What is tasktracker in hadoop?
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Explain map-only job?
Mention what does the text input format do?
How Hadoop’s CLASSPATH plays a vital role in starting or stopping in Hadoop daemons?
Can hadoop handle streaming data?
How would you check whether your NameNode is working or not?
Explain what is jobtracker in hadoop? What are the actions followed by hadoop?
How to debug Hadoop code?
If datanodes increase, then do we need to upgrade namenode?
For using hadoop list the network requirements?
Where is hadoop-env.sh file present?
Can you explain indexing?
How is the splitting of file invoked in Hadoop framework?
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