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Over the last few years, MapReduce systems has become popular for processing large-scale data sets and are increasingly being used in web indexing, data mining, and machine learning. Unlike simple application scenarios such as word count, many applications of MapReduce exhibit strong skewed access patterns in real production environment, the data access is non-uniform, often only a small portion of...
Hadoop HDFS is an open source project from Apache Software Foundation for scalable, distributed computing and data storage. HDFS has become a critical component in today's cloud computing environment and a wide range of applications built on top of it. However, the initial design of HDFS has introduced a single-point-of-failure, HDFS contains only one active name node, if this name node experiences...
Traditional data protection technologies, such as remote mirroring, snapshot and backup, cannot completely solve virus attack, user error problems. Continuous data protection (CDP), capturing all data writes at file or block level, is an enabling technology to storage systems against malicious attacks or user mistakes, because it allows each block data to be undoable. Most of existing data protection...
As computing is becoming increasingly ubiquitous today, it would be very attractive for common computer users to access same personalized desktop environment on any compatible PC anytime and anywhere. This paper presents such a solution for Windows systems based on user-level virtualization technologies. Namely, the userpsilas data, applications and their configurations are stored on a portable USB...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.