hadoop-ResourceManager-HA配置

ResourceManager的HA它跟namenode的HA不通,没有namenode那么麻烦,它直接把ResourceManager的状态信息注册到zookeeper里面,如果直接访问standby的节点的时候,它会自动跳转到active的那台节点,当active节点宕机时, standby节点会自动变伪active

详细配置

<?xml version="1.0"?>
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-->
<configuration>

<!-- Site specific YARN configuration properties -->
<!-- reducer获取数据的方式 -->
    <property>
        <name>yarn.nodemanager.aux-services</name>
        <value>mapreduce_shuffle</value>
    </property>

<!-- 指定YARN的ResourceManager的地址 -->
	<!-- <property>
		<name>yarn.resourcemanager.hostname</name>
		<value>hadoop103</value>
	</property> -->
	
	<property>
        <name>yarn.log-aggregation-enable</name>
        <value>true</value>
    </property>

    <property> 
        <name>yarn.log.server.url</name> 
        <value>http://hadoop102:19888/jobhistory/logs/</value> 
    </property> 

    <property>
        <name>yarn.log-aggregation.retain-seconds</name>
        <value>86400</value>
    </property>

    <!--启用resourcemanager ha-->
    <property>
        <name>yarn.resourcemanager.ha.enabled</name>
        <value>true</value>
    </property>
 
    <!--声明两台resourcemanager的地址-->
	<!-- 给两台resourceManager起个名字 -->
    <property>
        <name>yarn.resourcemanager.cluster-id</name>
        <value>cluster-yarn1</value>
    </property>

    <property>
        <name>yarn.resourcemanager.ha.rm-ids</name>
        <value>rm1,rm2</value>
    </property>

    <property>
        <name>yarn.resourcemanager.hostname.rm1</name>
        <value>hadoop103</value>
    </property>

    <property>
        <name>yarn.resourcemanager.hostname.rm2</name>
        <value>hadoop104</value>
    </property>
 
    <!--指定zookeeper集群的地址--> 
    <property>
        <name>yarn.resourcemanager.zk-address</name>
        <value>hadoop102:2181,hadoop103:2181,hadoop104:2181</value>
    </property>

    <!--启用自动恢复--> 
    <property>
        <name>yarn.resourcemanager.recovery.enabled</name>
        <value>true</value>
    </property>
 
    <!--指定resourcemanager的状态信息存储在zookeeper集群--> 
    <property>
        <name>yarn.resourcemanager.store.class</name>     
		<value>org.apache.hadoop.yarn.server.resourcemanager.recovery.ZKRMStateStore</value>
    </property>



</configuration>