来到这篇文章的同学,现在应该已经有了高可用模式的hadoop集群了,如果没有请参考我的另外一篇文章
(1条消息) Hadoop-HA模式的搭建(手把手教,超细)_迫壳的博客-CSDN博客https://blog.csdn.net/qq_56893858/article/details/121400388?spm=1001.2014.3001.5501
MapReduce On Yarn,借鉴官网搭建资源管理器HA_Hadoop 中文网https://hadoop.org.cn/docs/hadoop-yarn/hadoop-yarn-site/ResourceManagerHA.html
先说一下此篇文章各个节点的角色
RM NM
node01
node02 *
node03 * *
node04 * *
node01:
cd $HADOOP_HOME/etc/hadoop
cp mapred-site.xml.template mapred-site.xml
vi mapred-site.xml
mapreduce.framework.name yarn
vi yarn-site.xml
2.分发配置文件并启动yarn.nodemanager.aux-services mapreduce_shuffle yarn.resourcemanager.ha.enabled true yarn.resourcemanager.zk-address node02:2181,node03:2181,node04:2181 yarn.resourcemanager.cluster-id poke yarn.resourcemanager.ha.rm-ids rm1,rm2 yarn.resourcemanager.hostname.rm1 node03 yarn.resourcemanager.hostname.rm2 node04
scp mapred-site.xml yarn-site.xml node02:`pwd`
scp mapred-site.xml yarn-site.xml node03:`pwd`
scp mapred-site.xml yarn-site.xml node04:`pwd`
启动
node01:start-yarn.sh
node03~node04:yarn-daemon.sh start resourcemanager
3.测试访问
http://node03:8088/
完事,搭建成功!制作不易,点个赞吧,同学们!
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