How to Practice Hadoop Online

Taking Courses and Using Tutorials

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   Sign up for Cloudera for a 6-part course and interactive tutorials. Cloudera gives you real-world examples to practice on in a read-only environment, so you don't have to worry about making huge mistakes. They also offer analytic tools to help you experiment querying data, as well as a free live demo called Cloudera Live to help you learn the Hadoop environment.^{[1] X Research source}

   1. Although the complete, in-depth course with certification will cost you $295, it will definitely be worth it if you're using these skills for your job. Using the Cloudera course will help you catch mistakes and save time, which will make it quickly pay for itself!^{[2] X Research source}
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   Try free online courses through Cloudera if you already know the basics. If you have experience with Hadoop and just want a refresher, you may not need to shell out the money for the 6-part course. Instead, check out the free online courses on the Cloudera University website.

   1. There are resources for administrators, developers, and data analysts, so not matter what your role is, you should be able to find an appropriate course.
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   Take a university-level course on Coursera if you want more theory. Coursera is a well-known, respected source of programming courses. Although the instructions are generally more theoretical and don't include as many running examples, you can practice alongside the tutorial and use the course projects to gain practical experience.^{[3] X Research source}

   1. You can find this course online at https://www.coursera.org/specializations/big-data.
   2. The cost varies between courses, but Coursera also offers a financial aid option to those who qualify.
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   Follow a free course on Big Data University for a cost-friendly option. If you don't want to pay for an online course, Big Data University is a great option. They have a 2-part course, which focuses first on Hadoop basics, then on programming with Hadoop, and the online format makes it easy to go at your own pace.^{[4] X Research source}

   1. You can find these courses on https://cognitiveclass.ai.
   2. They offer many tutorials in English, as well as Japanese, Spanish, Portuguese, and Russian.
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   Search for walkthroughs on YouTube if you need free, specific training. There are thousands of videos made to explain Hadoop and how to utilize it. The wide range of videos gives you flexibility, plus it's free. If you run into a specific problem, search on YouTube for a video that walks you through the process.^{[5] X Research source}

   1. Hadoop tutorials should also be fairly easy to find, since 'hadoop' is a unique search term.^{[6] X Research source}
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   Use Yahoo's free tutorials if you want to practice with a virtual example. These tutorials are broken up into 7 modules, and they instruct you on installing and operating Hadoop from the very beginning. This is a great option for brushing up on specific skills if they're a little rusty.^{[7] X Research source}

   1. You can find these tutorials available for free at https://developer.yahoo.com/hadoop/tutorial/.
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   Refer to the IBM Open Source document for free, in-depth instructions. This is an incredibly thorough, open-source PDF document created by an IBM training initiative. It walks you through Hadoop carefully, step by step, and gives clear written instructions.

   1. You can find this PDF at https://www.ibm.com/developerworks/data/library/techarticle/dm-1209hadoopbigdata/.
   2. These instructions also work well when paired with a live demo like Cloudera.^{[8] X Research source}