Rack awareness of Namenode?
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Explain the hadoop configuration files at present?
Does this lead to security issues?
what is SPF?
What is the functionality of jobtracker in hadoop?
What is a 'block' in HDFS?
Define a job tracker?
What is difference between secondary namenode, checkpoint namenode & backupnod secondary namenode, a poorly named component of hadoop?
What is InputSplit and RecordReader?
What do the master class and the output class do?
How will you make changes to the default configuration files?
What are the limitations of importing RDBMS tables into Hcatalog directly?
Can we have multiple entries in the master files?