While playing with Hadoop, I wanted to check out how one can achieve doing multiple things on the same job. Given a record fed to the map function, it is quite often needed to do more than one calculations with the data on that record and emit the different results to the reducer(s). 1,178 more words
Tags » Hadoop
Replication is the process of storing copies of data on multiple nodes to ensure reliability and fault tolerance.
To set replication of an individual file to 4: 27 more words
Apache Sqoop is a connectivity tool to perform data transfer between Hadoop and traditional databases (RDBMS) which contains structured data. Using sqoop, one can import data to Hadoop Distributed File System from RDBMS like… 490 more words
The report “Big Data Market By Types (Hardware; Software; Services; BDaaS – HaaS; Analytics; Visualization as Service); By Software (Hadoop, Big Data Analytics and Databases, System Software (IMDB, IMC): Worldwide Forecasts & Analysis (2013 – 2018)” segments the global big data market in to various sub segments with in-depth analysis and forecasting of revenues. 527 more words
I am going to run some experiments with Hadoop YARN, and it was not that simple to compile, setup and run it. I will try to be brief and write the smallest recipe to compile (you can skip this part) and run Hadoop YARN in a cluster.
Seriously though, Big Data and it’s implications are probably the most relevant point of discussion in software engineering (web development in particular) today. It’s no secret that with a growing online community of more than 2 billion people, and a similar number using smartphones and taking their mobile application technology everywhere they go, the growth of the amount of data and metrics available regarding online presence and behavior is going absolutely crazy. 527 more words