What is the function of mapreducer partitioner?
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what is JobTracker in Hadoop? What are the actions followed by Hadoop?
How many times combiner is called on a mapper node in Hadoop?
Is it possible to search for files using wildcards?
What is the difference between a MapReduce InputSplit and HDFS block?
What is optimal size of a file for distributed cache?
How to optimize Hadoop MapReduce Job?
How does MapReduce framework view its input internally?
What are ‘maps’ and ‘reduces’?
Map reduce jobs are failing on a cluster that was just restarted. They worked before restart. What could be wrong?
what is NameNode in Hadoop?
Define the Use of MapReduce?
Define Writable data types in Hadoop MapReduce?
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