Explain the basic difference between traditional rdbms and hadoop?
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How can we check whether namenode is working or not?
How to enable recycle bin or trash in hadoop?
Explain why do we need hadoop?
Mention what is the use of Context Object?
What is oozie in hadoop?
what are Task Tracker and Job Tracker?
What is HDFS ? How it is different from traditional file systems?
Explain what if rack 2 and datanode fails?
What is version-id mismatch error in hadoop?
What do you know by storage and compute node?
What infrastructure do we need to process 100 TB data using Hadoop?
What do you know about keyvaluetextinputformat?
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