How does NameNode tackle DataNode failures?
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Explain what if rack 2 and datanode fails?
Explain the shuffle?
what are Task Tracker and Job Tracker?
Does hadoop always require digital data to process?
What are the benefits of block transfer?
How can I restart namenode?
What is Rack awareness?
Define a datanode?
What is HDFS Block size? How is it different from traditional file system block size?
what are the nodes in the Hadoop cluster?
What is Hadoop?
Explain how can we change the split size if our commodity hardware has less storage space?
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