What are the hadoop's three configuration files?
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Can we do online transactions(oltp) using hadoop?
Explain the hadoop-core configuration?
What is a secondary namenode?
What is difference between regular file system and HDFS?
How hdfa differs with nfs?
What are watches?
What is nlineoutputformat?
What is a speculative execution in Apache Hadoop MapReduce?
How to change replication factor of files already stored in HDFS?
What stored in HDFS?
How many instances of a jobtracker run on hadoop cluster?
What is the InputFormat ?
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