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Introduction to Hadoop, MapReduce and HDFS for Big Data Analytics
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Introduction to Hadoop, MapReduce and HDFS for Big Data Applications
Task Tracker Each Task Tracker is responsible to execute and manage the individual tasks assigned by Job Tracker. Task Tracker also handles the data motion between the map and reduce phases. One Prime responsibility of Task Tracker is to constantly communicate with the Job Tracker the status of the Task. If the JobTracker fails to receive a heartbeat from a TaskTracker within a specified amount of time, it will assume the TaskTracker has crashed and will resubmit the corresponding tasks to other nodes in the cluster.
Thank you! Rebecca Tho, Hadoop Developer AT kYVOS iNSIGHTS HTTP://WWW.KYVOSINSIGHTS.COM