How will you write a custom partitioner for a Hadoop job?
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Have you ever used counters in hadoop?
How do you overwrite replication factor?
What is the use of cloudera?
Explain Erasure Coding in Hadoop?
Can hadoop replace relational database?
What happen on the namenode when a client tries to read a data file?
What are the common types of NOSQL data bases ?
Explain what is sequencefileinputformat?
What is the problem with small files in Hadoop?
What are the different modes in which we can configure/install Hadoop?
What type of data hadoop can handle ?
Is it possible to have hadoop job output in multiple directories? If yes, how?
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