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Quotes tagged ‘Ops’

(41 total)

There's an opportunity there to address the lone wolf syndrome; particularly in a dev environment, infrastructure-as-code provides a great framework for sharing the load.

— Stuart Ainsworth, devops.stackexchange.com

Videos start out blurry but then suddenly sharpen up — that is Netflix switching servers till it connects to the one that will give you the highest quality of video.

— Mayukh Nair, medium.com

A hot-standby is a PostgreSQL replica that allows you to run read-only SQL queries, contrary to a regular standby that does not allow any SQL queries to be executed.

— Yorick Peterse, about.gitlab.com

We built an AWS Lambda whose sole job is to manage these AppRoles in Vault when a resource is created, updated, or deleted with CloudFormation. Once a Docker container starts up, we set up an ENTRYPOINT script that uses the credentials set by the Lambda function to retrieve a Vault token and access…

— Natacha Springer, kickstarter.engineering

Thousands of lines of logs fly by like a Hollywood hacking montage. When the process finishes, it’s not always clear if it succeeded or if you need to scroll up to the cryptic error message you’ll need to google.

— Aaron Suggs, kickstarter.engineering

You can additionally reduce latency by applying CPU affinity on each thread/process, e.g. nginx has worker_cpu_affinity directive, that can automatically bind each web server process to its own core. This should eliminate CPU migrations, reduce cache misses and pagefaults, and slightly increase inst…

— Alexey Ivanov, blogs.dropbox.com

The end result is a chat-based interface for creating an isolated deployment of GitHub for any pull request. Once a pull request passed all required CI jobs, a user can deploy their pull request to review lab.

— Jesse Newland, githubengineering.com

But the asynchronous, event‑driven approach still has a problem. Or, as I like to think of it, an ‘enemy’. And the name of the enemy is: blocking. Unfortunately, many third‑party modules use blocking calls, and users (and sometimes even the developers of the modules) aren’t aware of the drawbacks. B…

— Valentin Bartenev, nginx.com

good news: it's sysadmin day. bad news, you're still a sysadmin.

— saddest server, twitter.com

Every time you open your phone or refresh your timeline, we score every Tweet from the people you follow since your last visit to determine what Tweets to show you at the top. This scoring step imposes an even greater computational demand on timelines serving infrastructure, as we are now scoring th…

— Nicolas Koumchatzky, blog.twitter.com

MySQL 5.6 was 8% faster than Aurora – The new database didn’t provide the best results on this test, and far off from the 5x promise we’re used to hear from Amazon. Perhaps the biggest differences kick in on different setups with bigger DB sizes, but this just comes to show us the importance of tryi…

— Alex Zhitnitsky, blog.takipi.com

Uber Engineering’s Schemaless storage system powers some of the biggest services at Uber, such as Mezzanine. Schemaless is a scalable and highly available datastore on top of MySQL¹ clusters. Managing these clusters was fairly easy when we had 16 clusters. These days, we have more than 1,000 cluster…

— Joakim Recht, eng.uber.com

In pursuit of answers, I set up almost 60 different sysbench fileIO test configurations with different kernels, filesystems, mount options and RAID block sizes. Once the best fit configuration was chosen from these experiments, I ran another 20 or so sysbench OLTP runs with other system permutations…

— Ernie Souhrada, engineering.pinterest.com

Vitess is a database solution for scaling MySQL. It's architected to run as effectively in a public or private cloud architecture as it does on dedicated hardware. It combines and extends many important MySQL features with the scalability of a NoSQL database. Vitess has been serving all YouTube data…

— Vitness Marketing, vitess.io

It groups containers that make up an application into logical units for easy management and discovery. Kubernetes builds upon 15 years of experience of running production workloads at Google, combined with best-of-breed ideas and practices from the community.

— Kubernetes, kubernetes.io

Automating common development tasks such as building, testing, and deploying your application has many benefits, including increasing repeatability and consistency by removing the potential for interference by ‘the human element.’ Deploying your applications by running a single command from the comm…

— David E Worth, digitalocean.com

MySQL replication is the process by which a single data set, stored in a MySQL database, will be live-copied to a second server. This configuration, called "master-slave" replication, is a typical setup. Our setup will be better than that, because master-master replication allows data to be copied f…

— Digital Ocean Community, digitalocean.com

MySQL cluster works best in a shared-nothing environment. Ideally, no two components should share the same hardware. For simplicity, and demonstration purposes, we'll limit ourselves to using only three Droplets. There will be two Droplets acting as data nodes which are syncing data between themselv…

— Anatoliy Dimitrov, digitalocean.com

A developer can deploy their applications on AWS without Elastic Beanstalk but that will mean spending time on selecting and piecing together services from the wide array of choices within AWS eco-system.

— Colin Toh, colintoh.com

The recommendation for speeding up a website is almost always to add cache and more cache. And after that add a little more cache just in case.

— High Scalability, highscalability.com

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