What do you know about yarn?
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What is a commodity hardware? Does commodity hardware include RAM?
What are the differences between hadoop 1 and hadoop 2?
Is it possible to provide multiple input to Hadoop? If yes then how can you give multiple directories as input to the Hadoop job?
What mode(s) can hadoop code be run in?
How will you write a custom partitioner for a Hadoop job?
What does rack awareness mean?
What is purpose of RecordWriter in Hadoop?
Compare Apache Hadoop and Apache Spark?
Explain how can you check whether namenode is working beside using the jps command?
What are configuration files in Hadoop?
What are the features of Fully-Distributed mode?
What is Small File Problem in Hadoop? How can it be resolved?
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