Which one is default InputFormat in Hadoop ?
What is the difference between Gen1 and Gen2 Hadoop with regards to the Namenode?
What is Hadoop?
Explain what if rack 2 and datanode fails?
how is a file of the size 1 GB uncompressed
What is the main purpose of HDFS fsck command?
What are channel selectors?
What is the functionality of jobtracker in hadoop? How many instances of a jobtracker run on hadoop cluster?
What is difference between split and block in hadoop?
What is the difference between traditional RDBMS and Hadoop?
How to resolve IOException: Cannot create directory
What do the master class and the output class do?
What is the function of ApplicationMaster?