Did you ever built a production process in hadoop ? If yes then what was the process when your hadoop job fails due to any reason?
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In cloudera there is already a cluster, but if I want to form a cluster on ubuntu can we do it?
How indexing is done in HDFS?
What is the difference between Gen1 and Gen2 Hadoop with regards to the Namenode?
What are different types of filesystem?
How many instances of a jobtracker run on hadoop cluster?
Explain the hadoop-core configuration?
Where is the Mapper Output stored?
What do you know about sequencefileinputformat?
What are the functionalities of jobtracker?
What is the difference between HDFS and NAS ?
How we can take Hadoop out of Safe Mode?
What is the meaning of speculative execution in Hadoop? Why is it important?
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