What are the functionalities of jobtracker?
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Mention what are the data components used by Hadoop?
Explain InputFormat?
what should be the ideal replication factor in hadoop?
Define a commodity hardware? Does commodity hardware include ram?
What is the purpose of button groups?
What is the difference between traditional RDBMS and Hadoop?
How would you tackle counting words in several text documents?
What is a block and block scanner in HDFS?
What are channel selectors?
How does an hadoop application look like or their basic components?
How Mapper is instantiated in a running job?
What do you know by storage and compute node?