EMERGING TRENDS IN SOFTWARE ENGINEERING
CLOUD COMPUTING
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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MapReduce
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Mapper
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TaskTracker
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JobTracker
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Detailed explanation-1: -node serves as the Slave and is responsible for carrying out the Tasks that have been assigned to it by the JobTracker. Explanation: TaskTracker node serves as the Slave and is responsible for carrying out the Tasks that have been assigned to it by the JobTracker.
Detailed explanation-2: -DataNode: DataNode is the slave node that stores all files and processes. Mapper: Mapper maps data or files in the DataNodes.
Detailed explanation-3: -DataNodesare the slave nodes in HDFS. It is a commodity hardware that provides storage for the data.
Detailed explanation-4: -The MapReduce framework consists of a single master JobTracker and one slave TaskTracker per cluster-node. The master is responsible for scheduling the jobs’ component tasks on the slaves, monitoring them and re-executing the failed tasks.