What is the hadoop-core configuration?
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What does the mapred.job.tracker command do?
what is next step after mapper or maptask?
Which are the three modes in which hadoop can be run?
Mention what is the data storage component used by hadoop?
How do you overwrite replication factor?
Explain how can we check whether namenode is working or not?
What is JPS? Why is it used in Hadoop?
Explain how can you debug hadoop code?
Doesn’t google have its very own version of dfs?
What is JobTracker?
Why is Data Block size set to 128 MB in Hadoop?
Is it possible to have hadoop job output in multiple directories? If yes, how?
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