Function key_slot

redis/crc.py:12–23

Calculate key slot for a given key. See Keys distribution model in https://redis.io/topics/cluster-spec :param key - bytes :param bucket - int

(key: EncodedT, bucket: int = REDIS_CLUSTER_HASH_SLOTS)

def key_slot(key: EncodedT, bucket: int = REDIS_CLUSTER_HASH_SLOTS) -> int:
    """Calculate key slot for a given key.
    See Keys distribution model in https://redis.io/topics/cluster-spec
    :param key - bytes
    :param bucket - int
    """
    start = key.find(b"{")
    if start > -1:
        end = key.find(b"}", start + 1)
        if end > -1 and end != start + 1:
            key = key[start + 1 : end]
    return crc_hqx(key, 0) % bucket