yarn-HA(高可用)配置

在我上一篇文章中已经配置好了HDFS的高可用，接下来我们来配置yarn的高可用，其实很简单，只需要改一个yarn-site.xml配置文件即可（本文需要已经配好Hadoop集群 zookeeper集群，未配好请跳转我上一篇文章HDFS HAhttps://blog.csdn.net/qq_57193542/article/details/120535500）

yarn-site.xml配置如下

 
 
 yarn.nodemanager.aux-services
 mapreduce_shuffle
 
 

        
          yarn.resourcemanager.ha.enabled
          true
        
        
          yarn.resourcemanager.cluster-id
          cluster1
        
        
          yarn.resourcemanager.ha.rm-ids
        
          yarn.resourcemanager.hostname.rm1
          master
        
        
          yarn.resourcemanager.hostname.rm2
          slave1
        
        
          yarn.resourcemanager.webapp.address.rm1
          master:8088
        
        
          yarn.resourcemanager.webapp.address.rm2
          slave1:8088
        
        
          yarn.resourcemanager.zk-address
          master:2181,slave1:2181,slave2:2181
        
        
          yarn.resourcemanager.recovery.enabled
          true
        
        
          yarn.resourcemanager.store.class
 org.apache.hadoop.yarn.server.resourcemanager.recovery.ZKRMStateStore
        
 
 
 yarn.nodemanager.env-whitelist
JAVA_HOME,HADOOP_COMMON_HOME,HADOOP_HDFS_HOME,HADOOP_CONF_DIR,CLASSPATH_PREPEND_DISTCACHE,HADOOP_YARN_HOME,HADOOP_MAPRED_HOME
 

将yarn先停止

[root@slave1 .ssh]# stop-yarn.sh 

将配置分发给各个主机

[root@master bin]# xsync /opt/module/hadoop-3.1.3/etc/hadoop/yarn-site.xml 

重启yarn(在其中一台配置了 ResourceManager的主机启动即可)

 [root@master bin]# start-yarn.sh 

启动效果如下

这样我们的YARN-HA 就配置好了.