Is secondary namenode a substitute to the namenode?
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What do you know about nlineoutputformat?
Where is the Mapper Output intermediate kay-value data stored ?
Is hadoop the future?
How to resolve ioexception: cannot create directory, while formatting namenode in hadoop?
What is configuration of a typical slave node on Hadoop cluster? How many JVMs run on a slave node?
Is it possible to provide multiple inputs to hadoop? If yes, explain.
What do you mean by taskinstance?
What platform and java version are required to run hadoop?
What is a speculative execution in Apache Hadoop MapReduce?
How to change replication factor of files already stored in HDFS?
What happens to job tracker when namenode is down?
Define tasktracker.
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