hive> select distinct s_id from score where c_id=01 and c_id=02
> ;
Automatically selecting local only mode for query
WARNING: Hive-on-MR is deprecated in Hive 2 and may not be available in the future versions. Consider using a different execution engine (i.e. spark, tez) or using Hive 1.X releases.
Query ID = hadoop00_20190711160119_64b8dbc4-8cd3-4a9f-bf19-638b9ae6c198
Total jobs = 1
Launching Job 1 out of 1
Number of reduce tasks not specified. Estimated from input data size: 1
In order to change the average load for a reducer (in bytes):
set hive.exec.reducers.bytes.per.reducer=
In order to limit the maximum number of reducers:
set hive.exec.reducers.max=
In order to set a constant number of reducers:
set mapreduce.job.reduces=
Job running in-process (local Hadoop)
2019-07-11 16:01:23,125 Stage-1 map = 0%, reduce = 0%
2019-07-11 16:01:25,129 Stage-1 map = 100%, reduce = 100%
Ended Job = job_local1844194359_0038
MapReduce Jobs Launched:
Stage-Stage-1: HDFS Read: 244198 HDFS Write: 218083 SUCCESS
Total MapReduce CPU Time Spent: 0 msec
OK
Time taken: 5.251 seconds
查询语句在使用mapreduce是,显示成功,但在终端不显示查询结果为什么?
- 写回答
- 好问题 0 提建议
- 追加酬金
- 关注问题
- 邀请回答
-
2条回答 默认 最新
悬赏问题
- ¥15 素材场景中光线烘焙后灯光失效
- ¥15 请教一下各位,为什么我这个没有实现模拟点击
- ¥15 执行 virtuoso 命令后,界面没有,cadence 启动不起来
- ¥50 comfyui下连接animatediff节点生成视频质量非常差的原因
- ¥20 有关区间dp的问题求解
- ¥15 多电路系统共用电源的串扰问题
- ¥15 slam rangenet++配置
- ¥15 有没有研究水声通信方面的帮我改俩matlab代码
- ¥15 ubuntu子系统密码忘记
- ¥15 保护模式-系统加载-段寄存器