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Editor to share with you how to configure hadoop in ubuntu14.04. I hope you will get something after reading this article. Let's discuss it together.

1. Set up root account: sudo passwd 2. Select other users to log in: sudo gedit / usr/share/lightdm/lightdm.conf.d/50-ubuntu.conf adds a line in the pop-up window:: greeter-show-manual-login=true3, give ordinary users root permission: sudo gedit / etc/passwd to find the user's name on the penultimate line Change the two 1000 to 0 to save 4, configure ssh:apt-get install openssh-server5, and generate a password-free login key: ssh-keygen-t rsa-P''cat / root/.ssh/id_dsa.pub > > / root/.ssh/authorized_keys Authorization: chmod 644 / root/.ssh/authorized_keys also executes the above two sentences on the other two hosts. Copy the id_dsa.pub on the host to the other two hosts. The same is true for scp / root/.ssh/id_dsa.pub slave1:/root/.ssh/id_dsa.pub.red switching to slave1 execution: cat / root/.ssh/id_dsa.pub.red > > authorized_keysslave2. Try whether you can log in to ssh localhost, ssh slave1, ssh slave2 without a password. 6. Install jdk, configure environment variables: sudo gedit ~ / .bassrc join: export JAVA_HOME=/usr/local/java/jdk1.7.0_79 export JRE_HOME=$ {JAVA_HOME} / jre export CLASSPATH=.:$ {JAVA_HOME} / lib:$ {JRE_HOME} / lib export PATH=$ {JAVA_HOME} / bin:$PATH save, execute: source ~ / bashrc to check whether jdk is configured successfully Execution: java, java-version7, download hadoop-2.6.4 are configured according to the connection at the beginning of the article. Remember to copy the configured hadoop-2.6.4 to the other two hosts scp-r / usr/hadoop-2.6.4/ slave1:/usr/scp-r / usr/hadoop-2.6.4/ slave2:/usr/ after reading this article, I believe you have a certain understanding of "how to configure hadoop in ubuntu14.04". If you want to know more about it, welcome to follow the industry information channel, thank you for reading!

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