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Applications can use the _________ provided to report progress or just indicate that they are alive.

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Applications can use the _________ provided to report progress or just indicate that they are alive.

(a) Collector

(b) Reporter

(c) Dashboard

(d) None of the mentioned

This question was posed to me in class test.

This is a very interesting question from Java Interface topic in division HDFS – Hadoop Distributed File System of Hadoop

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Right choice is (b) Reporter

To explain I would say: In scenarios where the application takes a significant amount of time to process individual key/value pairs, this is crucial since the framework might assume that the task has timed-out and kill that task.

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