问题如下：

17/10/26 16:33:46 WARN split.JobSplitWriter: Max block location exceeded for split: hdfs://youjun/input/file2:0+23 splitsize: 13 maxsize: 10

参考如下：

Issue: Max block location exceeded for split error when running hive

http://lucene.472066.n3.nabble.com/Issue-Max-block-location-exceeded-for-split-error-when-running-hive-td4090981.html

http://tangjunliang.iteye.com/blog/2013744

解决方案：

set mapreduce.job.max.split.locations to at least the number of datanodes in your cluster, either in hive-site.xml or mapred-site.xml

也即在mapred-site.xml中

Java代码   
<property>  
        <name>mapreduce.job.max.split.locations</name>  
        <value></value>  
</property>  

把这个值设置成你的datanodes数就行了。