What is the use of recordreader in hadoop?
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Clarify how job tracker schedules an assignment?
What is the characteristic of streaming API that makes it flexible run MapReduce jobs in languages like Perl, Ruby, Awk etc.?
What is TaskTracker?
What is a single point of failure in Hadoop 1 and how is it resolved in Hadoop 2?
List out the some common problems faced by data analyst?
How can we create a hadoop cluster from scratch?
How namenode handles data node failures?
Give me examples of unstructured data?
In hadoop_pid_dir, what does pid stands for?
What are the most common OutputFormat in Hadoop?
Mention what job does the conf class do?
Which directory does hadoop install to?
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