How to submit extra files(jars,static files) for MapReduce job during runtime in Hadoop?
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Explain what you understand by speculative execution
What is the difference between map and reduce?
Which one will you decide for an undertaking – Hadoop MapReduce or Apache Spark?
What is mapreduce algorithm?
What is the difference between RDBMS with Hadoop MapReduce?
Is it possible to search for files using wildcards?
What is the difference between a MapReduce InputSplit and HDFS block?
how is data partitioned before it is sent to the reducer if no custom partitioner is defined in Hadoop?
What is difference between an input split and hdfs block?
Explain about the basic parameters of mapper and reducer function
Explain what is the function of mapreduce partitioner?
How do you stop a running job gracefully?
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