YARN-HA configuration

1. Enter cd /root/software/hadoop/etc/hadoopinto the hadoop directory (three virtual machines operate at the same time)

2. Enter vi yarn-site.xmlinto the configuration file

Enter the following code block

<!--启用 resourcemanager ha-->
<property>
<name>yarn.resourcemanager.ha.enabled</name>
<value>true</value>
</property>
<!--声明两台 resourcemanager 的地址-->
<property>
<name>yarn.resourcemanager.cluster-id</name>
<value>cluster-yarn 1</value>
</property>
<property>
<name>yarn.resourcemanager.ha.rm-ids</name>
<value>rm1,rm2</value>
</property>
<property>
<name>yarn.resourcemanager.hostname.rm1</name>
<value>hadoop2</value>
</property>
<property>
<name>yarn.resourcemanager.hostname.rm2</name>
<value>hadoop100</value>
</property>
<!--指定 zookeeper 集群的地址-->
<property>
<name>yarn.resourcemanager.zk-address</name>
<value>hadoop2:2181,hadoop22:2181,hadoop100:2181</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>

3. Start yarn

Enter in hadoop2start-yarn.sh

Enter in hadoop100yarn-daemon.sh start resourcemanager

Check service statusyarn rmadmin -getServiceState rm1

Four. Verification

Type in the web page 192.168.83.2:8088and press Enter