Map Reduce Programs

[DataFlair Team]

How can we compile and execute map reduce programs without using eclipse?

[DataFlair Team]

1) Write your MapReduce Program in a Text editor of your choice.

2) Place the source code (.java) file in any folder.

3) Compile the source using the following command:
javac -cp <path to hadoop client libraries> -d classes *.java

4) Create a jar file:
jar cvf sample.jar classes

5) Execute the jar file
hadoop jar sample.jar <fully qualified main class> <arg1> <arg2> ...

Alternatively, if you have Maven installed, then you can do the same by creating a Maven Project Structure from the Command Line, create a pom.xml and executemvn packagewithout worrying about external client libraries that Apache provides for Hadoop.

Follow the link for more details:https:
//maven.apache.org/guides/getting-started/maven-in-five-minutes.html

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