Define tasktracker.
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Who is a 'user' in HDFS?
What is Apache Hadoop? Why is Hadoop essential for every Big Data application?
Can the balancer be run while Hadoop is in use?
How to keep HDFS cluster balanced?
What are the main components of a Hadoop Application?
What does job conf class do?
If a data Node is full how it's identified?
What are the hadoop's three configuration files?
Is fs.mapr.working.dir a single directory?
Explain the difference between gen1 and gen2 hadoop with regards to the namenode?
Explain the Job OutputFormat?
What are the four characteristics of Big Data?