Explain what if rack 2 and datanode fails?
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What are the steps to submit a Hadoop job?
Hadoop Libraries and Utilities and Miscellaneous Hadoop Applications?
What is a speculative execution in Apache Hadoop MapReduce?
Explain what happens in textinformat ?
Explain the use of tasktracker in the hadoop cluster?
did you maintain the hadoop cluster in-house or used hadoop in the cloud?
shouldn't DFS be able to handle large volumes of data already?
Define fault tolerance?
What are the modules that constitute the Apache Hadoop 2.0 framework?
Is hadoop obsolete?
Is hadoop based on google mapreduce?
Is hadoop open source?
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