Mapper Reducer在HIVE中没有从零增加选择查询

您好，我在一个与HBase表集成的HIVE中有32百万条记录。当我尝试做简单的选择查询，它给我下面的阅读。Mapper Reducer在HIVE中没有从零增加选择查询

INSERT OVERWRITE LOCAL DIRECTORY '/hadoop/user/Item.txt' 
ROW FORMAT DELIMITED 
FIELDS TERMINATED BY '\t' 
STORED AS TEXTFILE 
select * from hbase_table ; 

Hadoop job information for Stage-1: number of mappers: 1; number of reducers: 0 
2016-11-09 10:48:11,767 Stage-1 map = 0%, reduce = 0% 
2016-11-09 10:49:12,206 Stage-1 map = 0%, reduce = 0%, Cumulative CPU 51.67 sec 
2016-11-09 10:50:12,536 Stage-1 map = 0%, reduce = 0%, Cumulative CPU 101.52 sec 
2016-11-09 10:51:12,861 Stage-1 map = 0%, reduce = 0%, Cumulative CPU 124.31 sec 
2016-11-09 10:52:13,172 Stage-1 map = 0%, reduce = 0%, Cumulative CPU 144.26 sec 
2016-11-09 10:53:13,472 Stage-1 map = 0%, reduce = 0%, Cumulative CPU 163.76 sec

来源

2016-11-10 SUDARSHAN

尝试检查资源管理器UI有关此作业的状态。 – mrsrinivas

减少百分比将为零，因为映射器的输出将直接写入本地路径。

检查纱线Web UI以获取资源可用性。在蜂巢提示set mapreduce.job.maps = x; 然后运行上述命令

来源

2016-11-10 05:44:57

我已经设置了mapreduce.job.maps = 44; 但后来只有6个映射器运行并重复相同的事情2016-11-10 01：02：29,199阶段1映射= 0％，reduce = 0％2016-11-10 01：03：30,044阶段1映射= 0％，reduce = 0％，累计CPU 314.46秒 2016-11-10 01：04：30,585阶段1映射= 0％，减少= 0％，累计CPU 609.4秒 – SUDARSHAN

你可以分享纱网UI –

Mapper Reducer在HIVE中没有从零增加选择查询

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