How can you add the arbitrary key-value pairs in your mapper?
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Where sorting is done in Hadoop MapReduce Job?
Why Mapreduce output written in local disk?
What do you understand by the term Straggler ?
Explain what you understand by speculative execution
Is it possible to search for files using wildcards?
How to submit extra files(jars,static files) for MapReduce job during runtime in Hadoop?
how indexing in HDFS is done?
Explain what does the conf.setmapper class do?
What is a Speculative Execution in Hadoop MapReduce?
What is a TaskInstance?
What do sorting and shuffling do?
What are combiners? When should I use a combiner in my MapReduce Job?
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