运行Tez出现下面错误：

Caused by: org.apache.tez.dag.api.SessionNotRunning: TezSeeion has already shutdown.Application application_15xxxx  failed 2 times due to AM Container for appattempt_xxx exited with exitCode: -103 For more detailed output,check application tracking page:http://hadoop1:8088/cluster/app/application_15xxxThen,click on links to logs of each attempt.

产生原因：

这是由于Container使用过多内存而被NodeManager杀死进程

解决方法：

修改Hadoop的配置文件yarn-site.xml，增加如下配置，关掉虚拟内存检查，修改后，分发配置文件，并重启集群。

<property>
   <name>yarn.nodemanager.vmem-check-enabled</name>
   <value>false</value>
</property>