【实验】Hadoop2.6.0的伪分布安装
hadoop-2.6.0.tar.gz:
http://apache.fayea.com/hadoop/common/hadoop-2.6.0/hadoop-2.6.0.tar.gz
jdk-7u79-linux-x64.gz: http://www.oracle.com/technetwork/java/javase/downloads/jdk7-downloads-1880260.html
1 设置ip地址
执行命令 service network restart
验证: ifconfig
2 关闭防火墙
执行命令 service iptables stop
验证: service iptables status
3 关闭防火墙的自动运行
执行命令 chkconfig iptables off
验证: chkconfig --list | grep iptables
4 设置主机名
执行命令
(1)hostname hadoop1
(2)vi /etc/sysconfig/network
NETWORKING=yes
NETWORKING_IPV6=yes
HOSTNAME=hadoop1
5 ip与hostname绑定
执行命令 (1)vi /etc/hosts
192.168.23.131 hadoop1.localdomain hadoop1
验证: ping hadoop1
6 设置ssh免密码登陆
执行命令
(1)ssh-keygen -t rsa
(2)cp ~/.ssh/id_rsa.pub ~/.ssh/authorized_keys
验证：
[root@test1 ~]# ssh hadoop1
The authenticity of host 'hadoop1 (192.168.23.131)' can't be established.
RSA key fingerprint is e9:9f:f2:ea:f2:aa:47:58:5f:12:ea:3c:50:3f:0d:1b.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added 'hadoop1,192.168.23.131' (RSA) to the list of known hosts.
Last login: Thu Feb 11 20:54:11 2016 from 192.168.23.1
[root@hadoop1 ~]# ssh hadoop1
Last login: Thu Feb 11 20:57:56 2016 from hadoop1.localdomain
7 安装jdk http://my.oschina.net/gaowm/blog/275184
(1)执行命令
(2)vi /etc/profile 增加内容如下:
export JAVA_HOME=/usr/share/java/jdk1.7.0_79
export PATH=.:$JAVA_HOME/bin:$PATH
(3)source /etc/profile
验证: java -version
8 安装hadoop
(1)执行命令
(2)vi /etc/profile 增加内容如下:
export JAVA_HOME=/usr/share/java/jdk1.7.0_79
export HADOOP_HOME=/usr/local/hadoop
export PATH=.:$HADOOP_HOME/bin:$JAVA_HOME/bin:$PATH
(3)source /etc/profile
(4)修改/usr/local/hadoop/etc/hadoop目录下的配置文件hadoop-env.sh、core-site.xml、hdfs-site.xml、mapred-site.xml
(5)hadoop namenode -format
(6)start-all.sh
验证: (1)执行命令jps 如果看到5个新的java进程，分别是NameNode、SecondaryNameNode、DataNode、ResourceManager、NodeManager
(2)在浏览器查看
hadoop web控制台页面的端口整理：
50070：hdfs文件管理 http://192.168.23.131:50070
8088：ResourceManager http://192.168.23.131:8088
8042：NodeManager http://192.168.23.131:8042
9 启动时没有NameNode的可能原因:
(1)没有格式化
(2)环境变量设置错误
(3)ip与hostname绑定失败
参考:
http://stark-summer.iteye.com/blog/2184123
http://www.aboutyun.com/thread-7513-1-1.html
jdk-7u79-linux-x64.gz: http://www.oracle.com/technetwork/java/javase/downloads/jdk7-downloads-1880260.html
1 设置ip地址
点击(此处)折叠或打开
- [root@test1 ~]# vi /etc/sysconfig/network-scripts/ifcfg-eth0
- # Intel Corporation 82545EM Gigabit Ethernet Controller (Copper)
- DEVICE=eth0
- BOOTPROTO=none
- ONBOOT=yes
- HWADDR=00:0c:29:51:cc:37
- TYPE=Ethernet
- NETMASK=255.255.255.0
- IPADDR=192.168.23.131
- GATEWAY=192.168.23.1
- USERCTL=no
- IPV6INIT=no
- PEERDNS=yes
验证: ifconfig
2 关闭防火墙
执行命令 service iptables stop
验证: service iptables status
3 关闭防火墙的自动运行
执行命令 chkconfig iptables off
验证: chkconfig --list | grep iptables
4 设置主机名
执行命令
(1)hostname hadoop1
(2)vi /etc/sysconfig/network
NETWORKING=yes
NETWORKING_IPV6=yes
HOSTNAME=hadoop1
5 ip与hostname绑定
执行命令 (1)vi /etc/hosts
192.168.23.131 hadoop1.localdomain hadoop1
验证: ping hadoop1
6 设置ssh免密码登陆
执行命令
(1)ssh-keygen -t rsa
(2)cp ~/.ssh/id_rsa.pub ~/.ssh/authorized_keys
验证：
[root@test1 ~]# ssh hadoop1
The authenticity of host 'hadoop1 (192.168.23.131)' can't be established.
RSA key fingerprint is e9:9f:f2:ea:f2:aa:47:58:5f:12:ea:3c:50:3f:0d:1b.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added 'hadoop1,192.168.23.131' (RSA) to the list of known hosts.
