【发布时间】:2023-04-04 19:58:01
【问题描述】:
我正在尝试向分区表中插入数据,但并未创建所有分区(仅创建空值和零值),请参见下文。
蜂巢>
select state_code,district_code,count(*) from marital_status group by state_code,district_code;
Total MapReduce jobs = 1
已启动 MapReduce 作业:
...
Job 0: Map: 1 Reduce: 1 Cumulative CPU: 3.49 sec HDFS Read: 193305 HDFS Write: 240 SUCCESS
Total MapReduce CPU Time Spent: 3 seconds 490 msec
OK
28 000 60
28 532 60
28 533 60
28 534 60
28 535 60
28 536 60
28 537 60
28 538 60
28 539 60
28 540 60
28 541 60
28 542 60
28 543 60
28 544 60
28 545 60
28 546 60
28 547 60
28 548 60
28 549 60
28 550 60
28 551 60
28 552 60
28 553 60
28 554 60
Time taken: 39.442 seconds, Fetched: 24 row(s)
我现在将此表数据插入到另一个分区代码分区的表中。
蜂巢>
insert overwrite table marital_status_part partition(DISTRICT_CODE) SELECT * FROM MARITAL_STATUS WHERE DISTRICT_CODE IN ('532','533','534');
Total MapReduce jobs = 3
Launching Job 1 out of 3
reduce 任务的数量设置为 0,因为没有 reduce 运算符
Starting Job = job_201507071409_0020, Tracking URL = http://localhost:50030/jobdetails.jsp?jobid=job_201507071409_0020
Kill Command = /home/chaitanya/hadoop-1.2.1/libexec/../bin/hadoop job -kill job_201507071409_0020
Stage-1 的 Hadoop 作业信息:映射器数量:1;减速机数量:
0
2015-07-07 16:35:38,180 Stage-1 map = 0%, reduce = 0%
2015-07-07 16:35:48,214 Stage-1 map = 100%, reduce = 0%, Cumulative CPU 2.01 sec
2015-07-07 16:35:49,217 Stage-1 map = 100%, reduce = 0%, Cumulative CPU 2.01 sec
2015-07-07 16:35:50,220 Stage-1 map = 100%, reduce = 0%, Cumulative CPU 2.01 sec
2015-07-07 16:35:51,222 Stage-1 map = 100%, reduce = 0%, Cumulative CPU 2.01 sec
2015-07-07 16:35:52,226 Stage-1 map = 100%, reduce = 0%, Cumulative CPU 2.01 sec
2015-07-07 16:35:53,234 Stage-1 map = 100%, reduce = 0%, Cumulative CPU 2.01 sec
2015-07-07 16:35:54,237 Stage-1 map = 100%, reduce = 100%, Cumulative CPU 2.01 sec
MapReduce Total cumulative CPU time: 2 seconds 10 msec
Ended Job = job_201507071409_0020
Stage-4 is selected by condition resolver.
Stage-3 is filtered out by condition resolver.
Stage-5 is filtered out by condition resolver.
Moving data to: hdfs://localhost:9000/tmp/hive-chaitanya/hive_2015-07-07_16-35-29_099_2560746659196071718-1/-ext-10000
Loading data to table default.marital_status_part partition (district_code=null)
Loading partition {district_code=0}
Partition default.marital_status_part{district_code=0} stats: [num_files: 1, num_rows: 0, total_size: 22882, raw_data_size: 0]
Table default.marital_status_part stats: [num_partitions: 1, num_files: 1, num_rows: 0, total_size: 22882, raw_data_size: 0]
MapReduce Jobs Launched:
Job 0: Map: 1 Cumulative CPU: 2.01 sec HDFS Read: 193305 HDFS Write: 22882 SUCCESS
Total MapReduce CPU Time Spent: 2 seconds 10 msec
OK
Time taken: 26.254 seconds
实际应该发生的是必须使用 532、533、534 创建三个文件夹,但只创建 2 个文件夹(NULL 和零)。你能帮我解决这个问题吗?
【问题讨论】:
标签: hadoop dynamic hive hdfs hiveql