Do we need to give a password, even if the key is added in ssh?
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Virtual Box & Ubuntu Installation?
What is the difference between hadoop and other data processing tools?
What is commodity hardware?
Data Engineer Given a list of followers in the format:123, 345234, 678345, 123…Where column one is the ID of the follower and column two is the ID of the followee. Find all mutual following pairs (the pair 123, 345 in the example above). How would you use Map/Reduce to solve the problem when the list does not fit in memory?
what is a datanode?
Is hadoop based on google mapreduce?
Did you ever ran into a lop sided job that resulted in out of memory error
What do you mean by taskinstance?
What is a namenode? How many instances of namenode run on a hadoop cluster?
Explain what happens in textinformat ?
what is the default replication factor in HDFS?
Which data storage components are used by hadoop?