hadoop2安装文档安装jdk每台机器都安装安装ssh每台机器都安装安装zookeeper随便找奇数台机器上安装。我的是在：master1ha:2181,master2:2181,master2ha:2181配置host、机器规划机器规划：master1:192.168.0.201(activenamenode,RM)master1-ha:192.168.0.202(standbynamenode，jn,zk)master2:192.168.0.203(activenamenode,jn,RM,zk)master2-ha:192.168.0.204(standbynamenode，jn，zk)h2slave1:192.168.0.205(datanode,nodemanager)h2slave2:192.168.0.206(datanode,nodemanager)h2slave3:192.168.0.207(datanode,nodemanager)配置hosts192.168.0.201master1192.168.0.202master1ha192.168.0.203master2192.168.0.204master2ha192.168.0.205slave1192.168.0.206slave2192.168.0.207slave3安装hadoop2上传用工具上传hadoop2安装文件或者命令su–hadoopcd/home/hadooprz-y解压tar-zxvfhadoop-2.6.0.tar.gz重命名mvhadoop-2.2.0hadoop配置环境变量su–rootvi/etc/profile添加配置exportHADOOP_HOME=/home/hadoop/hadoopexportPATH=$PATH:$HADOOP_HOME/sbinsource/etc/peofilesu-hadoop配置hadoop2配置文件将配置文件上传到/home/hadoop/hadoop/etc/hadoop下core-site.xml<?xmlversion="1.0"encoding="UTF-8"?><?xml-stylesheettype="text/xsl"href="configuration.xsl"?><configuration><!--federation的配置，相当于视图--><property><name>fs.defaultFS</name><value>viewfs:///</value></property><!--第一套namenode集群--><property><name>fs.viewfs.mounttable.default.link./tmp</name><value>hdfs://hadoop-cluster1/tmp</value></property><!--第二套namenode集群--><property><name>fs.viewfs.mounttable.default.link./tmp1</name><value>hdfs://hadoop-cluster2/tmp1</value></property></configuration>hdfs-site.xml<?xmlversion="1.0"encoding="UTF-8"?><?xml-stylesheettype="text/xsl"href="configuration.xsl"?><configuration><!--两套namenode集群的名字--><property><name>dfs.nameservices</name><value>hadoop-cluster1,hadoop-cluster2</value></property><!--第一套nemenode集群的两台机器--><property><name>dfs.ha.namenodes.hadoop-cluster1</name><value>nn1,nn2</value></property><!--第一套namenode的主的数据传输地址--><property><name>dfs.namenode.rpc-address.hadoop-cluster1.nn1</name><value>master1:9000</value></property><!--第一套namenode的备的数据传输地址--><property><name>dfs.namenode.