Many-task computing aims to bridge the gap between two computing paradigms, high throughput computing and high performance computing. Many task computing denotes high-performance computations comprising multiple distinct activities, coupled via file system operations. The aggregate number of tasks, quantity of computing, and volumes of data may be extremely large. Traditional techniques to supp...

A Hadoop Distributed File System (HDFS) is designed to store very large data sets reliably and to stream those data sets at high bandwidth to user applications. Metadata management is critical to distributed file system. In HDFS architecture, a single master server manages all metadata, while a number of data servers store file data. This architecture can’t meet the exponentially increased stor...

Present peer-to-peer (P2P) file distribution methods in mobile ad hoc networks (MANETs) can be divided into three categories: local broadcasting based advertisement (push) and discovery (pull)-based and contact-based. The first two techniques can simply be time consuming and low ability to accommodate when the demand grows higher. They are mainly developed for linked MANETs, in which end-to-end...

The design of a distributed video-on-demand system that is suitable for large video libraries is described. The system is designed to store 1000s of hours of video material on tertiary storage devices. A video that a user wants to view is loaded onto a video file server close to the users desktop from where it can be played. The system manages the distributed cache of videos on the file servers...

The design of a distributed video-on-demand system that is suitable for large video libraries is described. The system is designed to store 1000s of hours of video material on tertiary storage devices. A video that a user wants to view is loaded onto a video file server close to the users desktop from where it can be played. The system manages the distributed cache of videos on the file servers...

Today’s large demand for internet applications requires data to be transmitted in a safe and secure manner. Data transmission in public communication system insecure because of interception and improper manipulation by eavesdropper. So the solution for this problem is Steganography, Steganography is the art of hiding one medium of information into another medium. There are many approaches for h...

Textbooks play a pivotal role in language learning classrooms. The problem is, among a wide range of textbooks available, which one is more appropriate for a specific classroom and a group of learners. In order to evaluate ELT textbooks, theorists and writers have offered different kinds of evaluative frameworks based on a number of principles and criteria. This study evaluates one example of s...