In which location name node sores its metadata and why?
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What type of data hadoop can handle ?
is there a standard procedure to deploy hadoop?
How jobtracker assign tasks to the tasktracker?
How can one write custom record reader?
Is it possible to have hadoop job output in multiple directories?
How can native libraries be included in yarn jobs?
What is Mapper? How can we compress Mapper output in Hadoop?
Which modes can Hadoop be run in? List a few features for each mode?
Why is Data Block size set to 128 MB in Hadoop?
Can we change the file cached by distributed cache
What happens if one hadoop client renames a file or a directory containing this file while another client is still writing into it?
How does speculative execution work in Hadoop?
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