YARN HA 配置文件设置

Hadoop 2.7.4 + HBase 1.2.6 + ZooKeeper 3.4.10 配置

本文为上述配置的一部分，为方便阅读，故设为独立页面

参考：http://hadoop.apache.org/docs/current/hadoop-yarn/hadoop-yarn-site/ResourceManagerHA.html

 

1：配置

首先创建local临时目录：/home/mytestzk/hadoop-2.7.4/tmp/yarn

• yarn-site.xml

特别注意：对以下节点yarn.resourcemanager.ha.id，需要在每个ResourceManager上修改对应的值，但在其它机器上不需要此节点，比如在master机器上设置为rm1， 在slave1机器上设置为rm2

<configuration>
    <!-- Site specific YARN configuration properties -->
    <property>
        <name>yarn.nodemanager.aux-services</name>
        <value>mapreduce_shuffle</value>
    </property>
    <property>
        <name>yarn.nodemanager.aux-services.mapreduce.shuffle.class</name>
        <value>org.apache.hadoop.mapred.ShuffleHandler</value>
    </property>

    <!--rm失联后重新链接的时间-->
    <property>
        <name>yarn.resourcemanager.connect.retry-interval.ms</name>
        <value>2000</value>
    </property>
    <!--开启resourcemanagerHA,默认为false-->
    <property>
        <name>yarn.resourcemanager.ha.enabled</name>
        <value>true</value>
    </property>

    <!--配置resourcemanager-->
    <property>
        <name>yarn.resourcemanager.ha.rm-ids</name>
        <value>rm1,rm2</value>
    </property>
    <property>
        <name>ha.zookeeper.quorum</name>
        <value>master:2181,slave1:2181,slave2:2181</value>
    </property>

    <!--开启故障自动切换-->
    <property>
        <name>yarn.resourcemanager.ha.automatic-failover.enabled</name>
        <value>true</value>
    </property>
    <property>
        <name>yarn.resourcemanager.hostname.rm1</name>
        <value>master</value>
    </property>
    <property>
        <name>yarn.resourcemanager.hostname.rm2</name>
        <value>slave1</value>
    </property>

    <!--在master上配置rm1,在slave1上配置rm2, slave节点不用配这个属性-->
    <property>
        <name>yarn.resourcemanager.ha.id</name>
        <value>rm1</value>
        <description>If we want to launch more than one RM in single node,we need this configuration</description>
    </property>

    <!--开启自动恢复功能-->
    <property>
        <name>yarn.resourcemanager.recovery.enabled</name>
        <value>true</value>
    </property>

    <!--配置与zookeeper的连接地址-->
    <property>
        <name>yarn.resourcemanager.zk-state-store.address</name>
        <value>master:2181,slave1:2181,slave2:2181</value>
    </property>
    <property>
        <name>yarn.resourcemanager.store.class</name>
        <value>org.apache.hadoop.yarn.server.resourcemanager.recovery.ZKRMStateStore</value>
    </property>
    <property>
        <name>yarn.resourcemanager.zk-address</name>
        <value>master:2181,slave1:2181,slave2:2181</value>
    </property>
    <property>
        <name>yarn.resourcemanager.cluster-id</name>
        <value>appcluster-yarn</value>
    </property>

    <!--schelduler失联等待连接时间-->
    <property>
        <name>yarn.app.mapreduce.am.scheduler.connection.wait.interval-ms</name>
        <value>5000</value>
    </property>

    <!--配置rm1-->
    <property>
        <name>yarn.resourcemanager.scheduler.address.rm1</name>
        <value>master:8030</value>
    </property>
    <property>
        <name>yarn.resourcemanager.resource-tracker.address.rm1</name>
        <value>master:8031</value>
    </property>
    <property>
        <name>yarn.resourcemanager.address.rm1</name>
        <value>master:8032</value>
    </property>
    <property>
        <name>yarn.resourcemanager.admin.address.rm1</name>
        <value>master:8033</value>
    </property>
    <property>
        <name>yarn.resourcemanager.webapp.address.rm1</name>
        <value>master:8088</value>
    </property>
    <property>
        <name>yarn.resourcemanager.ha.admin.address.rm1</name>
        <value>master:23142</value>
    </property>
    
    <!--配置rm2-->
    <property>
        <name>yarn.resourcemanager.scheduler.address.rm2</name>
        <value>slave1:8030</value>
    </property>
    <property>
        <name>yarn.resourcemanager.resource-tracker.address.rm2</name>
        <value>slave1:8031</value>
    </property>
    <property>
        <name>yarn.resourcemanager.address.rm2</name>
        <value>slave1:8032</value>
    </property>
    <property>
        <name>yarn.resourcemanager.admin.address.rm2</name>
        <value>slave1:8033</value>
    </property>
    <property>
        <name>yarn.resourcemanager.webapp.address.rm2</name>
        <value>slave1:8088</value>
    </property>
    <property>
        <name>yarn.resourcemanager.ha.admin.address.rm2</name>
        <value>slave1:23142</value>
    </property>

    <!--nodemanager 配置-->
    <property>
        <name>yarn.nodemanager.local-dirs</name>
        <value>/home/mytestzk/hadoop-2.7.4/tmp/yarn</value>
    </property>
    <property>
        <name>yarn.nodemanager.log-dirs</name>
        <value>/home/mytestzk/hadoop-2.7.4/log</value>
    </property>
    <property>
        <name>mapreduce.shuffle.port</name>
        <value>23080</value>
    </property>

    <!--故障处理类-->
    <property>
        <name>yarn.client.failover-proxy-provider</name>
        <value>org.apache.hadoop.yarn.client.ConfiguredRMFailoverProxyProvider</value>
    </property>
    <property>
        <name>yarn.resourcemanager.ha.automatic-failover.zk-base-path</name>
        <value>/yarn-leader-election</value>
        <description>Optionalsetting.Thedefaultvalueis/yarn-leader-election</description>
    </property>
</configuration>

2：启动YARN

正常启动HDFS后，因为配置了master及slave

为ResourceManager，所以需要分别在master 及 slave1上执行命令（注：需要在每个ResourceManager上执行启动命令）:

sbin/start-yarn.sh

3：查看状态：

从命令行查看状态：bin/yarn rmadmin -getServiceState rm1

或在浏览器中查看：master:8088, 及slave1:8088

4： 验证HA

将active的resourcemanager 进程杀掉 kill -9 {进程id}，然后再查看yarn状态变化，可以原来的standby将变为active

 

5：HDFS HA 及YARN HA 命令总结

	在每个zookeeper server	HDFS HA 在任一个NameNode	YARN HA 在每个ResourceManager
启动	bin/zkServer.sh start	sbin/start-dfs.sh	sbin/start-yarn.sh
停止	bin/zkServer.sh stop	sbin/stop-dfs.sh	sbin/stop-yarn.sh
查看状态	bin/zkServer.sh status		bin/yarn rmadmin -getServiceState rm1
		master:50070	master:8088
		slave1:50070	slave1:8088