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By default, we configure the db pool to have 5 available connections. However, we also configure puma to spawn 2 workers with up to 16 threads each. It is possible that if hit with enough requests, puma can run out of connections, leading to errors like:

ActiveRecord::ConnectionTimeoutError: could not obtain a connection from the pool within 5.000 seconds (waited 5.003 seconds); all pooled connections were in use