Hadoop Fully distributed mode
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Before Clone
[centos@localhost yum.repos.d]$ sudo nano /etc/hosts127.0.0.1 localhost 192.168.168.201 s201 192.168.168.202 s202 192.168.168.203 s203 192.168.168.204 s204
[centos@localhost ~]$ sudo nano /etc/hostname GNU nano 2.3.1 File: /etc/hostname 192.168.168.201 s201192.168.168.202 s202192.168.168.203 s203192.168.168.204 s204
Clone
编辑/etc/sysconfig/network-scripts/ifcfg-eno16777736
编辑/etc/hostname
重启网络服务
sudo service network restart
编辑/etc/resolv.conf
nameserver 192.168.168.2
[centos@s201 network-scripts]$ sudo nano /etc/resolv.conf
nameserver 192.168.168.2
Port
50070 namenode http port
50075 datanode http port
ssh
Delete all the files under .ssh/
[centos@s201 .ssh]$ rm -rf *
[centos@s201 .ssh]$ ssh-keygen[centos@s201 .ssh]$ cp id_rsa.pub authorized_keys[centos@s201 .ssh]$ scp authorized_keys centos@s202:~/.ssh/[centos@s201 .ssh]$ scp authorized_keys centos@s203:~/.ssh/[centos@s201 .ssh]$ scp authorized_keys centos@s204:~/.ssh/
change to @s202 window
[centos@s202 .ssh]$ ssh-keygen[centos@s202 .ssh]$ cat id_rsa.pub >> authorized_keys
Fully distributed mode
**core-site.xmlhdfs-site.xmlmapred-site.xml (cp Need)yarn-site.xml slaves**
[centos@s201 hadoop]$ sudo nano core-site.xml
<?xml version="1.0" encoding="UTF-8"?><?xml-stylesheet type="text/xsl" href="configuration.xsl"?><configuration> <property> <name>fs.defaultFS</name> <value>hdfs://s201/</value> </property> </configuration>
[centos@s201 hadoop]$ sudo nano hdfs-site.xml
<?xml version="1.0" encoding="UTF-8"?><?xml-stylesheet type="text/xsl" href="configuration.xsl"?><configuration> <property> <name>dfs.replication</name> <value>3</value> </property> </configuration>
[centos@s201 hadoop]$ cp mapred-site.xml.template mapred-site.xml[centos@s201 hadoop]$ sudo nano mapred-site.xml
<?xml version="1.0"?><configuration> <property> <name>mapreduce.framework.name</name> <value>yarn</value> </property> </configuration>
[centos@s201 hadoop]$ sudo nano yarn-site.xml
<?xml version="1.0"?><configuration> <property> <name>yarn.resourcemanager.hostname</name> <value>s201</value> </property> <property> <name>yarn.nodemanager.aux-services</name> <value>mapreduce_shuffle</value> </property> </configuration>
Change slaves
[centos@s201 hadoop]$ nano slaves
s202s203s204
JAVA_HOME
[centos@s201 hadoop]$ sudo nano hadoop-env.sh
export JAVA_HOME=/soft/jdk
分发配置
[centos@s201 etc]$ cd /soft/hadoop/etc/[centos@s201 etc]$ scp -r full centos@s202:/soft/hadoop/etc/[centos@s201 etc]$ scp -r full centos@s203:/soft/hadoop/etc/[centos@s201 etc]$ scp -r full centos@s204:/soft/hadoop/etc/
@s204 (all other three)
[centos@s204 etc]$ ln -s full hadoop
Delete /tmp and hadoop logs
[centos@s201 etc]$ cd /tmp[centos@s201 tmp]$ rm -rf hadoop-centos[centos@s201 tmp]$ ssh s202 rm -rf /tmp/hadoop-centos[centos@s201 tmp]$ ssh s203 rm -rf /tmp/hadoop-centos[centos@s201 tmp]$ ssh s204 rm -rf /tmp/hadoop-centos[centos@s201 hadoop]$ cd /soft/hadoop/logs[centos@s201 hadoop]$ rm -rf *[centos@s201 hadoop]$ ssh s202 rm -rf /soft/hadoop/logs/*[centos@s201 hadoop]$ ssh s203 rm -rf /soft/hadoop/logs/*[centos@s201 hadoop]$ ssh s204 rm -rf /soft/hadoop/logs/*
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