What is 'Key value pair' in HDFS?
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Is hadoop based on google mapreduce?
What are the problems with Hadoop 1.0?
What do you know about sequencefileinputformat?
What is HDFS Block size? How is it different from traditional file system block size?
What are the core components of Apache Hadoop?
How to restart Namenode?
Mention what are the data components used by Hadoop?
What is the purpose of button groups?
what should be the ideal replication factor in hadoop?
What is Distributed Cache?
How can you overwrite the replication factors in HDFS?
Is it possible to provide multiple inputs to hadoop? If yes, explain.