Hadoop
- 2. What is Hadoop? From the Apache Hadoop open source design and process in large volume storage, data analysis is used. Is written in Java and Hadoop, not OLAP Batch/offline processing is used. Yahoo, Google, Facebook, Twitter, LinkedIn, and many other uses. Moreover, it is only in the unit by adding nodes can be measured. https://goo.gl/y4vZkg
- 3. Hadoop constituency HDFS: The Hadoop distributed file system. Information technology report released by Google and was established on the basis of HDFS. Files that will be broken into blocks, distributed architecture to store above. Thread: another resource negotiators work planning is used and managed, and anchoring. Map reduce: key value pair of Java programs use this data to help evaluate a parallel structure. Is the input data and Internet map service key to change the value calculated dataset. Output map is consumed by the task of reducing and then gives out the desired reducer. Output map is consumed by the task of reducing and then gives out the desired reducer. Hadoop common: the Java libraries are used to start the Hadoop and other Hadoop clusters are used. https://goo.gl/y4vZkg
- 4. The benefits of Hadoop Fast: data collection and their distribution helps the HDFS mapped fast recovery. Even the implementation tools. Often the same data processing time reduction in servers. Terabytes of data in minutes and can be implemented in beta bytes hours. Scalable: Hadoop cluster nodes in the unit just by adding has been expanded. Cost: the Hadoop open source and commodity hardware, in fact, in comparison with the relational database management system is therefore more cost effective to save data. You will be able to copy it with a resilient failure: HDFS data network has such a property, there is a network failure or a few knots. Then, use it to copy the Hadoop information. But in General, the data three times, Nehru organization photocopying factor. https://goo.gl/y4vZkg
- 5. HADOOP INSTALATION: Hadoop manufacturing environment, the necessary environment: UNIX, but it can be used for Windows using Cygwin. Java 1.6 or above in order to reduce the need for map programs. You need to install UNIX environment, tar ball Hadoop. Java SSH installation installation of the Hadoop installation and file system. https://goo.gl/y4vZkg
- 6. HADOOP MODULES: HDFS YARN MAP REDUCE https://goo.gl/y4vZkg