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Our industry continues to hurt from the fact that one year is single worst length of time for certificate expirations. Too short to be rare and ignorable, and too long to build an operational muscle around renewing them.
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The rain outside my office window is flying horizontally. I'm pretty sure the water is not supposed to do that.
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Joe Magerramov proslijedio/la je Tweet
Astronomers' Concerns Intensify With SpaceX's Latest Starlink Launch https://www.forbes.com/sites/startswithabang/2020/01/30/dangers-to-astronomy-intensify-with-spacexs-latest-starlink-launch/ … 60 new satellites. Every 2 weeks, launch-permitting. 0 within acceptable limits. 60 maximal offenders. Astronomers do not consent to
@SpaceX's unfixed Starlinks.Prikaži ovu nitHvala. Twitter će to iskoristiti za poboljšanje vaše vremenske crte. PoništiPoništi -
Hello Austin. I hear ya’all like Giants fans here.
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Joe Magerramov proslijedio/la je Tweet
Two fairly recent blog posts on doing Transit Gateway filtering and centralizing of internet traffic worth checking out: https://aws.amazon.com/blogs/networking-and-content-delivery/securing-egress-using-ids-ips-leveraging-transit-gateway/ … andhttps://aws.amazon.com/blogs/networking-and-content-delivery/creating-a-single-internet-exit-point-from-multiple-vpcs-using-aws-transit-gateway/ …
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I’m likely super late to the party, but our family just discovered
@codeorg and my 6 year-old has been completely engrossed. Very well made, kudos.Hvala. Twitter će to iskoristiti za poboljšanje vaše vremenske crte. PoništiPoništi -
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Maybe it’s the Stockholm syndrome speaking, but Frozen 2 soundtrack is pretty good.
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One thing I would’ve liked to see is discussion of the impact of this strategy on ability to perform RCU synchronization.
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One paper I really enjoyed in the last few years is Cuckoo++ Hash Tables: https://arxiv.org/pdf/1712.09624.pdf … Even though I haven’t used it in production, some of the ideas in the paper are pretty interesting. And it was the first thing I tried to build as I was learning Rust.
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Multiple choice question on my daughter’s test: “Pick the most modern item.” The right answer was computer, but it hit me how confusing that question must be for her. To her, computers are ancient.
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Joe Magerramov proslijedio/la je Tweet
Our CACM paper on formal methods at AWS is on Hacker News this morning. It's always great to see interest in formal methods in general, and TLA+ in particular.
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Unfortunately, this doesn’t work for every system. Some examples are systems where individual nodes have high variability in goodput due to customer behavior (e.g. storage nodes) or where much more care needs to be taken before taking a node out of service.
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A central observer can then monitor each node for this metric, eagerly taking a node out of service when its rate drops (after applying a central throttle to avoid mass shut downs due to false positives.).
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Because of that, the mechanism I tend to like for for detecting such failures is drop in the rate at which failing node performs useful work (i.e. Goodput). For a web server, this could be HTTP 200s, for a network switch this could be packets processed.
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There is a nuance though, even clients themselves rarely observe such failures cleanly, so strategies like retries dont always help either. In my experience, many gray failures manifest themselves as performance problems. A node continues accepting work, but its throughput drops.
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Finally got around to reading https://www.microsoft.com/en-us/research/wp-content/uploads/2017/06/paper-1.pdf …. I like paper’s definition of gray failures as “differential observability”. It hits directly on the practical aspect of gray failures: they are most impactful when clients observe problems, while the health checker does not.
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This is going to be a blast from the far, far past. Does anybody remember name of the interactive assembler that shipped with MS-DOS that allowed you to examine CPU registers and execute arbitrary x86 instructions one at a time. Is there a modern day equivalent?
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Just stumbled onto our waterproof camera case. We bought it 6 years ago to take underwater pictures, yet either forgot to pack it or were unable to find it each time we went on a beach vacation. I think this time I will definitely, totally, remember where it is next time we go.
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So I have to root for Jason Garrett now... That’ll feel pretty weird,
@DeekoVB5Hvala. Twitter će to iskoristiti za poboljšanje vaše vremenske crte. PoništiPoništi
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