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I’d previously mentioned that I had an upcoming work trip to Zürich, and in keeping with my usual blogging tardiness, that trip was two months ago. Actually, I (perhaps ironically) got back from India a few weeks ago, so expect that post soon in a few millennia. But anyway, let’s talk about Switzerland: a country of cheese, chocolates, and armed neutrality . × Waiting to leave SFO on a gloomy evening. ....
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I’d previously mentioned that I had an upcoming work trip to Zürich, and in keeping with my usual blogging tardiness, that trip was two months ago. Actually, I (perhaps ironically) got back from India a few weeks ago, so expect that post soon in a few millennia. But anyway, let’s talk about Switzerland: a country of cheese, chocolates, and armed neutrality . × Waiting to leave SFO on a gloomy evening. ....
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Monitoring and alert system using Graphite and Cabot
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engineering.hackerearth.com
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9 years ago
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eng
Introduction The infrastructure that powers a product and all of the services that it provides can be huge and complex because the product is scaled to serve millions of users. In most cases, each service might depend on various components for seamless functioning. With a product that houses a variety of features with critical infrastructure components and services powering these features, it becomes vital to monitor these components and s....
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From now and then, I found myself having to write some mechanical and repetitive code. The usual solution for this is to write a code generator; for instance in the form of a ppx rewriter in the case of OCaml code. This however comes with a cost: code generators are harder to review than plain code and it is a new syntax to learn for other developers. So when the repetitive pattern is local to a specific library or not widely used, it is of..
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From now and then, I found myself having to write some mechanical and repetitive code. The usual solution for this is to write a code generator; for instance in the form of a ppx rewriter in the case of OCaml code. This however comes with a cost: code generators are harder to review than plain code and it is a new syntax to learn for other developers. So when the repetitive pattern is local to a specific library or not widely used, it is of..
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I’m happy to announce that GuvScale — our service for autoscaling Heroku background worker dynos — is now available in a public beta . If you’re using RabbitMQ for distributing work to background dynos hosted by Heroku, GuvScale can monitor the queues for you and scale the number of workers up and down automatically. This gives two big benefits: Consistent processing times by scaling dynos up to meet peak load Cost savings by....
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Microservices is the new fancy way of doing applications. Yet, most companies still have big and old monoliths in production. In fast evolving software of this size, it’s usual to have lines of code which are never executed in production. Production code coverage reports can help us find those lines.
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One of the key tenets of snaps is that they bundle their dependencies. The fact that they’re self-contained helps their transactional-ness: upgrading or rolling back is essentially just a matter of unmounting one snap and mounting the other. However, historically this was also one of their key downsides: every snap must be standalone. Fortunately, snapd v2.0.10 saw the addition of a content interface that could be used by a producer snap to..
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Hi, friends! Sorry for taking too long to post something new, but I have come back from the UK recently, where I've had a great day with some friends at Voxxed Days Bristol. Recently, I have also ...
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Hi, friends! Sorry for taking too long to post something new, but I have come back from the UK recently, where I've had a great day with some friends at Voxxed Days Bristol. Recently, I have also ...
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ember-i18n-changeset-validations is an Ember addon providing internationalized validation messages to ember-changeset-validations. This addon adds the ability to translate ember-changeset-validation messages using the ember-i18n addon. Available on NPM at ember-i18n-changeset-validations and on github at ember-i18n-changeset-validations .
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I had an inherited client project running on an EC2 Ubuntu instance like a champ. The system had racked up nearly 900 days of uptime! Not a lot of traffic but still it was running nginx with TLS, a node/express app, and mysql with pretty much 100% uptime for over 2 years. As I went to do some routine TLS certificate maintenance, the system started throwing "No Space Left On Device" errors. I was confused because the root filesystem still ....
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Peter Benjamin (@pmbenjamin) is a Senior Software Engineer on the Cyber Security Team at Intuit. Peter recently published a fantastic VS Code plugin that brings Snyk test results right into the editor. We decided to ask him a few questions about the plugin to learn more.
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One Cerner Associate's Contributions in the Tech Industry
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engineering.cerner.com
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9 years ago
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eng
Background: Micah is currently a software architect in Population Health Development in Healthe Intent Development at Cerner. In 2013, Micah Whitacre received committer status on the Apache Crunch project, and is now a Project Management Committee (PMC) member of the project. How has Cerner been been involved in Apache Crunch? In 2012 and 2013, Cerner started using this project within several solutions. We also wanted to give back to the co..
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This year marks Canada’s 150th anniversary (1867-2017), and while there are some cool events happening this year (e.g. National Parks have free admission), there really isn’t a lot of hoopla surrounding it. However, I have very fond memories of Canada’s 125th anniversary in 1992, because that’s when I got to go to Alberta as part of a student enrichment event. In the summer of 1992, the Canadian government hosted an event called Futuret..
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This year marks Canada’s 150th anniversary (1867-2017), and while there are some cool events happening this year (e.g. National Parks have free admission), there really isn’t a lot of hoopla surrounding it. However, I have very fond memories of Canada’s 125th anniversary in 1992, because that’s when I got to go to Alberta as part of a student enrichment event. In the summer of 1992, the Canadian government hosted an event called Futuret..
