* Check Data part */

NOTE(takenliu):net.Dial failed not mean port is usable.

[begin, end)

Our hash function is MurmurHash2, 64 bit version. * It was modified for Redis in order to provide the same result in * big and little endian archs (

changeReplSource should be called with LOCK_X held

* @brief check whether slot belong to this kvstore * @param kvstoreId kvstoreId which slots belong to * @param slot slot which need to check * @ret

if slot set successfully , return ture

Clear the slot bit and return the old value.

check clusterFalg to avoid doing some db job in mutex */

Clear the migrating / importing state for all the slots. * This is useful at initialization and when turning a master into slave. */