Symfony 2 SQLSTATE[HY000] [2002] Connection refused Error - symfony

Question

I get an error like database operations using Symfony2.
SQLSTATE[HY000] [2002] Connection refused
parameters.yml
parameters:
database_driver: pdo_mysql
database_host: 127.0.0.1
database_port: '8889'
database_name: symfony
database_user: root
database_password: root
mailer_transport: smtp
mailer_host: 127.0.0.1
mailer_user: null
mailer_password: null
locale: tr
secret: ef9b4381fe75208f060b7c786951242bebcfb3c2
database_path: /private/var/mysql/mysql.sock
And console:
Kemal-Karakass-MacBook-Pro:~ kemalkarakas$ locate mysql.sock
/private/var/mysql/mysql.sock
How do I resolve the error?

Answer 1

i had the same issue and fixed it changing
database_host: 127.0.0.1
to
database_host: localhost
in parameters.yml
hopefully this helps

Answer 2

On Mac OSX using Mamp Pro, what solved the problem for me was going to the MySQL tab on the UI and checking the option Allow network access to MySQL
Don't forget to click Save to update the settings

Answer 3

There is a parameter unix_socket you can use within your config.yml.
See full configuration example:
# Doctrine Configuration
doctrine:
dbal:
default_connection: default
connections:
default:
driver: %database_driver%
dbname: %database_name%
user: %database_user%
host: %database_host%
password: %database_password%
unix_socket: /tmp/mysql.sock

Answer 4

I had the same problem using MAMP because the default port is not 3306 but 8889.
You can find that information in the MAMP starting web page.
My parameters
parameters:
database_driver: pdo_mysql
database_host: 127.0.0.1
database_port: '8889'
database_name: symfony_blog
database_user: root
database_password: root
mailer_transport: smtp
mailer_host: 127.0.0.1
mailer_user: null
mailer_password: null
locale: en
secret: 7f03537e81f981683bc773b9ec7113ab5861adec
database_path: null

Answer 5

This is a bit stupid but I arrived on this post googling the same error, so maybe this can help someone.
In case you have this Connection refused Error double check that your database is up and running, in my case I simply forgot to power on MAMP...

Answer 6

Had this issue "SQLSTATE[HY000] [2002] No such file or directory" on symfony 3.2.9 on deployment
I fixed it by changing the database_host value from "localhost" to my server IP on my parameters.yml file
but I had this another error message when trying to run commandline by SSH:
[Doctrine\DBAL\Exception\ConnectionException]
An exception occured in driver: SQLSTATE[HY000] [2002] Connection refused
I finaly fix it by adding these 2 lines on my config.yml file in Doctrine configuration section :
unix_socket: /var/lib/mysql/mysql.sock
server_version: '5.5'
all my final doctrine configuration is like this:
doctrine:
dbal:
driver: pdo_mysql
host: '%database_host%'
port: '%database_port%'
dbname: '%database_name%'
user: '%database_user%'
password: '%database_password%'
unix_socket: /var/lib/mysql/mysql.sock
server_version: '5.5'
charset: UTF8
hopefully this helps

Answer 7

After seeing the answers and playing around with this myself I figured out the problem:
The default installation of LAMPP, MAMPP has the following in the my.cnf file:
skip-networking
This means that mysql will not listen on TCP/IP so you can tell doctrine to try any port in the 64K and it won't do any good until you comment out the directive above and get mysql to listen to TCP/IP ports.
Please ensure you restart LAMPP, MAMPP or reload mysql after commenting out the skip-networking directive.

Answer 8

If anyone is still stuck on this issue when using a virtual environment, I found if you are attempting to run database commands on the host machine and running into the "connection refused" error, try ssh-ing into your guest machine and running the commands directly so the path to mysql.sock is correct.
(I guess it makes sense that the relative path needs to be on the virtual guest machine, not the host machine).

Answer 9

Configuring symfony2/doctrine to connect to MySQL using host:port
comment out doctrine.dbal.path: %database_path% in app/config/config.yml
remove/comment out the parameter database_path from app/config/parameters.yml
check your configuration files for correct indentation
wrap either none of the values in app/config/parameters.yml single quotes or put all in double quotes.
Afterwards your configuration should look like this:
Parameters
# app/config/parameters.yml
parameters:
database_driver: "pdo_mysql"
database_host: "127.0.0.1"
database_port: "8889"
database_name: "symfony"
database_user: "root"
database_password: "root"
# comment out or remove
# database_path: ~
Configuration
# app/config/config.yml
# ...
doctrine:
dbal:
driver: %database_driver%
host: %database_host%
port: %database_port%
dbname: %database_name%
user: %database_user%
password: %database_password%
charset: UTF8
# path is for pdo_sqlite: i.e. %kernel.root_dir%/data/data.db3
# comment it out !
# path: ~

Answer 10

Running on MAMP, this is what configuration of /app/config/parameters.yml that worked for me:
parameters:
database_host: '127.0.0.1'
database_port: '8889'
database_name: test
database_user: root
database_password: root
I lost quite some time with database_host: localhost, which didn't work.
Beginners Tips:
Don't forget to remove the semicolon ; to enable extension=php_pdo_mysql.dll in php.ini (in application/MAMP/conf/phpX.X.X - check your current version in MAMP settings)
and/or in php.ini and/or php.ini.default in Macintosh HD/private/etc (use spotlight search to find this hidden file).

Answer 11

Today on a fresh installation of Symfony3 I had the same error:
SQLSTATE[HY000] [2002] Permission denied
Installation specs:
CentOS Linux 7.2.1511
Symfony 3.1.2
MariaDB 5.5.47
PHP 7.0.8
An earlier answer by izus did resolve the problem on my server. He suggests to change the parameter database_host from 127.0.0.1 to localhost in the Symfony configuration file app/config/parameters.yml
The real origin of the problem was not inside Symfony configuration, but authorization inside the database server. I've created the database and authorization for this database by executing the following SQL queries:
CREATE DATABASE user CHARACTER SET utf8 COLLATE utf8_bin;
GRANT ALL PRIVILEGES ON database.* TO user#localhost IDENTIFIED BY 'password';
This query implies only the host 'localhost' is authorized. This doesn't match '127.0.0.1' exactly. The database server rejects the incomming connection, and Symfony is throwing an exception and showing this error message.
Possible solutions to this specific situation:
Change the database_host parameter
Change the authorization inside the database server

Answer 12

In MAMP PRO I have activated "Allow Network Access to mysql" and my "php artisan migrate" is working now for that special app.