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Can we deploy job tracker other than name node?
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If we want to copy 10 blocks from one machine to another, but another machine can copy only 8.5 blocks, can the blocks be broken at the time of replication?
Explain what is a task tracker in hadoop?
What does the high availability of a name-node means?
What is the difference between TextInputFormat and KeyValueInputFormat class?
Which modes can Hadoop be run in? List a few features for each mode?
Which scala library is used for functional programming?
If DataNode increases, then do we need to upgrade NameNode?
What does block mean?
How to add/delete a Node to the existing cluster?
Give a brief overview of Hadoop history?
What are the different commands used to startup and shutdown Hadoop daemons?
What sorts of actions does the job tracker process perform?
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