现在要做的就是添加apache ant的编译工具，不安装则会报错
Problem accessing /hwi/. Reason:
No Java compiler available
安装方法不做介绍了，网上很多。
安装完后需要设置path：
设置ANT_LIB路径
export ANT_LIB=/usr/lib/apache-ant-1.9.0/lib
，但是这个方法不好使，需要把
- ant-launcher.jar
- ant.jar
这两个jar包拷贝到$HIVE_HOME/lib下，才能使用。
cp opt/jdk/tools.jar /home/hadoop/hive/lib/
后台运行hwi：
$ nohup /home/work/hive/hive-0.8.1/bin/hive --service hwi &
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