hadoop学习笔记：yarn框架资源相关配置

<property>
<description>Amount of physical memory, in MB,that can be allocated for containers.</description>
<name>yarn.nodemanager.resource.memory-mb</name>
<value>8192</value>
</property>

<property>
<description>Whether physical memory limits will be enforced for containers.</description>
<name>yarn.nodemanager.pmem-check-enabled</name>
<value>true</value>
</property>
<property>
<description>Whether virtual memory limits will be enforced for containers.</description>
<name>yarn.nodemanager.vmem-check-enabled</name>
<value>true</value>
</property>

<property>
<description>Ratio between virtual memory to physical memory when setting memory limits for containers. Container allocations are expressed in terms of physical memory, and virtual memory usage is allowed to exceed this allocation by this ratio.
</description>
<name>yarn.nodemanager.vmem-pmem-ratio</name>
<value>2.1</value>
</property>

<property>
<description>The minimum allocation for every container request at the RM,in MBs. Memory requests lower than this will throw a InvalidResourceRequestException.</description>
<name>yarn.scheduler.minimum-allocation-mb</name>
<value>1024</value>
</property>

<property>
<description>The maximum allocation for every container request at the RM,in MBs. Memory requests higher than this will throw a InvalidResourceRequestException.</description>
<name>yarn.scheduler.maximum-allocation-mb</name>
<value>8192</value>
</property>