What should be the ideal replication factor in Hadoop Cluster?
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Define a namenode?
What are the default configuration files that are used in hadoop?
What is the default block size in Hadoop 1 and in Hadoop 2? Can it be changed?
Mention what are the data components used by Hadoop?
what are Task Tracker and Job Tracker?
Explain what is the purpose of RecordReader in Hadoop?
what are the steps involved in commissioning adding
Define a daemon?
Why the name ‘hadoop’?
What is the process to change the files at arbitrary locations in HDFS?
What are different types of filesystem?
What is InputSplit and RecordReader?
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