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What is Hadoop?
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Answer / sai krishna kesanapalli
Hadoop is an open source distributed processing framework that manages data processing and storing for big data applications running in clustered systems.
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Explain what is the purpose of RecordReader in Hadoop?
Mention what is the use of Context Object?
On what basis Namenode will decide which datanode to write on?
Do we need to give a password, even if the key is added in ssh?
Is hadoop required for data science?
What problems can be addressed by using Zookeeper?
Explain the features of stand alone (local) mode?
Can we call vms as pseudos?
What mechanism does hadoop framework provides to synchronize changes made in distribution cache during runtime of the application?
did you maintain the hadoop cluster in-house or used hadoop in the cloud?
What will you do when NameNode is down?
What is HDFS block size and what did you chose in your project?
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