DBConnection Error(DBConnection.ConnectionError) tcp recv: closed (PGPool)

I’d like to put few other references which might be related.

Quote from Medium:

The migration was smooth, and the pgbouncer is the mandatory layer for the large scale Elixir deployment to handle the connections in a better way. We tried pgpool as well(to leverage the features like caching and the read/write split), but seems there is no official support from Elixir for pgpool. It gave some issues in our tests. So we went live with pgbouncer.