What are the different methods to run Spark over Apache Hadoop?
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Explain the difference between NameNode
Define tasktracker.
What is 'Key value pair' in HDFS?
Does the hdfs client decide the input split or namenode?
Explain a simple Map/Reduce problem.
What is Hadoop?
What is crontab? Explain with suitable example?
How to Administering Hadoop?
What is Row Key?
What is HDFS Block size? How is it different from traditional file system block size?
How to change replication factor of files already stored in HDFS?
Explain why do we need hadoop?
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