- Hadoop
- 安装
安装并配置hadoop-2.6.4(在master中)
(1)将hadoop-2.6.4.tar.gz安装包复制到hadoop文件目录下（与windows环境下类似）。
(2)解压hadoop-2.6.4.tar.gz
cd
cd hadoop
tar -zxvf hadoop-2.6.4.tar.gz
添加环境变量： vim /etc/profile
在最后添加
# set hadoop environment
export HADOOP_HOME=/usr/hadoop-2.6.2
export PATH=$PATH:$HADOOP_HOME/bin:$HADOOP_HOME/sbin
生效：source /etc/profile
配置Hadoop (cd /usr/hadoop-2.6.2)
1、vi core-site.xml
<configuration>
<property>
<name>hadoop.tmp.dir</name>
<value>/usr/hadoop-2.6.2/tmp</value>
<description>Abase for other temporary directories.</description>
</property>
<property>
<name>fs.defaultFS</name>
<value>hdfs://master:9000</value>
</property>
<property>
<name>io.file.buffer.size</name>
<value>4096</value>
</property>
</configuration>
2、vi hadoop-env.sh 在开头加上 export JAVA_HOME=/usr/jdk1.7.0_79
3、vi yarn-env.sh 在开头加上 export JAVA_HOME=/usr/jdk1.7.0_79
4、vi hdfs-site.xml
<configuration>
<property>
<name>dfs.namenode.name.dir</name>
<value>file:///usr/hadoop-2.6.2/dfs/name</value>
</property>
<property>
<name>dfs.datanode.data.dir</name>
<value>file:///usr/hadoop-2.6.2/dfs/data</value>
</property>
<property>
<name>dfs.replication</name>
<value>2</value>
</property>
<property>
<name>dfs.nameservices</name>
<value>hadoop-cluster1</value>
</property>
<property>
<name>dfs.namenode.secondary.http-address</name>
<value>master:50090</value>
</property>
<property>
<name>dfs.webhdfs.enabled</name>
<value>true</value>
</property>
</configuration>
5、vi mapred-site.xml
<configuration>
<property>
<name>mapreduce.framework.name</name>
<value>yarn</value>
<final>true</final>
</property>
<property>
<name>mapreduce.jobtracker.http.address</name>
<value>master:50030</value>
</property>
<property>
<name>mapreduce.jobhistory.address</name>
<value>master:10020</value>
</property>
<property>
<name>mapreduce.jobhistory.webapp.address</name>
<value>master:19888</value>
</property>
<property>
<name>mapred.job.tracker</name>
<value>http://master.Hadoop:9001</value>
</property>
</configuration>
6、vi yarn-site.xml
<configuration>
<!-- Site specific YARN configuration properties -->
<property>
<name>yarn.resourcemanager.hostname</name>
<value>master</value>
</property>
<property>
<name>yarn.nodemanager.aux-services</name>
<value>mapreduce_shuffle</value>
</property>
<property>
<name>yarn.resourcemanager.address</name>
<value>master:8032</value>
</property>
<property>
<name>yarn.resourcemanager.scheduler.address</name>
<value>master:8030</value>
</property>
<property>
<name>yarn.resourcemanager.resource-tracker.address</name>
<value>master:8031</value>
</property>
<property>
<name>yarn.resourcemanager.admin.address</name>
<value>master:8033</value>
</property>
<property>
<name>yarn.resourcemanager.webapp.address</name>
<value>master:8088</value>
</property>
</configuration>
7、vi slaves
slave1
slave2
8、复制到slave上 scp -r /usr/hadoop-2.6.2/ root@slave1:/usr/
9、配置slave上的Hadoop环境变量
添加环境变量： vim /etc/profile
在最后添加
# set hadoop environment
export HADOOP_HOME=/usr/local/hadoop-2.8.4
export PATH=$PATH:$HADOOP_HOME/bin:$HADOOP_HOME/sbin
生效：source /etc/profile
10、启动
先启动hadoop集群start-all.sh