new

# File activerecord/lib/active_record/connection_adapters/abstract/connection_pool.rb, line 1008
      def initialize
        # These caches are keyed by spec.name (ConnectionSpecification#name).
        @owner_to_pool = ConnectionHandler.create_owner_to_pool

        # Backup finalizer: if the forked child never needed a pool, the above
        # early discard has not occurred
        ObjectSpace.define_finalizer self, ConnectionHandler.unowned_pool_finalizer(@owner_to_pool)
      end