You submit a MapReduce job to a Hadoop cluster and notice that although the job was successfully submitted, it is not completing. What should you do?

You submit a MapReduce job to a Hadoop cluster and notice that although the job was successfully submitted, it is not completing. What should you do?
A . Ensure that the TaskTracker is running.
B . Ensure that the JobTracker is running
C . Ensure that the NameNode is running
D . Ensure that a DataNode is running

View Answer

Answer: A