What are the core components of Apache Hadoop?
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Why do we need a password-less ssh in fully distributed environment?
Is it necessary to write jobs for hadoop in the java language?
What alternate way does HDFS provides to recover data in case a Namenode
Name some companies that use Hadoop?
How do you categorize a big data?
What is commodity hardware?
How do you define "block" in HDFS?
How can we check whether namenode is working or not?
What is Safemode in Apache Hadoop?
Explain the overview of hadoop history breifly?
What is unstructured data?
What is the problem with HDFS and streaming data like logs
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