What Makes Hadoop Tick?

By Amy Benson

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.

For leading search engines like Google, they utilize MapReduce for indexing purposes. This is a dynamic application that can improve the task of searching in a faster rate than it was before. MapReduce is made up of two important parts which are called Map and Reduce. Map is the data processing where the information would be assigned to be gathered in the form of clusters. Reduce would separate the date to be able to arrive at an individual value.

Nevertheless, Hadoop is also very helpful to MapReduce. It serves a very crucial role in the process of the MapReduce. Hadoop is included in the project of Apache that was made by various contributors worldwide. It is a great example of Java software skeleton that can be beneficial for the processing of software that is data-extensive.

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 top characteristic of Hadoop is that it is data-parallel but should still go through process or phase. For example, there could be parallelism that may occur with the two processes. It is very important to take note that it will not be possible for this to occur simultaneously. This would just imply that it is essential for the Map to be completed first before the Reduce phase will occur.

The second characteristic of Hadoop is that it will process all the vital data in groups or batches. As stated above, Map should be completed before Reduce will be launched. Hadoop will help the data be frozen for sometime and wait until mapping is complete.

The final characteristic would be the distribution file system needed for the communication of the data. The response time for this phase may take some time since the acquisition of data is needed to have the data to be moved around inside the system as it duplicates with synchronicity.

For indexing, Hadoop is a very important framework to help the tasks done appropriately. There are now a number of computer professionals that finds the importance of this framework because of the wonders that it can do for indexing. - 32198

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