Hadoop MapReduce (Hadoop Map/Reduce) is a software framework for distributed processing of large data sets on compute clusters of commodity hardware. It is a sub-project of the Apache Hadoop project. The framework takes care of scheduling tasks, monitoring them and re-executing any failed tasks.
According to The Apache Software Foundation, the primary objective of Map/Reduce is to split the input data set into independent chunks that are processed in a completely parallel manner. The Hadoop MapReduce framework sorts the outputs of the maps, which are then input to the reduce tasks. Typically, both the input and the output of the job are stored in a file system.
- Hadoop Distributed File System (HDFS) -
The Hadoop Distributed File System (HDFS) is a sub-project of the Apache Hadoop project. This Apache Software Foundation project is designed to provide a fault-tolerant file system designed to run on commodity hardware. According to The Apache Software Foundation, the primary objective of HDFS is to store data reliably even in the presence of failures […]
- Commodity Cluster Computing
Refers to using a large number of low-cost, low-performance commodity computers working in parallel instead of using fewer high-performance and high-cost computers.
- Commodity Hardware
Computer hardware that is affordable and easy to obtain. Typically it is a low-performance system that is IBM PC-compatible and is capable of running Microsoft Windows, Linux, or MS-DOS without requiring any special devices or equipment.
- iPod Shuffle
The smallest device in Apple’s lineup of iPod digital portable music players. Now in its fourth generation, the iPod Shuffle features an all-metal, unibody design with an integrated belt clip for listening to the player in a hands-free fashion, as well as 2GB of flash memory storage and VoiceOver capabilities for audibly reporting song details […]
- Lightning Connector
An 8-pin power connector developed by Apple, Inc. in 2012 as a replacement for the traditional 30-pin connector previously used on Apple devices like the iPhone, iPad and iPod touch. The Lightning Connector is currently utilized by the iPhone 5, iPad Mini, fourth generation iPad (iPad 4), fifth generation iPod touch and seventh generation iPod […]