根据硬件配置后mapred-site.xml和yarn-site.xml

<configuration>
<property>
<name>mapreduce.framework.name</name>
<value>yarn</value>
</property>

<property>
<name>mapreduce.jobhistory.address</name>
<value>master:10020</value>
<description>MapReduce JobHistory Server IPC host:port</description>
</property>

<property>
<name>mapreduce.jobhistory.webapp.address</name>
<value>master:19888</value>
<description>MapReduce JobHistory Server Web UI host:port</description>

</property>
<property>
<name>mapred.child.java.opts</name>
<value>-Xmx3000m -Xmx3000m -XX:-UseGCOverheadLimit</value>
</property>

<property>
<name>mapreduce.reduce.memory.mb</name>
<value>4096</value>
</property>

<property>
<name>mapreduce.map.memory.mb</name>
<value>4096</value>

</property>
<property>
<name>mapreduce.task.timeout</name>
<value>600000</value>
</property>

</configuration>

<configuration>
<property>
<name>yarn.resourcemanager.hostname</name>
<value>master</value>
</property>

<property>
<description>The address of the applications manager interface in the RM.</description>
<name>yarn.resourcemanager.address</name>
<value>${yarn.resourcemanager.hostname}:8032</value>
</property>

<property>
<description>The address of the scheduler interface.</description>
<name>yarn.resourcemanager.scheduler.address</name>
<value>${yarn.resourcemanager.hostname}:8030</value>
</property>

<property>
<description>The http address of the RM web application.</description>
<name>yarn.resourcemanager.webapp.address</name>
<value>${yarn.resourcemanager.hostname}:8088</value>
</property>

<property>
<description>The https adddress of the RM web application.</description>
<name>yarn.resourcemanager.webapp.https.address</name>
<value>${yarn.resourcemanager.hostname}:8090</value>
</property>

<property>
<name>yarn.resourcemanager.resource-tracker.address</name>
<value>${yarn.resourcemanager.hostname}:8031</value>
</property>

<property>
<description>The address of the RM admin interface.</description>
<name>yarn.resourcemanager.admin.address</name>
<value>${yarn.resourcemanager.hostname}:8033</value>
</property>

<property>
<name>yarn.nodemanager.aux-services</name>
<value>mapreduce_shuffle</value>
</property>

<property>
<name>yarn.scheduler.maximum-allocation-mb</name>
<value>9216</value>
<discription>每个节点可用内存,单位MB,默认8182MB</discription>
</property>

<property>
<name>yarn.nodemanager.vmem-pmem-ratio</name>
<value>2.1</value>
</property>

<property>
<name>yarn.nodemanager.resource.memory-mb</name>
<value>10240</value>
</property>

</configuration>