What does the command mapred.job.tracker do?
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Mention what is the number of default partitioner in Hadoop?
How to come out of the insert mode?
What is the difference between Gen1 and Gen2 Hadoop with regards to the Namenode?
Is it possible to provide multiple inputs to hadoop? If yes, explain.
Explain why do we need hadoop?
How many instances of tasktracker run on a hadoop cluster?
How indexing is done in HDFS?
What if a namenode has no data?
Explain the basic difference between traditional rdbms and hadoop?
On which port does ssh work?
What is a speculative execution in Apache Hadoop MapReduce?
Why do we use Hadoop?
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