华为云数据湖探索(Data Lake Insight,DLI)支持()任务的作业管理。
A.Impala
B.SQL
C.Flink
D.Spark
A.Impala
B.SQL
C.Flink
D.Spark
A.可有效提升热点数据的访问速度
B.为应用系统提供Key-Value的数据缓存
C.可大幅降低数据库压力
D.可支持强一致性事务
A.Hive
B.SparkSQL
C.Spark
D.MapReduce
A.业务希望读不影响主实例,且无法接受数据短时间不一致时,配置只读实例均衡策略
B.业务读压力较大,且能接受数据短时间不一致时,配置读负载均衡策略
C.业务需要强一致性读时,配置全读主库策略
D.业务希望读压力较大时控制读主的比例,且能接受数据短时间不一致时,配置自定义读策略
A.No, ask someone else
B.No way
C.By all means
D.Why should I
Shorty, a man of forty, had gone into town. He had said he would be back before two. He had told Walt to watch the boats and the shop. There were no people around. They had all gone out on the lake to fish.
So Walt went to work on one of the boats. From there he could hear the telephone if it rang. And he could watch the door.
It was a little after two when the stranger came. Walt saw him stop by the shop. The stranger looked in for a minute. Then he went down to the boats. He was a big man in a coat.
Walt called to him, "Do you want something, sir?"
The stranger looked at Walt and said, "No, thanks." Then the stranger moved slowly away. As he went on, he looked at the boats one by one.
Walt sat there with his eyes on the back of the stranger's coat. He thought, "I can smell something as I smell that storm. I hope Shorty comes back soon."
The story happened ______.
A.on the lake at night
B.by the lake in the afternoon
C.along the river in spring
D.near the river in summer
A.水平扩容,DDM在不中断业务的情况下,支持新增RDS实例,水平扩容存储空间
B.数据分布式存储,DDM采用水平拆分方式,将数据记录数庞大的单个数据库按指定的规则拆分,分布式存储到各个分片中
C.读写分离,用户可以根据数据读取压力负载情况,为每个RDS实例配置一个或者多个只读实例,提高查询并发性能
D.高性能,DDM实例关联多个RDS节点,同时实现并行计算
A.古乐
B.骨笛
C.乐歌
D.耳鼓