yarn-site.xml

<!-- Site specific YARN configuration properties -->
<!--指明在执行mapreduce的时候使用shuffle-->
<property>
<name>yarn.nodemanager.aux-services</name>
<value>mapreduce_shuffle</value>
</property>
<!--指定yarn的管理者resourcemanager在哪里-->
<property>
<name>yarn.sourcemanager.hostname</name>
<value>hadoop-senior.liubin1.com</value>
</property>
<!--日志聚合-->
<property>
<!--开启日志聚合-->
<name>yarn.log-aggregation-enable</name>
<value>true</value>
</property>
<property>
<!--设置日志保存时间-->
<name>yarn.log-aggregation.retain-seconds</name>
<value>86400</value>
</property>