when do reducers play their role in a mapreduce task?
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How to set the number of mappers to be created in MapReduce?
How will you submit extra files or data ( like jars, static files, etc. ) For a mapreduce job during runtime?
What does a 'MapReduce Partitioner' do?
What is a mapreduce algorithm?
Map reduce jobs are failing on a cluster that was just restarted. They worked before restart. What could be wrong?
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Define Writable data types in MapReduce?
Mention what is the next step after mapper or maptask?
what is WebDAV in Hadoop?
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