Explain job scheduling through JobTracker
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What is OutputCommitter?
How to specify more than one directory as input in the Hadoop MapReduce Program?
Is it possible to search for files using wildcards?
How to submit extra files(jars, static files) for MapReduce job during runtime?
What is the utility of using Writable Comparable Custom Class in Map Reduce code?
How do ‘map’ and ‘reduce’ work?
What is the fundamental difference between a MapReduce Split and a HDFS block?scale data processing?
Is there any point of learning mapreduce, then?
How do you stop a running job gracefully?
Define MapReduce?
What is the difference between a MapReduce InputSplit and HDFS block?
Does mapreduce programming model provide a way for reducers to communicate with each other? In a mapreduce job can a reducer communicate with another reducer?
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