Ideally what should be the block size in hadoop?
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What is job tracker role in hadoop?
If the hadoop administrator needs to make a change, which configuration file does he need to change?
What happens in text format?
How namenode handles data node failures?
How does hadoop achieve fault tolerance?
What is Chain Mapper?
what happens when namenode goes down during file read operation in hadoop?
What are the important modes of hadoop?
What is purpose of RecordWriter in Hadoop?
Who are ‘Data Scientists’?
What happens if one hadoop client renames a file or a directory containing this file while another client is still writing into it?
How is the splitting of file invoked in Hadoop framework?
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