hive 插入数据的时候，不能直接运行，报错
Error during job, obtaining debugging information...
FAILED: Execution Error, return code 2 from org.apache.hadoop.hive.ql.exec.mr.MapRedTask
错误原因：
namenode内存空间不够，JVM剩余内存空间不够新job运行所致
错误提示
Starting Job = job_1594085668614_0006, Tracking URL = http://kudu:8088/proxy/application_1594085668614_0006/
Kill Command = /root/soft/hadoop-3.2.1/bin/mapred job -kill job_1594085668614_0006
Hadoop job information for Stage-1: number of mappers: 0; number of reducers: 0
2020-07-07 09:43:24,559 Stage-1 map = 0%, reduce = 0%
Ended Job = job_1594085668614_0006 with errors
Error during job, obtaining debugging information…
FAILED: Execution Error, return code 2 from org.apache.hadoop.hive.ql.exec.mr.MapRedTask
MapReduce Jobs Launched:
Stage-Stage-1: HDFS Read: 0 HDFS Write: 0 FAIL
Total MapReduce CPU Time Spent: 0 msec
1
解决办法：
在hive> 下，输入
set hive.exec.mode.local.auto=true;
Original: https://blog.csdn.net/m0_62783212/article/details/126325650
Author: mazankang
Title: hive 插入数据，insert后报错 FAILED: Execution Error, return code 2 from org.apache.hadoop.hive.ql.exec.mr.Ma
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