spak on hive 资源占用

源文地址：http://www.cnblogs.com/linbingdong/p/5806329.html

在配置好的hive on spark 上同时开两个hive 有一个任务能正常执行，另外一个不能正常执行

情况是spark有别的application在运行，导致本次spark任务的等待或者失败 具体操作截图如下 

解决方式：在hadoop配置文件中设置yarn的并行度，在/etc/hadoop/conf/capacity-scheduler.xml文件中配置yarn.scheduler.capacity.maximum-am-resource-percent from 0.1 to 0.5

 <property>    <name>yarn.scheduler.capacity.maximum-am-resource-percent</name>    <value>0.5</value>    <description>      Maximum percent of resources in the cluster which can be used to run      application masters i.e. controls number of concurrent running      applications.    </description>  </property>