instance method reconnect!

# File activerecord/lib/active_record/connection_adapters/abstract_adapter.rb, line 711
      def reconnect!(restore_transactions: false)
        retries_available = connection_retries
        deadline = retry_deadline && Process.clock_gettime(Process::CLOCK_MONOTONIC) + retry_deadline

        @lock.synchronize do
          attempt_configure_connection do
            @allow_preconnect = false

            reconnect

            enable_lazy_transactions!
            @raw_connection_dirty = false
            @last_activity = @connected_since = Process.clock_gettime(Process::CLOCK_MONOTONIC)
            @verified = true
            @allow_preconnect = true

            reset_transaction(restore: restore_transactions) do
              clear_cache!(new_connection: true)
              configure_connection
            end
          rescue => original_exception
            translated_exception = translate_exception_class(original_exception, nil, nil)
            retry_deadline_exceeded = deadline && deadline < Process.clock_gettime(Process::CLOCK_MONOTONIC)

            if !retry_deadline_exceeded && retries_available > 0
              retries_available -= 1

              if retryable_connection_error?(translated_exception)
                backoff(connection_retries - retries_available)
                retry
              end
            end

            raise translated_exception
          end
        end
      end