修改yarn-site下的
<!--NodeManager-->
<property>
<name>yarn.nodemanager.resource.memory-mb</name>
<value>12288</value>
<description>Physical memory, in MB, to be made available to running
containers
</description>
</property>
<property>
<name>yarn.nodemanager.resource.cpu-vcores</name>
<value>4</value>
<description>Number of CPU cores that can be allocated for containers.</description>
</property>
<!--AppManager default driver mb-->