Hadoop 系列YARN：資源調度平臺（YARN集羣配置）

YARN：資源調度平臺

 YARN集羣配置

 簡單配置

yarn-site.xml

<?xml version="1.0"?>
<!--
  Licensed under the Apache License, Version 2.0 (the "License");
  you may not use this file except in compliance with the License.
  You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

  Unless required by applicable law or agreed to in writing, software
  distributed under the License is distributed on an "AS IS" BASIS,
  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  See the License for the specific language governing permissions and
  limitations under the License. See accompanying LICENSE file.
-->
<configuration>

<!-- Site specific YARN configuration properties -->
       <property>
		<name>yarn.resourcemanger.hosrname></name>
		<value>node1</value>
		<description>ResourceManager全部節點</descripion> 
	<property>
		<name>yarn.nodemanager.aux-services</name>
		<value>mapreduce_shuffle</value>
		<description>排序服務</description>
	</property>
</configuration>

 mapred-site.xml

<?xml version="1.0"?>
<?xml-stylesheet type="text/xsl" href="configuration.xsl"?>
<!--
  Licensed under the Apache License, Version 2.0 (the "License");
  you may not use this file except in compliance with the License.
  You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

  Unless required by applicable law or agreed to in writing, software
  distributed under the License is distributed on an "AS IS" BASIS,
  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  See the License for the specific language governing permissions and
  limitations under the License. See accompanying LICENSE file.
-->

<!-- Put site-specific property overrides in this file. -->

<configuration>
	<property>
		<name>mapreduce.framework.name</name>
		<value>yarn</value>
		<description>啓動yarn做爲資源管理框架</description>	
	</property>
</configuration>

 slave

node1
node2
node3

 須要注意：這個文件是指定子節點的位置，同時也是幫助Yarn指定NodeManager啓動的位置。即若是HDFS沒有指定slaves的話，將沒有DataNode；若是Yarn沒有指定slaves的話，將沒有NodeManager。

優化配置

YARN參數調優

（1） yarn-site.xm

<?xml version="1.0"?>
<!--
  Licensed under the Apache License, Version 2.0 (the "License");
  you may not use this file except in compliance with the License.
  You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

  Unless required by applicable law or agreed to in writing, software
  distributed under the License is distributed on an "AS IS" BASIS,
  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  See the License for the specific language governing permissions and
  limitations under the License. See accompanying LICENSE file.
-->
<configuration>

<!-- Site specific YARN configuration properties -->
	 <property>
		 <name>yarn.resourcemanager.scheduler.class</name>
		 <value>org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityScheduler</value>
	 </property>
       <property>
		<name>yarn.resourcemanger.hosrname></name>
		<value>node1</value>
		<description>ResourceManager全部節點</description> 
	<property>
		<name>yarn.nodemanager.aux-services</name>
		<value>mapreduce_shuffle</value>
		<description>排序服務</description>
	</property>
	<property>
		 <name>yarn.resourcemanager.address</name>
		 <value>node1:8032</value>
		 <description>客戶端提交任務的ResourceManager的URI</description>
	 </property>
	 <property>
		 <name>yarn.nodemanager.resource.cpu-vcores</name>
		 <value>10</value>
	 </property>
	 <property>
		 <name>yarn.nodemanager.local-dirs</name>
		 <value>/hadoop/yarn/local</value>
	 </property>
	 <property>
		 <name>yarn.application.classpath</name>
		 <value>$HADOOP_CONF_DIR,$HADOOP_COMMON_HOME/*,$HADOOP_COMMON_HOME/lib/*,$HADOOP_HDFS_HOME/*,$HADOOP_HDFS_HOME/ib/*,$HADOOP_MAPRED_HOME/*,$HADOOP_MAPRED_HOME/lib/*,$YARN_HOME/*,$YARN_HOME/lib/*</value>
 	</property>
	 <property>
		 <name>yarn.nodemanager.pmem-check-enabled</name>
		 <value>false</value>
	 </property>
	 <property>
		 <name>yarn.resourcemanager.admin.address</name>
		 <value>node1:8033</value>
		 <description>管理命令的URI</description>
	 </property>
	 <property>
		 <name>yarn.nodemanager.remote-app-log-dir</name>
		 <value>/yarn1/var/log/hadoop-yarn/apps</value>
	 </property>
	 <property>
		 <name>yarn.resourcemanager.resource-tracker.address</name>
		 <value>node1:8031</value>
	 </property>
	 <property>
		 <name>yarn.scheduler.maximum-allocation-mb</name>
		 <value>27648</value>
	 </property>
	 <property>
		 <name>yarn.nodemanager.vmem-check-enabled</name>
		 <value>false</value>
	 </property>
	 <property>
		 <name>yarn.resourcemanager.webapp.address</name>
		 <value>node1:8088</value>
		 <description>ResourceManager的web服務URI</description>
	 </property>
	 <property>
		 <name>yarn.nodemanager.resource.memory-mb</name>
		 <value>27640</value>
	 </property>
	 <property>
		 <name>yarn.nodemanager.aux-services.mapreduce_shuffle.class</name>
		 <value>org.apache.hadoop.mapred.ShuffleHandler</value>
	 </property>
	 <property>
		 <name>yarn.log-aggregation-enable</name>
		 <value>true</value>
	 </property>
	 <property>
		 <name>yarn.scheduler.maximum-allocation-vcores</name>
		 <value>96</value>
	 </property>
	 <property>
		 <name>yarn.resourcemanager.scheduler.address</name>
		 <value>node1:8030</value>
	 </property>
	 <property>
		 <name>yarn.scheduler.minimum-allocation-mb</name>
		 <value>9216</value>
	 </property>
	 <property>
		 <name>yarn.nodemanager.log-dirs</name>
		 <value>/hadoop/yarn/logs</value>
	 </property>

</configuration>

 mapred-site.xml

<?xml version="1.0"?>
<?xml-stylesheet type="text/xsl" href="configuration.xsl"?>
<!--
  Licensed under the Apache License, Version 2.0 (the "License");
  you may not use this file except in compliance with the License.
  You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

  Unless required by applicable law or agreed to in writing, software
  distributed under the License is distributed on an "AS IS" BASIS,
  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  See the License for the specific language governing permissions and
  limitations under the License. See accompanying LICENSE file.
-->

<!-- Put site-specific property overrides in this file. -->

<configuration>
	<property>
		 <name>mapreduce.map.memory.mb</name>
		 <value>2048</value>
		 <description>map的最大可以使用內存</description>
	 </property>
	 <property>
		 <name>mapreduce.map.java.opts</name>
		 <value>-Xmx1228m</value>
		 <description>map的堆內存</description>
	 </property>
	 <property>
		 <name>mapreduce.reduce.memory.mb</name>
		 <value>3072</value>
		 <description>reduce的最大可以使用內存</description>
	 </property>
	 <property>
		 <name>mapreduce.reduce.java.opts</name>
		 <value>-Xmx2457m</value>
		 <description>reduce堆內存</description>
	 </property>
	 <property>
		 <name>yarn.app.mapreduce.am.command-opts</name>
		 <value>-Xmx2457m</value>
		 <description>mapreduce的參數</description>
	 </property>
	 <property>
		 <name>mapreduce.task.io.sort.mb</name>
		 <value>614</value>
		 <description>數據排序時的內存大小</description>
	 </property>

	<property>
		<name>mapreduce.framework.name</name>
		<value>yarn</value>
		<description>啓動yarn做爲資源管理框架</description>	
	</property>
</configuration>