Which data storage components are used by hadoop?
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How to enable recycle bin in hadoop?
How would you tackle counting words in several text documents?
What is high availability in hadoop?
how would you modify that solution to only count the number of unique words in all the documents?
What is configuration of a typical slave node on Hadoop cluster? How many JVMs run on a slave node?
How will format the HDFS ?
What is the difference between rdbms and hadoop?
Are Namenode and job tracker on the same host?
What are active and passive "NameNodes"?
What is speculative execution in Hadoop?
Can the balancer be run while Hadoop is in use?
What Mapper does?
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