What is the InputFormat ?
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What is the meaning of speculative execution in Hadoop? Why is it important?
How to come out of the insert mode?
How can I restart namenode?
How to enable recycle bin in hadoop?
How we can change Replication factor when Data is on the fly?
Command to format the NameNode?
how is a file of the size 1 GB uncompressed
what is the default replication factor in HDFS?
What is Schema on Read and Schema on Write?
Who invented hadoop?
What is the difference between rdbms and hadoop?
explain Metadata in Namenode?