I got an email recently which asked the question, “If our world is really looking down the barrel of environmental catastrophe, how do I live my life right now?” This motto — shorthand for Gandhi’s…
Facebook revealed some big, big stats on big data to a few reporters at its HQ today, including that its system processes 2.5 billion pieces of content and 500+ terabytes of data each day. It’s pulling in 2.7 billion Like actions and 300 million photos per day, and it scans roughly 105 terabytes of data each half hour. Plus it gave the first details on its new “Project Prism”.
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February 17th, 2008 A 'problem' with the Mongrel/Rails platform A request comes in to the web server, and if it's dynamic, falls down to a waiting mongrel process. Mongrel calls Rails which wraps a big lock around most of the request/response cycle so the mongrel thats serving the request has to wait for a response from Rails to unlock and start serving other requests. This is the Blocked Thread stability anti-pattern that Michael Nygard talks about in Release It!. The problem is that Nginx or Apache doesn't know that a mongrel is blocked and keeps blindly sending requests. Thats means that even a single blocked mongrel will result in some slow responses for requests that come in to that same mongrel. Cut the Request Fat And one way to do that is to use the "Skinny Request, Fat Backend" principle. What that means in practical terms is pretty simple: Do as little as possible inside of the Request/Response cycle.
M. Bilal, and S. Kang. (2017)cite arxiv:1704.02683Comment: This article is accepted for the publication in Cluster Computing-The Journal of Networks, Software Tools and Applications. Print ISSN 1386-7857, Online ISSN 1573-7543.
Y. Hayduk, A. Sobe, and P. Felber. Distributed Applications and Interoperable Systems, volume 9038 of Lecture Notes in Computer Science, Springer, (2015)