What is the difference between Gen1 and Gen2 Hadoop with regards to the Namenode?
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Does the hdfs client decide the input split or namenode?
What is column families? What happens if you alter the block size of ColumnFamily on an already populated database?
What are the modes in which Apache Hadoop run?
What are the default configuration files that are used in hadoop?
What platform and java version are required to run hadoop?
What are the additional benefits YARN brings in to Hadoop?
What is a 'block' in HDFS?
Explain how can we change the split size if our commodity hardware has less storage space?
What is the purpose of button groups?
Did you ever ran into a lop sided job that resulted in out of memory error
What is the function of ApplicationMaster?
Explain the use of .mecia class?
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