hadoop Windows org.codehaus.mojo：exec-maven-plugin

Question

I am trying to install hadoop on my windows machine. I am following this guide: https://wiki.apache.org/hadoop/Hadoop2OnWindows but when I have to execute this line:

mvn package -Pdist,native-win -DskipTests -Dtar 

I have this error:

 [ERROR] Failed to execute goal org.codehaus.mojo:exec-maven-plugin:1.2:exec (com pile-ms-winutils) on project hadoop-common: Command execution failed. Process ex ited with an error: 1(Exit value: 1) -> [Help 1] [ERROR] [ERROR] To see the full stack trace of the errors, re-run Maven with the -e swit ch. [ERROR] Re-run Maven using the -X switch to enable full debug logging. [ERROR] [ERROR] For more information about the errors and possible solutions, please rea d the following articles: [ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoExecutionE xception 

I already read this post build hadoop 2.2 on windows but I am not able to understand how to solve.

Thank you in advance for your help.

Alex

Answer 1

You ran that command from a Windows SDK Command Prompt, right? Taking a look at this guide I wrote recently and make sure you have the proper tools installed.

Answer 2

If you are using recent versions of Hadoop, ie Hadoop-2.8, or 2.7 then there is no need to built the Hadoop-src using Maven, there is an easy way to configure (higher versions) Hadoop in windows.

Download & Install Java in c:/java/

make sure the path is this way, if java is installed in program files, then hadoop-env.cmd will not recognize java path

Download Hadoop binary distribution.

I am using binary distribution Hadoop-2.8.1

Set Environment Variables:

JAVA_HOME = "c:/Java"
HADOOP_HOME="<your hadoop home>"
Path= "JAVA_HOME/bin"
Path = "HADOOP_HOME/bin" 

Hadoop will work on windows if Hadoop-src is built using maven in your windows machine. Building the Hadoop-src (distribution) will create a Hadoop binary distribution, which will work as windows native version.

But if you don't want to do that, then download pre-builted winutils of Hadoop distribution. Here is a GitHub link , which has winutils of some versions of Hadoop.

if the version you are using is not in the list, the follow the conventional method for setting up Hadoop on windows - link

If you found your version, then copy paste all content of folder into path: /bin/

Set all the .xml configuration files - Link & set JAVA_HOME path in hadoop-env.cmd file

From cmd go to:

<HADOOP_HOME>/bin/> hdfs namenode -format
<HADOOP_HOME>/sbin> start-all.cmd

Hope this helps.