Did you ever ran into a lop sided job that resulted in out of memory error
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In cloudera there is already a cluster, but if I want to form a cluster on ubuntu can we do it?
How the HDFS Blocks are replicated?
What is the sequencefileinputformat in hadoop?
Explain use cases where SequenceFile class can be a good fit?
Why do we use Hadoop?
What are the port numbers of namenode, job tracker and task tracker?
Can we have multiple entries in the master files?
Explain the use of tasktracker in the hadoop cluster?
What mechanism does hadoop framework provides to synchronize changes made in distribution cache during runtime of the application?
What is a Combiner?
What is the purpose of RawComparator interface?
Define a datanode?
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