Hadoop的安装过程详解
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安装JDK
解压jdk压缩包
tar -zxvf /home/hadoop/software/jdk-7u80-linux-x64.tar.gz -C /usr/java/ 1 2
配置jdk环境变量
hadoop:root:/usr/java:>vi /etc/profile # /etc/profile # System wide environment and startup programs, for login setup # Functions and aliases go in /etc/bashrc # It's NOT a good idea to change this file unless you know what you # are doing. It's much better to create a custom.sh shell script in # /etc/profile.d/ to make custom changes to your environment, as this # will prevent the need for merging in future updates. #add path export JAVA_HOME=/usr/java/jdk1.7.0_80 export PATH=$JAVA_HOME/bin:$PATH #show path hadoop:root:/usr/java:>source /etc/profile hadoop:root:/usr/java:>java -version java version "1.7.0_80" Java(TM) SE Runtime Environment (build 1.7.0_80-b15) Java HotSpot(TM) 64-Bit Server VM (build 24.80-b11, mixed mode) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26
安装Hadoop
解压Hadoop
hadoop:hadoop:/home/hadoop/app:>tar -zxvf /home/hadoop/software/hadoop-2.6.0-cdh6.7.0.tar.gz -C /home/hadoop/app/配置环境
hadoop:hadoop:/home/hadoop:>vi .bash_profile # .bash_profile # Get the aliases and functions if [ -f ~/.bashrc ]; then . ~/.bashrc fi # User specific environment and startup programs export HADOOP_HOME=/home/hadoop/app/hadoop-2.6.0-cdh6.7.0 export PATH=$HADOOP_HOME/bin:$HADOOP_HOME/sbin:$PATH hadoop:hadoop:/home/hadoop:>source .bash_profile hadoop:hadoop:/home/hadoop:>echo $HADOOP_HOME /home/hadoop/app/hadoop-2.6.0-cdh6.7.0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19
格式化Hadoop
hdfs namenode -format 1 2
<h3 id="启动hadoop" white-space:normal;background-color:#FFFFFF;"> 启动Hadoop
hadoop:hadoop:/home/hadoop/app/hadoop-2.6.0-cdh6.7.0/etc/hadoop:>start-all.sh This script is Deprecated. Instead use start-dfs.sh and start-yarn.sh 18/01/02 02:49:33 WARN util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable Starting namenodes on [hadoop] hadoop: starting namenode, logging to /home/hadoop/app/hadoop-2.6.0-cdh6.7.0/logs/hadoop-hadoop-namenode-hadoop.out hadoop: starting datanode, logging to /home/hadoop/app/hadoop-2.6.0-cdh6.7.0/logs/hadoop-hadoop-datanode-hadoop.out Starting secondary namenodes [0.0.0.0] 0.0.0.0: starting secondarynamenode, logging to /home/hadoop/app/hadoop-2.6.0-cdh6.7.0/logs/hadoop-hadoop-secondarynamenode-hadoop.out 18/01/02 02:50:15 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 /home/hadoop/app/hadoop-2.6.0-cdh6.7.0/logs/yarn-hadoop-resourcemanager-hadoop.out hadoop: starting nodemanager, logging to /home/hadoop/app/hadoop-2.6.0-cdh6.7.0/logs/yarn-hadoop-nodemanager-hadoop.out hadoop:hadoop:/home/hadoop/app/hadoop-2.6.0-cdh6.7.0/etc/hadoop:>jps 8345 NodeManager 8066 SecondaryNameNode 7820 NameNode 7914 DataNode 8249 ResourceManager 8613 Jps
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