Why is Data Block size set to 128 MB in Hadoop?
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In which directory hadoop is installed?
What does rack awareness mean?
Do we need to place 2nd and 3rd data in rack 2 only?
Clarify what a task tracker is in hadoop?
If the hadoop administrator needs to make a change, which configuration file does he need to change?
Where are hadoop’s configuration files located and list them?
Give examples of some companies that are using Hadoop structure?
Which scala library is used for functional programming?
Why is Data Block size set to 128 MB in Hadoop?
Mention how hadoop is different from other data processing tools?
What is Fault Tolerance?
How to handle bad records during parsing?
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