1.修改主机名
hostname 主机名(实时生效、重启失效) /etc/sysconfig/network(永久生效、需要重启)
2.修改/ets/hosts
192.168.1.238 JZYH-COLLECTOR-LTEMR1-OSS 192.168.1.239 JZYH-COLLECTOR-LTEMR2-OSS 192.168.1.240 JZYH-COLLECTOR-SCHE1-OSS 192.168.1.241 JZYH-COLLECTOR-LTEMR3-OSS
3.修改配置文件
* hdfs * hadoop-env.sh * core-site.xml * hdfs-site.xml * slaves * yarn * yarn-env.sh * yarn-site.xml * slaves * mapredue * mapred-env.sh * mapred-site.xml
4.配置免登录(每台机器分别执行)
ssh-keygen -t rsa(四个回车) ssh-copy-id JZYH-COLLECTOR-LTEMR1-OSS ssh-copy-id JZYH-COLLECTOR-LTEMR2-OSS ssh-copy-id JZYH-COLLECTOR-SCHE1-OSS ssh-copy-id JZYH-COLLECTOR-LTEMR3-OSS 测试 ssh nwom@JZYH-COLLECTOR-LTEMR3-OSS
5.分发
scp -r ./hadoop-2.5.0/ nwom@JZYH-COLLECTOR-LTEMR1-OSS:/opt/nwom/hadoop scp -r ./hadoop-2.5.0/ nwom@JZYH-COLLECTOR-LTEMR2-OSS:/opt/nwom/hadoop scp -r ./hadoop-2.5.0/ nwom@JZYH-COLLECTOR-SCHE1-OSS:/opt/nwom/hadoop
6.启动集群
cd /opt/nwom/hadoop/hadoop-2.5.0/ bin/hdfs namenode -format(NameNode节点240) sbin/start-dfs.sh (NameNode节点240) http://192.168.1.240:50070 sbin/start-yarn.sh (Yarn节点238) http://192.168.1.238:8088 sbin/mr-jobhistory-daemon.sh start historyserver(240)