China 
Africa 
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Preparing to Publish Your Podcast
Published in Michael W. Geoghegan, Greg Cangialosi, Ryan Irelan, Tim Bourquin, Colette Vogele, Podcast Academy™: The Business Podcasting Book, 2012
Content delivery networks (CDNs) are companies that have a series of web servers strategically located in order to quickly deliver the same content to anyone with internet access worldwide. Initially, it’s not required that you host your files on a major CDN, unless you are a large corporation that needs a powerful global infrastructure for all of your web properties and content. For podcasting, this means that audio files won’t be delivered from just one server in one location, but instead from multiple servers in multiple locations. What’s the advantage of this? Speed, reliability, and cost. Because a CDN has so many servers in different locations, costs to deliver content can be controlled by serving content from locations that are closer to where the content is being requested.
Introduction
Published in Joseph Y.-T. Leung, Handbook of SCHEDULING, 2004
It is of natural interest to ask about the scheduling algorithms used by current server technology. Unfortunately, because of the messiness of real software, it is often debatable what the best abstraction of the implemented algorithm is. Let us give a couple of examples. Currently the most commonly used web server software is Apache. The underlying scheduler for the Apache is usually described to be FIFO. But it would probably be more accurate to say that threads are allocated to pending requests on a FIFO basis, and then threads are scheduled using another algorithm. Often it is reported that the underlying process scheduling algorithm for the Unix and Windows NT operating systems is MLF. But in Unix and NT there are only a fixed number of queues, where the lowest priority queue may be scheduled using RR. Thus whether the underlying scheduler is best viewed as MLF or RR depends on the relationship between the job sizes and the largest job quantum.
The Presentation Tier
Published in David Austerberry, Digital Asset Management, 2012
So the information portal is comprised of a number of physical servers, running a number of services: file transfer protocol (FTP) server, web server, DNS, and media server. Each service usually runs on separate machines for optimum performance and scalability. To apportion the requests across several web servers, load balancing is used.
A scalable cloud-based cyberinfrastructure platform for bridge monitoring
Published in Structure and Infrastructure Engineering, 2019
Seongwoon Jeong, Rui Hou, Jerome P. Lynch, Hoon Sohn, Kincho H. Law
A web server is a computer system that processes clients requests and returns responses to the corresponding clients. The cloud-based cyberinfrastructure platform deploys web servers to host the RESTful web services. Given the high volume and high velocity of SHM data, a web server that can process intensive input/output (I/O) requests is needed. The cyberinfrastructure platform employs Node.js,8 a server-side JavaScript runtime environment. Based on the non-blocking I/O feature, Node.js is suitable for intensive I/O processing (Chaniotis, Kyriakou, & Tselikas, 2015; Lei, Ma, & Tan, 2014).