On a cluster running MapReduce v1 (MRv1), the value of the mapred.tasktracker.map.tasks.maximum configuration parameter in the mapred-site.xml file should be set to:

Question

Options

• AHalf the number of the maximum number of Reduce tasks which can run simultaneously on an individual node.
• BThe maximum number of Map tasks can run simultaneously on an individual node.
• CThe same value on each slave node.
• DThe maximum number of Map tasks which can run on the cluster as a whole.
• EHalf the number of the maximum number of Reduce tasks which can run on the cluster as a whole.

• A
  11% (5)
• B
  77% (34)
• C
  5% (2)
• D
  5% (2)
• E
  2% (1)

Explanation

mapred.tasktracker.map.tasks.maximum Range: 1/2 * (cores/node) to 2 * (cores/node) Description: Number of map tasks to deploy on each machine.

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