What Is The MapReduce Framework Used For? (Greg Black)
Feb 28, 2010
Google developed the MapReduce programming framework as a means to process massive amounts of data in a fast and effective manner. Originally it was created to help deal with so much data that it had to be spread out across thousands of individual machines.
The data processing doesn't have to take place on such a huge scale, though. Individuals and smaller companies can use this framework to organize their data and discover some very important relationships within the data set. MapReduce functionality can help you quickly analyze all your data, no matter how much you are dealing with.
It doesn't matter if you are working with a large or small data set, you can use different MapReduce applications to query the system and receive the information you can actually work with. Many companies use MapReduce for fraud detections, graph analysis, exploring sharing and searching behavior of the customers, and monitoring data transfers. These activities were traditionally hard to discover, especially in data sets that continued to grow.
A MapReduce job will work by splitting the input data into more manageable jobs that can be more easily processed by the assigned map task, and it can do it in a completely parallel manner. The programming framework will output the maps into a reduce task, which is one of the best ways to make sure you use all the resources of a large, distributed system.
When the system has split up the information and it has been reduced, users can employ MapReduce functionality to handle the rest of the process. This includes the scheduling, the monitoring, and any necessary re-executions of failed tasks. When these tasks can be automated, it will lighten the burden of your data mining activities.
One possibility is to use the Hadoop API to interact with MapReduce functionality. This will help you transfer all data and job configurations correctly and consistently throughout the whole system. The API is a great way for companies to develop new and effective methods to research or organize their data.
By using the Apache Hadoop API, you will be able to submit and configure your jobs with the job scheduler with ease. The scheduler with then distribute the appropriate tasks to the right worker systems within the cluster, as well as all the necessary monitoring tasks and produce various diagnostic and status reports as you go.
The functionality of MapReduce applications makes it easy to process data even across thousands of different machines. Whether you intend to track customer behavior or simply transfer data from one system to another, this framework is a good option for many companies.
About the AuthorWorking side by side with MapReduce, Hadoop API technology is a framework designed to support applications that require a lot of data. This technology can be confusing at times but ensures the work is completed correctly..