1、集群规划部署
节点名称 | NN1 | NN2 | DN | RM | NM |
hadoop01 | NameNode | DataNode | NodeManager | ||
hadoop02 | SecondaryNameNode | DataNode | ResourceManager | NodeManager | |
hadoop03 | DataNode | NodeManager |
2、参考单机部署,拷贝安装目录至相同目录,使用ln -s 建立软连接
3、修改配置文件参数及sh启动文件--根据集群规划部署配置
slaves:记录了机器名
*.sh:修改JAVA_HOME
yarn-site.xml
yarn.nodemanager.aux-services mapreduce_shuffle yarn.resourcemanager.hostname hadoop02
hdfs-site.xml
dfs.replication 3 dfs.permissions false If "true", enable permission checking in HDFS. If "false", permission checking is turned off, but all other behavior is unchanged. Switching from one parameter value to the other does not change the mode, owner or group of files or directories. dfs.namenode.secondary.http-address hadoop02:50090
mapred-site.xml
mapreduce.framework.name yarn
core-site.xml
fs.defaultFS hdfs://hadoop01:9000 hadoop.tmp.dir /hadoop/tmp
4、由于是在单机基础上升级扩展,需要删除hadoop.tmp.dir目录文件,并用root授权 chmod 777 -R /hadoop
5、重新格式化:hdfs namenode -foamate
6、配置拷贝:scp -r /home/hadoop/Soft/hadoop-2.7.6/etc/hadoop hadoop@hadoop03:/home/hadoop/Soft/hadoop-2.7.6/etc/
7、Hadoop01:start-dfs.sh
8、Hadoop02:start-yarn.sh
10、使用jps查看进程
参考:
https://blog.csdn.net/frank409167848/article/details/80968531
https://www.cnblogs.com/frankdeng/p/9047698.html