What is the hadoop-core configuration?
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After increasing the replication level, I still see that data is under replicated. What could be wrong?
What is the role of the secondary namenode?
How can one write custom record reader?
Can you explain the common input formats in hadoop?
Explain InputSplit in Hadoop?
What are the hadoop configuration files at present?
How does job tracker schedule a job for the task tracker?
List of some best tools that can be useful for data-analysis?
What are the main features and Characteristics of Hadoop which makes it the most popular and powerful Big Data tool?
What are the important modes of hadoop?
What are the benefits yarn brings in to hadoop?
Did you ever ran into a lop sided job that resulted in out of memory error, if yes then how did you handled it ?
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