What is the socket declaration for, in Ruby on Rails database.yml?

Question

What\'s the use of socket declaration in config/database.yml ?

Example code:

staging:
  adapter: mysql
  encoding: utf8
  database: (database)
  pool         


        

Answer 1

This displays the file location for the UNIX socket:

mysqladmin version -u 'your user name' -p

result:

mysqladmin  Ver 8.42 Distrib 5.7.26, for Linux on x86_64
Copyright (c) 2000, 2019, Oracle and/or its affiliates. All rights reserved.

Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.

Server version      5.7.26-0ubuntu0.19.04.1
Protocol version    10
Connection      Localhost via UNIX socket
UNIX socket     /var/run/mysqld/mysqld.sock
Uptime:         6 min 40 sec

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