PSA on Ecto "connection not available and request was dropped from queue after 2028ms. This means requests are coming in and your connection pool cannot serve them fast enough"

[paulanthonywilson]

It could not connect at all. I found this earlier thread on intermittent errors which is a different thing (I suspect being insufficient connections available in Postgres itself).

(If I were to try and debug the differences between the Ecto (or other lib) versions I’d start by looking at the parameters to Postgrex.start_link/1 and how/where the connection url is parsed.)