Explain JobConf in MapReduce.
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What is difference between a MapReduce InputSplit and HDFS block
Explain about the partitioning, shuffle and sort phase
Describe what happens to a mapreduce job from submission to output?
Is it possible to search for files using wildcards?
How does MapReduce framework view its input internally?
How to write MapReduce Programs?
Can MapReduce program be written in any language other than Java?
What is the default value of map and reduce max attempts?
What happens when the node running the map task fails before the map output has been sent to the reducer?
When is the reducers are started in a MapReduce job?
How to overwrite an existing output file during execution of mapreduce jobs?
What is heartbeat in hdfs?
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