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Write a short note on the disadvantages of mapreduce
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If reducers do not start before all mappers finish then why does the progress on mapreduce job shows something like map(50%) reduce(10%)? Why reducers progress percentage is displayed when mapper is not finished yet?
What platform and Java version is required to run Hadoop?
What is the Job interface in MapReduce framework?
Explain the input type/format in mapreduce by default?
mapper or reducer?
How many InputSplits is made by a Hadoop Framework?
What is SequenceFileInputFormat in Hadoop MapReduce?
Is it necessary to write a mapreduce job in java?
Why Hadoop MapReduce?
How does fault tolerance work in mapreduce?
Is it possible to rename the output file?
What are the configuration parameters in the 'MapReduce' program?
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