FAILED Execution Error, return code 2 from org

FAILED: Execution Error, return code 2 from org.apache.hadoop.hive.ql.exec.mr.MapRedTask

解决方案①:

hdfs dfsadmin -safemode leave

解决方案②：

set hive.exec.mode.local.auto=true;

以上的方法，我用了后成功之后，运行其他的任务又报同样的错误了。无解，上http://hadoop102:19888/jobhistory查看历史任务，查找最终原因！！！

beyond the ‘VIRTUAL’ memory limit

大致意思是从机上运行的Container试图使用更多的内存，而被NodeManager给kill掉了,OK,既然知道原因，就对症下药

解决方案③：

修改mapred-site.xml文件：添加以下配置

<property><name>mapreduce.map.memory.mb</name><value>1536</value>
</property>
<property><name>mapreduce.map.java.opts</name><value>-Xmx1024M</value>
</property>
<property><name>mapreduce.reduce.memory.mb</name><value>3072</value>
</property>
<property><name>mapreduce.reduce.java.opts</name><value>-Xmx2560M</value>
</property>

在重启服务器集群，即可解决

参考链接：

https://stackoverflow.com/questions/21005643/container-is-running-beyond-memory-limits

https://blog.csdn.net/cao1315020626/article/details/101712223

/blog.csdn.net/cao1315020626/article/details/101712223

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