I get an error like database operations using Symfony2.
SQLSTATE[HY000] [2002] Connection refused
parameters.yml
parameters
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).