What is Hadoop MapReduce?

1 year ago
Cloud Computing

The Map/Reduce framework has master/slave architecture. The master, called JobTracker, is responsible for (a) querying the NameNode for the block locations, (b) scheduling the tasks on the slave which is hosting the task’s blocks, and (c) monitoring the successes and failures of the tasks. The slaves, called TaskTracker, execute the tasks as directed by the master.

Raju Singhaniya
Oct 14, 2021
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