pond

# This monkey patches the PostgreSQL adapter to use asynchronous
# communication when doing its "SELECT 1" check for is-connection-active.
# One symptom of this problem is stalled processing queues in Sidekiq.
# See also:
#
# https://github.com/rails/rails/issues/12867
#
# At the time of writing we have seen indefinite blocking down in the C
# library's "poll()" method due to the out-of-box Rails code using blocking
# I/O, in multithreaded environments - one thread gets stuck in the I/O and