If a data Node is full how it's identified?
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Virtual Box & Ubuntu Installation?
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?
Which data storage components are used by hadoop?
Can we do online transactions(oltp) using hadoop?
What is a checkpoint?
How the Client communicates with HDFS?
Explain the difference between gen1 and gen2 hadoop with regards to the namenode?
What is Rack Awareness in Apache Hadoop?
What is a Task instance in Hadoop? Where does it run?1
What is the function of ApplicationMaster?
What is difference between secondary namenode, checkpoint namenode & backupnod secondary namenode, a poorly named component of hadoop?
Is it necessary to write jobs for hadoop in the java language?
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