[Ruby on rails] crash mysql

Bonjour,

J'ai voulus faire un site avec mysql pour la première fois ^^ problème c'est que ça ma fait une erreur donc j'ai créer ma migration avec rails g migration .... (les info qui faut ^^) puis après j'ai fait rails db:migrate et la boom explosion d'erreur ^^

rails aborted!
Mysql2::Error: Can't connect to local MySQL server through socket '/run/mysqld/mysqld.sock' (2 "No such file or directory")
/home/maxime/.gem/ruby/2.3.0/gems/mysql2-0.4.5/lib/mysql2/client.rb:89:in `connect'
/home/maxime/.gem/ruby/2.3.0/gems/mysql2-0.4.5/lib/mysql2/client.rb:89:in `initialize'
/home/maxime/.gem/ruby/2.3.0/gems/activerecord-5.0.0.1/lib/active_record/connection_adapters/mysql2_adapter.rb:25:in `new'
/home/maxime/.gem/ruby/2.3.0/gems/activerecord-5.0.0.1/lib/active_record/connection_adapters/mysql2_adapter.rb:25:in `mysql2_connection'
/home/maxime/.gem/ruby/2.3.0/gems/activerecord-5.0.0.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:721:in `new_connection'
/home/maxime/.gem/ruby/2.3.0/gems/activerecord-5.0.0.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:765:in `checkout_new_connection'
/home/maxime/.gem/ruby/2.3.0/gems/activerecord-5.0.0.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:744:in `try_to_checkout_new_connection'
/home/maxime/.gem/ruby/2.3.0/gems/activerecord-5.0.0.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:705:in `acquire_connection'
/home/maxime/.gem/ruby/2.3.0/gems/activerecord-5.0.0.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:501:in `checkout'
/home/maxime/.gem/ruby/2.3.0/gems/activerecord-5.0.0.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:364:in `connection'
/home/maxime/.gem/ruby/2.3.0/gems/activerecord-5.0.0.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:875:in `retrieve_connection'
/home/maxime/.gem/ruby/2.3.0/gems/activerecord-5.0.0.1/lib/active_record/connection_handling.rb:128:in `retrieve_connection'
/home/maxime/.gem/ruby/2.3.0/gems/activerecord-5.0.0.1/lib/active_record/connection_handling.rb:91:in `connection'
/home/maxime/.gem/ruby/2.3.0/gems/activerecord-5.0.0.1/lib/active_record/migration.rb:1099:in `initialize'
/home/maxime/.gem/ruby/2.3.0/gems/activerecord-5.0.0.1/lib/active_record/migration.rb:1005:in `new'
/home/maxime/.gem/ruby/2.3.0/gems/activerecord-5.0.0.1/lib/active_record/migration.rb:1005:in `up'
/home/maxime/.gem/ruby/2.3.0/gems/activerecord-5.0.0.1/lib/active_record/migration.rb:983:in `migrate'
/home/maxime/.gem/ruby/2.3.0/gems/activerecord-5.0.0.1/lib/active_record/tasks/database_tasks.rb:161:in `migrate'
/home/maxime/.gem/ruby/2.3.0/gems/activerecord-5.0.0.1/lib/active_record/railties/databases.rake:58:in `block (2 levels) in <top (required)>'
/home/maxime/.gem/ruby/2.3.0/gems/railties-5.0.0.1/lib/rails/commands/rake_proxy.rb:13:in `block in run_rake_task'
/home/maxime/.gem/ruby/2.3.0/gems/railties-5.0.0.1/lib/rails/commands/rake_proxy.rb:10:in `run_rake_task'
/home/maxime/.gem/ruby/2.3.0/gems/railties-5.0.0.1/lib/rails/commands/commands_tasks.rb:51:in `run_command!'
/home/maxime/.gem/ruby/2.3.0/gems/railties-5.0.0.1/lib/rails/commands.rb:18:in `<top (required)>'
/home/maxime/Sites/My Project/Learn/bin/rails:9:in `require'
/home/maxime/Sites/My Project/Learn/bin/rails:9:in `<top (required)>'
/home/maxime/Sites/My Project/Learn/bin/spring:14:in `<top (required)>'
bin/rails:3:in `load'
bin/rails:3:in `<main>'
Tasks: TOP => db:migrate
(See full trace by running task with --trace)

Puis après je me suis dit on vas voir se que ça fait si je tape mysql dans mon terminal

ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/run/mysqld/mysqld.sock' (2 "No such file or directory")

PS : je suis sur antergos j'ai installer le paquet mariadb (qui installe mysql en dépendance)

Merci pour votre aide