[Spark Asia Pacific Research Institute Series] the path to spark practice-Chapter 1 building a spark cluster (step 5) (2)

Download the downloaded"Hadoop-2.2.0.tar.gz "Copy to"/Usr/local/hadoop/"directory and decompress it:

Modify the system configuration file ~ /Configure "hadoop_home" in the bashrc file and add the bin folder under "hadoop_home" to the path. After modification, run the source command to make the configuration take effect.

Next, create a folder in the hadoop directory using the following command:

\Next, modify the hadoop configuration file. First, go to the hadoop 2.2.0 configuration file area:

Step 1 modify the profile hadoop-env.sh and add "java_home" to it, as shown below:

Specify the "java_home" We have installed ":

Step 2 modify the configuration file yarn-env.sh and add "java_home" to it, as shown below:

Specify the "java_home" We have installed ":

Step 3 modify the configuration file mapred-env.sh and add "java_home" to it, as shown below:

Specify the "java_home" We have installed ":

[Spark Asia Pacific Research Institute Series] the path to spark practice-Chapter 1 building a spark cluster (step 5) (2)