What is the function of mapreduce partitioner?
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How can you add the arbitrary key-value pairs in your mapper?
Is it mandatory to set input and output type/format in MapReduce?
how indexing in HDFS is done?
Is it possible to split 100 lines of input as a single split in MapReduce?
What is the purpose of textinputformat?
What is the next step after Mapper or MapTask?
What does conf.setmapper class do?
In Hadoop, which file controls reporting in Hadoop?
What is the difference between HDFS block and input split?
What is the difference between map and reduce?
How to set the number of mappers for a MapReduce job?
What happens when a DataNode fails during the write process?
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