1、 安装jdk1.6.0_26(安装java环境)
Scp /etc/profile (注释)newnodeip:/etc
2、 安装hadoop及hbase、zookeeper
Yum install hadoop-0.20
Yum install hadoop-0.20-tasktarek
Yum install hadoop-0.20-namenode
Yum install hadoop-0.20-datanode
Yum install hadoop-hbase
3|、从主节点拷贝配置文件到新加节点
Scp –r /etc/hadoop-0.20/conf newnodeip:/etc/hadoop-0.20
Scp –r /etc/hbase/conf newnodeip:/etc/hbase
Scp –r /etc/zookeeper/conf newnodeip:/etc/zookeeper
3、 设置用户最大打开的文件数量：
Vim /etc/security/limits.conf
hdfs - nofile 32768
hbase - nofile 32768
4、 在master主机上添加dns解析
Vim /var/named/hdfs.zone
$TTL 86400
@ IN SOA hdfs. root(
200101111
14400
3600
604800
86400)
master-hadoop IN A 192.168.5.249
slave1-hadoop IN A 192.168.5.201
hostname IN A newip(注释)
master-hbase IN A 192.168.5.249
slave1-hbase IN A 192.168.5.201
hostname IN A newip(注释)
@ IN NS ns.hdfs.
/etc/rc.d/init.d/named restart
6,本机设置dns
vi /etc/resolv.conf
earch hdfs
domain hdfs
nameserver 192.168.5.249
nameserver 202.106.0.20
~
7、主节点master主机添加从节点配置：
Vim /etc/hadoop-0.20/slaves
slave1-hadoop.hdfs
slave2-hadoop.hdfs
slave4-hadoop.hdfs
slave3-hadoop.hdfs
hostname(注释)
vim /etc/hbase/regionserver
slave1-hadoop.hdfs
slave2-hadoop.hdfs
slave4-hadoop.hdfs
slave3-hadoop.hdfs
hostname(注释)
8、配置免密码验证
Scp /home/hdfs/.ssh/* newip:/home/hdfs/.ssh
9、启动新加节点：
/usr/hahadoop-0.20/bin/daemon start datanode
/usr/hahadoop-0.20/bin/daemon start tasktracker
