python redis 轮询读取全部数据

应用场景:

需要读取redis中的全量数据,数据量过大,无法一次性读取

def get_device_type():
        snap_r = redis.Redis(host=self.snap_host,
                             password=self.snap_password,
                             db=self.snap_db,
                             port=self.snap_port)
        cursor, isNoe, device_type_msg = 1, True, {}
        while cursor != 0:
            if isNoe:
                cursor = 0
                isNoe = False
            #一次读取2000
            key = snap_r.scan(cursor, count=2000)
            if len(key[1]) == 0:
                pass
            else:
                lis = []
                for n in key[1]:
                    n = bytes.decode(n)
                    lis.append(n)
                cursor = key[0]
                value = snap_r.mget(lis)
                for d in value:
                    #逻辑处理
                    pass

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转载自blog.csdn.net/qq_40771567/article/details/108323509