What is Hadoop serialization?
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what is the typical block size of an HDFS block?
What is version-id mismatch error in hadoop?
Is hadoop the future?
What is Rack Awareness in Apache Hadoop?
What is difference between secondary namenode, checkpoint namenode & backupnod secondary namenode, a poorly named component of hadoop?
What are the four characteristics of Big Data?
Can you explain how do ‘map’ and ‘reduce’ work?
What is a JobTracker in Hadoop? How many instances of JobTracker run on a Hadoop Cluster?
How can we change the split size if our commodity hardware has less storage space?
What is MapFile?
Do we need to give a password, even if the key is added in ssh?
Explain what is the purpose of RecordReader in Hadoop?
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