DbProxyIssue

Application with one GenServer doing calls to the database in synchronous mode.

See post on ElixirForum.

Installation

mix deps.get
MIX_ENV=test ecto.create # you may wish to update config/test.ex with your database config

How to reproduce the issue

Run:

while true; do mix test; done

Eventually, a GenServer error will occur. Example:

12:25:35.584 [error] GenServer DbProxyIssue.Worker terminating
** (stop) exited in: GenServer.call(#PID<0.197.0>, {:checkout, #Reference<0.0.2.1622>, true, 15000}, 5000)
    ** (EXIT) shutdown: "owner #PID<0.196.0> exited with: shutdown"
    (db_connection) lib/db_connection/ownership/proxy.ex:32: DBConnection.Ownership.Proxy.checkout/2

Work-arounds:

• Set the pool_size to 1 in config/test.exs
• Sleep 100ms before running the test (:timer.sleep(100) in test/support/test_case.ex)