Mention what are the data components used by Hadoop?
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How would you use Map/Reduce to split a very large graph into smaller pieces and parallelize the computation of edges according to the fast/dynamic change of data?
How many JVMs run on a slave node?
What are the functions of NameNode?
Name some companies that use Hadoop?
Explain what if rack 2 and datanode fails?
Define tasktracker.
What is Hadoop serialization?
Should we use RAID in Hadoop or not?
Hadoop Libraries and Utilities and Miscellaneous Hadoop Applications?
Explain the core components of hadoop?
What is IdentityMapper?
what is the default replication factor in HDFS?
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