How the HDFS Blocks are replicated?
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Why the name ‘hadoop’?
Why do we use Hadoop?
how to share the metastore within multiple users?
How to write a Custom Key Class?
What does job conf class do?
How to enable recycle bin in hadoop?
How many instances of a jobtracker run on hadoop cluster?
How does NameNode tackle DataNode failures?
Why are the number of splits equal to the number of maps?
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What is Apache Hadoop?
shouldn't DFS be able to handle large volumes of data already?
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