return
					}
				}
			}

			select {
			case <-retryTicker.C:
			case <-doneCh:
				return
			}
		}
	}()

	return keyCh
}

// sendItems - Reads items from the store and re-plays.
func sendItems(target Target, keyCh <-chan Key, doneCh <-chan struct{}, logger logger) {
	retryTicker := time.NewTicker(retryInterval)
	defer retryTicker.Stop()

	send := func(key Key) bool {
		for {