Mention when to use Map reduce mode?
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What is heartbeat in hdfs?
What is a Speculative Execution in Hadoop MapReduce?
What do you mean by data locality?
What is shuffling and sorting in mapreduce?
What is mapper in map reduce?
Explain how mapreduce works.
In Hadoop what is InputSplit?
Map reduce jobs are failing on a cluster that was just restarted. They worked before restart. What could be wrong?
When is it not recommended to use MapReduce paradigm for large
Is it important for Hadoop MapReduce jobs to be written in Java?
What is optimal size of a file for distributed cache?
What is reduce side join in mapreduce?