What are the characteristics of hadoop framework?
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what are the steps involved in decommissioning removing
Why we cannot do aggregation (addition) in a mapper? Why we require reducer for that?
Explain the Job OutputFormat?
How can one increase replication factor to a desired value in Hadoop?
Is fs.mapr.working.dir a single directory?
what is a datanode?
What is your favourite tool in the hadoop ecosystem?
What are the core components of Apache Hadoop?
What is a “Distributed Cache” in Apache Hadoop?
What is partioner in hadoop? Where does it run,mapper or reducer?
What is Safemode in Apache Hadoop?
What is the process to change the files at arbitrary locations in HDFS?
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