Last login: Thu Feb 11 20:54:11 2016 from 192.168.23.1
[root@hadoop1 ~]# ssh hadoop1
Last login: Thu Feb 11 20:57:56 2016 from hadoop1.localdomain
7 安装jdk http://my.oschina.net/gaowm/blog/275184
(1)执行命令
点击(此处)折叠或打开
- [root@hadoop1 java]# cd /usr/share/java
- [root@hadoop1 java]# cd
- [root@hadoop1 ~]# cd /usr/share/java
- [root@hadoop1 java]# cp /tmp/jdk-7u79-linux-x64.gz ./
- [root@hadoop1 java]# tar -xzvf jdk-7u79-linux-x64.gz
export JAVA_HOME=/usr/share/java/jdk1.7.0_79
export PATH=.:$JAVA_HOME/bin:$PATH
(3)source /etc/profile
验证: java -version
8 安装hadoop
(1)执行命令
点击(此处)折叠或打开
- [root@hadoop1 ~]# cd /usr/local/
- [root@hadoop1 local]# cp /tmp/hadoop-2.6.0.tar.gz ./
- [root@hadoop1 local]# tar -zxvf hadoop-2.6.0.tar.gz
- [root@hadoop1 local]# mv hadoop-2.6.0 hadoop
export JAVA_HOME=/usr/share/java/jdk1.7.0_79
export HADOOP_HOME=/usr/local/hadoop
export PATH=.:$HADOOP_HOME/bin:$JAVA_HOME/bin:$PATH
(3)source /etc/profile
(4)修改/usr/local/hadoop/etc/hadoop目录下的配置文件hadoop-env.sh、core-site.xml、hdfs-site.xml、mapred-site.xml
点击(此处)折叠或打开
- [root@hadoop1 hadoop]# vi hadoop-env.sh
- export JAVA_HOME=/usr/share/java/jdk1.7.0_79
-
- [root@hadoop1 hadoop]# vi core-site.xml
- <configuration>
- <property>
- <name>fs.default.name</name>
- <value>hdfs://hadoop1:9000</value>
- </property>
- <property>
- <name>hadoop.tmp.dir</name>
- <value>/usr/local/hadoop/tmp</value>
- </property>
-
- </configuration>
-
-
- [root@hadoop1 hadoop]# vi hdfs-site.xml
-
- <configuration>
- <property>
- <name>dfs.replication</name>
- <value>1</value>
- </property>
- <property>
- <name>dfs.permissions</name>
- <value>false</value>
- </property>
-
- </configuration>
- ~
-
- [root@hadoop1 hadoop]# cp mapred-site.xml.template mapred-site.xml
- [root@hadoop1 hadoop]# vi mapred-site.xml
- <configuration>
- <property>
- <name>mapred.job.tracker</name>
- <value>hadoop1:9001</value>
- </property>
-
- </configuration>
(5)hadoop namenode -format
(6)start-all.sh
点击(此处)折叠或打开
- [root@hadoop1 hadoop]# cd sbin
- [root@hadoop1 sbin]# start-all.sh
- This script is Deprecated. Instead use start-dfs.sh and start-yarn.sh
- 16/02/11 21:40:54 WARN util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable
- Starting namenodes on [hadoop1]
- hadoop1: starting namenode, logging to /usr/local/hadoop/logs/hadoop-root-namenode-hadoop1.out
- The authenticity of host 'localhost (127.0.0.1)' can't be established.
- RSA key fingerprint is e9:9f:f2:ea:f2:aa:47:58:5f:12:ea:3c:50:3f:0d:1b.
- Are you sure you want to continue connecting (yes/no)? yes
- localhost: Warning: Permanently added 'localhost' (RSA) to the list of known hosts.
- localhost: starting datanode, logging to /usr/local/hadoop/logs/hadoop-root-datanode-hadoop1.out
- Starting secondary namenodes [0.0.0.0]
- The authenticity of host '0.0.0.0 (0.0.0.0)' can't be established.
- RSA key fingerprint is e9:9f:f2:ea:f2:aa:47:58:5f:12:ea:3c:50:3f:0d:1b.
- Are you sure you want to continue connecting (yes/no)? yes
- 0.0.0.0: Warning: Permanently added '0.0.0.0' (RSA) to the list of known hosts.
- 0.0.0.0: starting secondarynamenode, logging to /usr/local/hadoop/logs/hadoop-root-secondarynamenode-hadoop1.out
- 16/02/11 21:41:27 WARN util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable
- starting yarn daemons
- starting resourcemanager, logging to /usr/local/hadoop/logs/yarn-root-resourcemanager-hadoop1.out
- localhost: starting nodemanager, logging to /usr/local/hadoop/logs/yarn-root-nodemanager-hadoop1.out
- [root@hadoop1 sbin]# jps
- 7192 SecondaryNameNode
- 7432 NodeManager
- 7468 Jps
- 6913 NameNode
- 7333 ResourceManager
- 7036 DataNode
验证: (1)执行命令jps 如果看到5个新的java进程，分别是NameNode、SecondaryNameNode、DataNode、ResourceManager、NodeManager
(2)在浏览器查看
hadoop web控制台页面的端口整理：
50070：hdfs文件管理 http://192.168.23.131:50070
8088：ResourceManager http://192.168.23.131:8088
8042：NodeManager http://192.168.23.131:8042
9 启动时没有NameNode的可能原因:
(1)没有格式化
(2)环境变量设置错误
(3)ip与hostname绑定失败
参考:
http://stark-summer.iteye.com/blog/2184123
http://www.aboutyun.com/thread-7513-1-1.html
