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摘要： A Hadoop job may consist of many map tasks and reduce tasks. Therefore, debugging a Hadoop job is often a complicated process. It is a good practice to first test a Hadoop job using unit tests ... 阅读全文

摘要： Often Hadoop jobsare executed through a command line. Therefore, each Hadoop job has to support reading, parsing, and processing command-line arguments. To avoid each developer having to rewrit... 阅读全文