February 22nd, 2010The Power Behind the Hadoop Technology
Programming applications never fail to awe consumers. This is because a lot of people find it very amazing how a combination of codes would work out together as a particular program. Aside from this, they might also ask how these text commands can possibly even run the application. And these applications are the ones used by companies and used in order to run the business properly.
One of the applications used especially for search engines like Google is MapReduce. Basically, this is an application that makes indexing easier and faster than the usual. There are two processes involved in MapReduce. That is the Map where the information needed is searched and made into clusters. The next process, which is the Reduce, is where the information is sorted out and provided into the needed single values.
But aside from this technology, it is also important for people to know that the whole MapReduce process also requires Hadoop. Hadoop is a part of the Apache project that is built by a number of contributors throughout the world. This is a Java application framework that is used to support applications that would need a lot of data.
Upon hearing the term Hadoop, a lot of people may start to ask what it really is. What characteristics can describe it? Overall, there are three primary characteristics that it is comprised of that can help people understand it better. These characteristics will also be helpful in how it is connected with MapReduce in terms of running it.
The first characteristic is that Hadoop is considered to be data-parallel, but it should also follow a certain process or phase. In MapReduce for instance, it is considered parallelism with the two phases. But these two phases may not happen all at the same time. This means that it is mandatory that the Map process should finish first then the Reduce process will follow.
The second leading feature would be the ability of the Hadoop to process all the essential data in clusters or groups. As it was mentioned already, the Map should be completed first before you can proceed with the Reduce. Hadoop will be the one capable of moving the data into the system and freezing it for a particular amount of time until it is done with the mapping.
Finally, communications in between the data happens through the distributed file system. Latency is used in this process as I/O is working in getting the data around a number of data copies in a synchronized manner.
For indexing purposes, Hadoop is very essential in terms of framework to help in finishing the tasks properly. There are lots of computer experts that will see the relevance of this framework due to its amazing benefits.
Hadoop technology is a framework specifically designed to work with applications that require a large amount of data. Although it may seem complicated on the surface, working side by side with MapReduce, this technology ensures the tasks you have designated are completed properly.