what is a Task Tracker in Hadoop?
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Why Mapper runs in heavy weight process and not in a thread in MapReduce?
How to change the name of the output file from part-r-00000 in Hadoop MapReduce?
With the help of two examples name the map and reduce function purpose
What is reduce side join in mapreduce?
What is a Speculative Execution in Hadoop MapReduce?
What is the Reducer used for?
how can you check whether Namenode is working beside using the jps command?
Is it necessary to write a mapreduce job in java?
what is distributed cache in mapreduce framework?
What are ‘reduces’?
What is MapReduce in Hadoop?
Explain what does the conf.setmapper class do?