java.lang.IllegalStateException: Invalid shuffle port number -1 returned for attempt_1377744323071_0

java.lang.IllegalStateException: Invalid shuffle port number -1 returned for attempt_1377744323071_0001_m_000000_2

解决：在网上查了一下，这个yarn调试问题，在 yarn-site.xml文件中添加一下配置：

    yarn.nodemanager.aux-services
    mapreduce.shuffle

停掉hadoop所有服务，

hadoop@ubuntu:/usr/local/hadoop/sbin$ ./stop-all.sh

然后重启，ok

hadoop@ubuntu:/usr/local/hadoop/sbin$ ./start-all.sh