socket file to use for connection.

Socket / cluster_data/mysql.sock

Shut down the database normally

[root@localhost] # / software/bin/mysqladmin-usystem-paired system 'shutdown-- socket=//mysql_data/70005/mysql.sock

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