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What is a TaskInstance?
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What is the fundamental difference between a MapReduce InputSplit and HDFS block?
Which interface needs to be implemented to create Mapper and Reducer for the Hadoop?
What is Counter in MapReduce?
Where sorting is done in Hadoop MapReduce Job?
Explain the input type/format in mapreduce by default?
What is the function of mapreducer partitioner?
Explain the Reducer's Sort phase?
Explain what is distributed cache in mapreduce framework?
What is the default value of map and reduce max attempts?
Map reduce jobs take too long. What can be done to improve the performance of the cluster?
Which among the two is preferable for the project- Hadoop MapReduce or Apache Spark?
How to specify more than one directory as input in the Hadoop MapReduce Program?
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