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Pretty much all your load generation and monitoring tools do not work correctly. Those charts you thought were full of relevant information about how your system is performing are really just telling you a lie. Your sensory inputs are being jammed. To find out how listen to the Morpheous of
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When nanoseconds matter you have to pay attention to OS scheduling details. Mark Price, who works in the rarified high performance environment of high finance, shows how in his excellent article on Reducing system jitter. For a tuning example he uses the famous Disrupter inter-thread messaging library. The goal is
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Endings are often a time for reflection and from reflection often comes wisdom. That is the case for Kellan Elliott-McCrea, who recently announced he was leaving his job after five successful years as the CTO of Etsy. Kellan wrote a rather remarkable going away post: Five years, building a culture,
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This is a guest repost by Siddharth Anand, Data Architect at Agari, on Airbnb's open source project Airflow, a workflow scheduler for data pipelines. Some think Airflow has a superior approach. Workflow schedulers are systems that are responsbile for the periodic execution of workflows in a reliable and
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Peter Thiel, VC, PayPal co-founder, early Facebook investor, and most importantly, the supposed inspiration for Silicon Valley's intriguing Peter Gregory character, argues in his book Zero to One that a successful business needs to make a product that is 10 times better than its closest competitor. The title
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Daniel Bryant gave an energetic talk at Devoxx UK 2015 on lessons learned from over five years of experience with microservice based projects. The talk: The Seven Deadly Sins of Microservices: Redux (video, slides). If you don't want to risk your immortal API then be sure to avoid:
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This is a guest repost by Alex Petrov. Find the original article here. Most problem are quite straightforward to solve: when something is slow, you can either optimize it or parallelize it. When you hit a throughput barrier, you partition a workload to more workers. Although when you face problems
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This is aimed towards taking you through key architectural decisions which will make a social application a true next generation social product. The proposed changes addresses following attributes; a) availability b) reliability c) scalability d) performance and flexibility towards extensions (not modifications) Goals a) Ensuring that user’s content is
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This article originally appeared on ITHare.com. It's one article from an excellent series of articles: Part I. Client Side; Part IIa. Protocols and APIs; Part IIb; Protocols and APIs; Part IIIb. Server-Side (deployment, optimizations, and testing); Part IV. Great TCP-vs-UDP Debate; Part V. UDP; Part VI. TCP.
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Joseph Campbell: As Schopenhauer says, when you look back on your life, it looks as though it were a plot, but when you are into it, it’s a mess: just one surprise after another. Then, later, you see it was perfect. So, I have a theory that if you
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A little bit of follow up... In How Can We Build Better Complex Systems? Containers, Microservices, And Continuous Delivery I had a question about what Mary Poppendieck meant when she talked about poking complex systems. InfoQ interviewed Mary & Tom Poppendieck and found out the answer: Mary & Tom Poppendieck:
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Wait, you don't want 100% uptime? Who said such a crazy thing? Risk taker Urs Hölzle, senior VP for technical infrastructure, in Google's Infrastructure Chief Talks SDN: Whenever you try something new, there are going to be problems with it....We were willing to take the