What is HDFS Block size? How is it different from traditional file system block size?
Why do we need a password-less ssh in fully distributed environment?
Can we have multiple entries in the master files?
What is the port number for NameNode
what is meaning Replication factor?
Does hadoop always require digital data to process?
How can you overwrite the replication factors in HDFS?
What if rack 2 and datanode fails?
What is Rack Awareness in Apache Hadoop?
What is the purpose of RawComparator interface?
Explain the hadoop-core configuration?
What is a Combiner?
what is difference between int and intwritable?