How to configure and start hadoop1.1.2

This article mainly shows you "how to configure and start hadoop1.1.2", which is easy to understand and clear. I hope it can help you solve your doubts. Let me lead you to study and learn how to configure and start hadoop1.1.2.

1. Install jdk and configure environment variables

Download address: http://yunpan.cn/csUMbjpYd6LIU extraction code 8e1d

Modify / etc/profile

Export JAVA_HOME=/opt/jdk1.6.0_12

Export PATH=$PATH:$JAVA_HOME/bin

Restart

two。 Download hadoop1.1.2

Download address: http://yunpan.cn/csUMinfxTYFZr extraction code 7bf8

Modify the configuration file

Hadoop-env.sh

Export JAVA_HOME=/opt/jdk1.6.0_12

Core-site.xml

Fs.default.name

Hdfs://localhost:9000

Hadoop.tmp.dir

/ opt/hadoop-1.1.2/tmp

Hdfs-site.xml

Dfs.replication

one

Mapred-site.xml

Mapred.job.tracker

Localhost:9001

Password-free login

$ssh-keygen-t rsa

$cd $HOME/.ssh

$cp id_rsa.pub authorized_keys

$ssh localhost

Format HDFS:hadoop namenode-format

Start the hadoop cluster: start-all.sh

Uninstall hadoop. Since there are no environment variables, just delete the file.

These are all the contents of the article "how to configure and start hadoop1.1.2". Thank you for reading! I believe we all have a certain understanding, hope to share the content to help you, if you want to learn more knowledge, welcome to follow the industry information channel!