Its could be most basic question from newbies but still could anyone please let me know java concepts tightly coupled for working as developer in hadoop. Please advise. Thanks in advance.
The java hello world of Hadoop is WordCount, start with that, then advance to writing user defined functions in pig and hive, then try out Spark and Storm using Java API. First step is https://hadoop.apache.org/docs/current/hadoop-mapreduce-client/hadoop-mapreduce-client-core/MapReduc.... there are many answers to your question.
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