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Why Mapreduce output written in local disk?
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What do sorting and shuffling do?
How to sort intermediate output based on values in MapReduce?
What is the need of key-value pair to process the data in MapReduce?
What is the difference between RDBMS with Hadoop MapReduce?
How to set the number of mappers to be created in MapReduce?
Why the output of map tasks are stored (spilled ) into local disc and not in hdfs?
With the help of two examples name the map and reduce function purpose
What is the key- value pair in Hadoop MapReduce?
What is MapReduce in Hadoop?
what is storage and compute nodes?
Explain the sequence of execution of all the components of MapReduce like a map, reduce, recordReader, split, combiner, partitioner, sort, shuffle.
Name job control options specified by mapreduce.
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Apache Hadoop (394) - MapReduce (354)
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- Apache HDFS Hadoop Distributed File System (214)
- Apache Kafka (189)
- Apache Avro (26)
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- Hadoop General (407)
