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'All Things Distributed. Werner Vogels weblog on building scalable and robust distributed systems. Expanding the Cloud â?? The Amazon Simple Workflow Service. By Werner Vogels on 22 February 2012 12:01 AM. | Permalink. | Comments (). Today AWS launched an exciting new service for developers: the Amazon Simple Workflow Service. Amazon SWF is an orchestration service for building scalable distributed applications.
Java was initially designed as a safe, managed environment. Nevertheless, Java HotSpot VM contains a “backdoor” that provides a number of low-level operations to manipulate memory and threads directly. This backdoor – sun.misc.Unsafe – is widely used by JDK itself in the packages like java.nio or java.util.concurrent. It is hard to imagine a Java developer who uses this backdoor in any regular development because this API is extremely dangerous, non portable, and volatile.
The Financial Times recently ran analysis and guest op-eds that sought to explain value in and from IT. One went as far as to challenge whether the corporate CIO has a future. Each is a new take on an old theme, echoing one part of the contradiction that has riddled every business with a captive technology department: we want to minimize how much we spend on IT, and we want IT to be a source of innovation.
Whether or not to design in the browser is an often debated subject. The latest discussion seems to be prompted, in part, because of the recent Responsive Summit (by the way, if you haven’t done so already, be sure to check out a few recaps of the day ). Mark Boulton just put his thoughts to screen with a post entitled “Responsive Summit: The One Tool”.
Don’t trust hardware or software; then you can build trustworthy hardware and software. James Hamilton on how to write reliable software in a world where anything that can fail, will fail.
'All Things Distributed. Werner Vogels weblog on building scalable and robust distributed systems. Driving Storage Costs Down for AWS Customers. By Werner Vogels on 06 February 2012 09:00 PM. | Permalink. | Comments (). One of the things that differentiates Amazon Web Services from other technology providers is its commitment to let customers benefits from continuous cost-cutting innovations and from the economies of scale AWS is able to achieve.
Today AWS launched an exciting new service for developers: the Amazon Simple Workflow Service. Amazon SWF is an orchestration service for building scalable distributed applications. Often an application consists of several different tasks to be performed in particular sequence driven by a set of dynamic conditions. Amazon SWF makes it very easy for developers to architect and implement these tasks, run them in the cloud or on premise and coordinate their flow.
When you’re building a responsive site, there will undoubtedly be times when you need to change a background image, or when you need to hide an image for a specific resolution range. Unfortunately if you’re not careful, this can lead to multiple images being downloaded even when they aren’t being used. A few people—including Jason Grigsby , Greg Rewis and Aaron Mentele —have done some excellent testing about how images are downloaded when media queries are involved.
When you’re building a responsive site, there will undoubtedly be times when you need to change a background image, or when you need to hide an image for a specific resolution range. Unfortunately if you’re not careful, this can lead to multiple images being downloaded even when they aren’t being used. A few people—including Jason Grigsby , Greg Rewis and Aaron Mentele —have done some excellent testing about how images are downloaded when media queries are involved.
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