Yes, there is much more convenient way of keeping track of you hadoop operations. YARN also provides a very well built Web UI to keep track of the hadoop jobs running in a hadoop cluster. You can access this UI by navigating to:
localhost:8088 in your web browser - For Hadoop 3.x
The study material for Hadoop is not vividly available on external multiple sources. A hadoop certification course would really make you grasp the fundamental aspects of hadoop.
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