Working of mapreduce
Describe working of the mapreduce.
Expert
The processing may takes place on data that are in the file system (un structured) or in the database (structured). The mapreduce framework primarily works over two steps:
a) Map step: During this step master node accepts an input (problem) and splits it into the smaller problems. Now node distributes small sub problems to the worker node so that they may solve the problem.
b) Decrease the step: Once the sub problem is solved by worker node, node returns a solution to master node that accepts all solutions of worker node and re-compiles them into the solution. This solution is for the input which was givne to the master node.
Define the term time sharing? Also write down the basic idea of the time sharing.
Explain what is meant by the term GPRS?
What do you mean by the term Spike? Illustrate in detail.
Briefly explain JSON?
Explain what do you meant by the Virtual IP (VIP)?
How can we avoid hazards?
Write the benefits of XML schema over the DTD.
Briefly explain about the XML schema?
Explain the term distributed system?
Specify when do the reducers play their role in the mapreduce task?
18,76,764
1959568 Asked
3,689
Active Tutors
1455248
Questions Answered
Start Excelling in your courses, Ask an Expert and get answers for your homework and assignments!!