How to Optimize the Hadoop cluster for high performance?

A Hadoop cluster is the central part of the Hadoop framework that includes agroup of systems linked together through LAN. This is useful to store and process big data sets. Moreover, the Hadoop cluster includes several commodity hardware linked together. They communicate with a high-end system that acts as a master. Installation of the Hadoop cluster within production is like getting into abattlefield. Besides, a Hadoop admin needs to tune the...

Read More

Hadoop MapReduce partition in Hadoop administration

MapReduce is the heart of Hadoop programming environment. Hadoop MapReduce ensures massive scalability in the Hadoop cluster, which consists of many servers. People who are familiar with the clustered scale-out data processing framework will consider MapReduce concepts easier to understand in Hadoop. It might not be as easy for new entrants to the platform but Hadoop MapReduce features will help...

Read More

IOS memory management

Memory management is very important in any application, particularly in IOS applications that have memory and other constraints. It refers to ARC, MRC, reference types, and value types. Memory leaks and App crashes are all too common in apps due to poor IOS memory management.Automatic Counting for References: ARC in IOS memory managementIn IOS memory management Swift this is conceptually the same as in Objective-C. ARC keeps track of strong references...

Read More

Explain Machine Learning with Spark MLlib? In big data and hadoop

Machine learning is a part of Artificial Intelligence that facilitates systems to buildvarious data models to automate the decision-making process. Spark MLlib(Machine Learning Library) is an ML component that can scale computation forML algorithms. Moreover, Spark MLlib is Sparks’s core module that providespopular ML algorithms and applications. The Spark MLlib offers fast, easy, and scalable deployments of different kinds ofmachine learning components. Spark...

Read More

Android - XML Parser

XML stands for Extensible Mark-up Language.XML is a very popular format and commonly used for sharing data on the internet. This chapter explains how to parse the XML file and extract necessary information from it. Android provides three types of XML parsers which are DOM,SAX and XMLPullParser. Among all of them android recommend XMLPullParser because it is efficient and easy to use. So we are...

Read More