hadoop在linux上的安裝 配置免密碼登錄 ssh-keygen -t dsa -P -f ~/.ssh/id_dsa cat ~/.ssh/id_dsa.pub ~/.ssh/authorized_keys test：ssh localhost hadoop環(huán)境變量 export JAVA_HOME=/usr/local/jdk export HADOOP_INSTALL=/usr/local/hadoop export PATH=

hadoop在linux上的安裝

配置免密碼登錄

ssh-keygen -t dsa -P '' -f ~/.ssh/id_dsa

cat ~/.ssh/id_dsa.pub >> ~/.ssh/authorized_keys

test：ssh localhost

hadoop環(huán)境變量

export JAVA_HOME=/usr/local/jdk

export HADOOP_INSTALL=/usr/local/hadoop

export PATH=$PATH:$HADOOP_INSTALL/bin

修改hadoop配置

修改conf/core-site.xml

fs.default.name

hdfs://localhost:9000

修改conf/hdfs-site.xml

dfs.replication

1

修改conf/mapred-site.xml

mapred.job.tracker

localhost:9001

啟動

./bin/hadoop namenode -format

./bin/start-all.sh

測試

localhost:50030

localhost:50070

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