ubuntu单机伪分布式下hadoop安装.doc

ubuntu单机伪分布式下hadoop安装1??更新 deb??? 软件包列表?? $ sudo apt-get update 2?安装jdk：$sudo apt-get install sun-java6-jdk? //如果出错，参照我上一篇安装jdk遇到的问题及解决办法3?设置 CLASSPATH和JAVA_HOME?系统环境变量?????? $ sudo gedit /etc/environment ?????? 添加以下两行内容: ?????? CLASSPATH=.:/usr/lib/jvm/java-6-sun/lib ?????? JAVA_HOME=/usr/lib/jvm/java-6-sun 4??下载 hadoop-*.tar.gz??? 至 /home/shiep205/???????????????//shiep205是用户名?????? $ cd ~??????????????????????????????? //?? 选择默认路径?????? $ sudo tar xzf hadoop-0.20.0.tar.gz? //?? 解压至当前路径?????? $ mv hadoop-0.20.0 hadoop????????? //?? 重命名为 hadoop ?????? $ sudo chown -R shiep205:shiep205 hadoop //赋予shiep205?权限 5? 更新 hadoop 环境变量????? $ gedit hadoop/conf/hadoop-env.sh ?????? 将 #export JAVA_HOME=/usr/lib/jvm/java-6-sun ???export JAVA_HOME=/usr/lib/jvm/java-6-sun?? //? 即export? JAVA_HOME=****/****，*处改为自己的路径 6? 配置 SSH???????????????? //此步不需要改动，一步步输入终端即可???? $ sudo apt-get install ssh ??? ?$ sudo apt-get install rsync? //远程同步,?? 可能已经安装了必威体育精装版版本???? $ ssh-keygen -t dsa -P -f ~/.ssh/id_dsa ???? $ cat ~/.ssh/id_dsa.pub ~/.ssh/authorized_keys????? $ ssh localhost?????????????? //? 验证配置成功与否 7? 伪分布运行模式是在运行在单个机器之上,?? 每一个 hadoop 的守护进程为一个单独的 java 进程。(一) 配置三个文件 首先进入你存的hadoop文件夹里的conf文件夹(本例将hadoop安装在shiep205/hadoop文件夹里) ? $cd ~ ? $cd??hadoop/conf ??$nano core-site.xml 即进入?conf/core-site.xml:?? （按下面逐个修改配置文件修改conf/core-site.xml:文件：?????? configuration ????????? property ???????????? name/name ???????????? valuehdfs://localhost:9000/value ????????? /property ?????? /configuration 修改conf/hdfs-site.xml: 文件：?????? configuration ????????? property ???????????? namedfs.replication/name ???????????? value1/value ????????? /property ?????? /configuration ??修改? conf/mapred-site.xml: 文件：?????? configuration ????????? property ???????????? namemapred.job.tracker/name ??????????? valuelocalhost:9001/value ???????? /property ????? /configuration （二）格式化HDFS 进入hadoop主目录的bin目录下 ???? $cd hadoop/bin? ???? $./hadoop namenode -format??? //格式化hadoop namenode，很多时候nameno