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I’ve been attending the Bosch Connected Experience IoT hackathon this week at Station Berlin. Bosch brought a lot of different devices to the event, all connected to send telemetry to Eclipse Hono . To make them more discoverable, and enable rapid prototyping I decided to expose them all to Flowhub via the MsgFlo distributed FBP runtime . The result is msgflo-hono , a tool that discovers devices from the Hono backend and exposes ....
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I’ve recently dipped my toes into Android development to see the differences in environment and tooling as compared to iOS development. While I haven’t done much as of yet, I hope to ship some Android apps in the future alongside some iOS ones. I figured it was time to understand the platform so that I can better relate to the woes of Android development. Disclaimer Note that this is entirely opinion based, and these are only initial opin....
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Programs that have saved me 100+ hours by automating repetitive tasks
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danielsada.tech
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9 years ago
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eng
Since I wrote this, there has been two HN threads on this blog, they contain super useful links and programs, go see them! Thank you for reading! https://news.ycombinator.com/item?id=13887237 https://news.ycombinator.com/item?id=22849208 Along the year I’ve been working on several web platforms where repetitive tasks are usually the norm. From batch optimizing a thousand images, to changing from this obscure format to csv or json. What if y..
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I’m happy to announce our next public tech talk , called Seven Implementations of Incremental , on Wednesday, April 5th, presented by yours truly. You can register here .
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I’m happy to announce our next public tech talk , called Seven Implementations of Incremental , on Wednesday, April 5th, presented by yours truly. You can register here .
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Programs that have saved me 100+ hours by automating repetitive tasks
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danielsada.tech
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9 years ago
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eng
Since I wrote this, there has been two HN threads on this blog, they contain super useful links and programs, go see them! Thank you for reading! https://news.ycombinator.com/item?id=13887237 https://news.ycombinator.com/item?id=22849208 Along the year I’ve been working on several web platforms where repetitive tasks are usually the norm. From batch optimizing a thousand images, to changing from this obscure format to csv or json. What if y..
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We’ve all been there - sitting in front of a piece of paper, pen in hand, ready to write, and nothing to write. Or, maybe in the digital age, you’re sitting in front of the computer with hands placed properly on the keyboard. And then, nothing except writer’s block.
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Last month, we added a high-severity Prototype Override Protection Bypass vulnerability in the qs package to our database. The fix was released in updated versions of the library about a week ago. This post explains the vulnerability and how to mitigate it.
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At Localytics we have petabytes of data that needs to be served at low latencies and we use Snowflake in our mix of data processing technologies. Snowflake, like many other MPP databases, has a way of partitioning data to optimize read-time performance by allowing the query engine to prune unneeded
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Problem: You have a catalog of items with discrete ratings (thumbs up/thumbs down, or 5-star ratings, etc.), and you want to display them in the “right” order. Solution: In Python ''' score: [int], [int], [float] -> float Return the expected value of the rating for an item with known ratings specified by `ratings`, prior belief specified by `rating_prior`, and a utility function specified by `rating_utility`, assuming the ratings are a mult..
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Problem: You have a catalog of items with discrete ratings (thumbs up/thumbs down, or 5-star ratings, etc.), and you want to display them in the “right” order. Solution: In Python ''' score: [int], [int], [float] -> float Return the expected value of the rating for an item with known ratings specified by `ratings`, prior belief specified by `rating_prior`, and a utility function specified by `rating_utility`, assuming the ratings are a mult..
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Problem: You have a catalog of items with discrete ratings (thumbs up/thumbs down, or 5-star ratings, etc.), and you want to display them in the “right” order. Solution: In Python ''' score: [int], [int], [float] -> float Return the expected value of the rating for an item with known ratings specified by `ratings`, prior belief specified by `rating_prior`, and a utility function specified by `rating_utility`, assuming the ratings are a mult..
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UPDATE(2019-05-19 Sun): Plan A and B use options no longer available since the recent changes to remove all options from Homebrew/homebrew-core formulae . See Plan C. Plan A Install gnuplot Qt If you have the resources, you can try the Qt flavor. You need at least 15GB to download and a long build. Ran out of space on my Macbook Air. Aborted. brew install gnuplot --with-qt Plan B Install xquartz brew install Caskroom/cask/xquartz Inst....
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JSONB is an awesome datatype in Postgres. I find myself using it on a weekly basis these days. Often in using some API (such as clearbit ) I’ll get a JSON response back, instead of parsing that out into a table structure it’s really easy to throw it into a JSONB then query for various parts of it. If you’re not familiar with JSONB, it’s a binary representation of JSON in your database. You can read a bit more about it vs. JSON here . ....
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JSONB is an awesome datatype in Postgres. I find myself using it on a weekly basis these days. Often in using some API (such as clearbit ) I’ll get a JSON response back, instead of parsing that out into a table structure it’s really easy to throw it into a JSONB then query for various parts of it. If you’re not familiar with JSONB, it’s a binary representation of JSON in your database. You can read a bit more about it vs. JSON here . ....
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Some of you already know, but Monday I’m joining SalesLoft as a product designer. From this point forward I will no longer be contributing to Trustfuel.
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