Now that you have successfully unzipped Hadoop, let's try and run a Hadoop program in standalone mode. As we mentioned in the introduction, Hadoop's standalone mode does not require any runtime; you can directly run your MapReduce program by running your compiled jar. We will look at how you can write MapReduce programs in the Chapter 4, Developing MapReduce Applications. For now, it's time to run a program we have already prepared. To download, compile, and run the sample program, simply take the following steps:
Please note that this is not a mandatory requirement for setting up Apache Hadoop. You do not need a Maven or Git repository setup to compile or run Hadoop. We are doing this to run some simple examples.
- You will need Maven and Git on your machine to proceed. Apache Maven can be set up with the following command:
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