What Is Jobtracker?

1.	What Is Jobtracker?
Answer» JobTracker is a Hadoop SERVICE used for the processing of MapReduce jobs in the cluster. It submits and tracks the jobs to specific NODES having DATA. Only ONE JobTracker runs on single Hadoop cluster on its own JVM process. if JobTracker goes down, all the jobs halt. JobTracker is a Hadoop service used for the processing of MapReduce jobs in the cluster. It submits and tracks the jobs to specific nodes having data. Only one JobTracker runs on single Hadoop cluster on its own JVM process. if JobTracker goes down, all the jobs halt.

Answer»

JobTracker is a Hadoop SERVICE used for the processing of MapReduce jobs in the cluster. It submits and tracks the jobs to specific NODES having DATA. Only ONE JobTracker runs on single Hadoop cluster on its own JVM process. if JobTracker goes down, all the jobs halt.

JobTracker is a Hadoop service used for the processing of MapReduce jobs in the cluster. It submits and tracks the jobs to specific nodes having data. Only one JobTracker runs on single Hadoop cluster on its own JVM process. if JobTracker goes down, all the jobs halt.

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