I just updated my Docker for Mac last week. I’m now using 1.12.3. Before, the connection to the database container was normal but after the update it became extremely slow. It can take about 10 minutes to update the schema of a Symfony application, for instance. Or about 10 minutes to import the dump of another SQL database. I read that using the IP instead of the container’s alias on the app could be a solution but it changes nothing for me. Is this a known issue? If not, where can I have more information about what’s happening?
The post where I read about the IP: http://stackoverflow.com/questions/40273330/docker-slow-non-local-database-access