Hadoop 对于一些蜂巢查询，我没有'；你看不到订单吗？

我的问题是

SELECT txnno, product FROM txnrecsbycat TABLESAMPLE(BUCKET 2 OUT OF 10) ORDER BY txnno;

我正在获得成功，但无法查看我的O/p 我的o/p是：

职位总数=1 正在启动作业1/1 编译时确定的reduce任务数：1 要更改减速器的平均负载（以字节为单位）：

设置hive.exec.reducers.bytes.per.reducer=

为了限制减速器的最大数量：

  set hive.exec.reducers.max=<number>

  set mapreduce.job.reduces=<number>

Starting Job = job_1500975292039_0005, Tracking URL = http://localhost:8088/proxy/application_1500975292039_0005/
Kill Command = /usr/lib/hadoop-2.2.0/bin/hadoop job  -kill job_1500975292039_0005
Hadoop job information for Stage-1: number of mappers: 1; number of reducers: 1
2017-07-25 20:26:48,640 Stage-1 map = 0%,  reduce = 0%
2017-07-25 20:27:05,179 Stage-1 map = 100%,  reduce = 0%, Cumulative CPU 3.61 sec
2017-07-25 20:27:20,461 Stage-1 map = 100%,  reduce = 100%, Cumulative CPU 5.47 sec
MapReduce Total cumulative CPU time: 5 seconds 470 msec
Ended Job = job_1500975292039_0005
MapReduce Jobs Launched:
Job 0: Map: 1  Reduce: 1   Cumulative CPU: 5.47 sec   HDFS Read: 2498 HDFS Write: 0 SUCCESS
Total MapReduce CPU Time Spent: 5 seconds 470 msec
OK
Time taken: 51.819 seconds

设置hive.exec.reducers.max=

为了设置恒定数量的减速器：

  set hive.exec.reducers.max=<number>

  set mapreduce.job.reduces=<number>

Starting Job = job_1500975292039_0005, Tracking URL = http://localhost:8088/proxy/application_1500975292039_0005/
Kill Command = /usr/lib/hadoop-2.2.0/bin/hadoop job  -kill job_1500975292039_0005
Hadoop job information for Stage-1: number of mappers: 1; number of reducers: 1
2017-07-25 20:26:48,640 Stage-1 map = 0%,  reduce = 0%
2017-07-25 20:27:05,179 Stage-1 map = 100%,  reduce = 0%, Cumulative CPU 3.61 sec
2017-07-25 20:27:20,461 Stage-1 map = 100%,  reduce = 100%, Cumulative CPU 5.47 sec
MapReduce Total cumulative CPU time: 5 seconds 470 msec
Ended Job = job_1500975292039_0005
MapReduce Jobs Launched:
Job 0: Map: 1  Reduce: 1   Cumulative CPU: 5.47 sec   HDFS Read: 2498 HDFS Write: 0 SUCCESS
Total MapReduce CPU Time Spent: 5 seconds 470 msec
OK
Time taken: 51.819 seconds

设置mapreduce.job.reduces=
开始作业=作业\u 1500975292039\u 0005，跟踪URL=http://localhost:8088/proxy/application_1500975292039_0005/
Kill命令=/usr/lib/hadoop-2.2.0/bin/hadoop作业-Kill作业
阶段1的Hadoop作业信息：映射者数量：1；减速器数量：1
2017-07-25 20:26:48640第一阶段地图=0%，减少=0%
2017-07-25 20:27:05179第一阶段map=100%，reduce=0%，累计CPU 3.61秒
2017-07-25 20:27:20461第一阶段map=100%，reduce=100%，累计CPU 5.47秒
MapReduce总累计CPU时间：5秒470毫秒
结束作业=作业1500975292039\u 0005
推出MapReduce作业：
作业0:映射：1减少：1累计CPU：5.47秒HDFS读取：2498 HDFS写入：0成功
总MapReduce CPU时间：5秒470毫秒
好啊
所用时间：51.819秒

由于输出中有OK（在结果之前），这意味着此查询没有返回任何内容。检查BUCKET数据。

在查询中，一切看起来都很好。

是否选择txnno，txnrecsbycat limit 10中的产品是否返回任何内容？