Heroku Blog
- Engineering
- Last Updated: August 28, 2019
- Corey Purcell
As outlined in a previous blog post, Heroku Data services undergo routine maintenances for security and patching. In this post, we describe the process used to minimize downtime for Heroku Postgres and Heroku Redis premium ‘High Availability’ plans and how we optimized the process to perform up to 75% faster.
High availability plans for Postgres and Redis are designed to have two database instances running at the same time. One is …
- Engineering
- Last Updated: May 16, 2024
- Ariana Escobar, Jamie White
This is the second post in a two-part series about accessibility. The first post shares why designing for accessibility is important to us and why we encourage you to incorporate it into your software design process.
Heroku’s first accessibility initiative was to reach Level AA for luminance contrast ratio as defined by the internationally recognized best practices of the Web Content Accessibility Guidelines (WCAG) 2.0. This ratio guarantees the legibility of text against its …
- Life
- Last Updated: August 15, 2019
- Ariana Escobar, Jamie White
This is the first post in a two-part series about accessibility. Part two shares our design and development process addressing one aspect of accessibility in the Heroku product.
Equality as a Salesforce Value
We at Salesforce firmly believe that access to information and the ability to contribute to our digital environment should be recognized as basic human rights, not a nice-to-have features.
Globally, hundreds of millions of people have physical, speech, cognitive, and neurological disabilities, …
- News
- Last Updated: July 23, 2019
- Scott Truitt
There are many reasons to choose Heroku Data services, but keeping the services you use secure and up-to-date rank near the top. This foundation of trust is the most important commitment we make to our customers, and frequent and timely maintenances are one way we deliver on this promise.
We do everything we can to minimize downtime, which is typically between 10 – 60 seconds per maintenance. There are ways for you to minimize disruption too (see the tips and tricks below). The rest of the post explains how we think about Heroku Data maintenances, how we perform them, and when we perform them.
Hackers exploit known but unpatched vulnerabilities or out-of-date software. Minimizing the time between when a patch or update becomes available and when it gets deployed is the most effective means of limiting damage. There’s nothing worse than seeing your company’s high-profile breach at the top of Hacker News and the Wall Street Journal.
This business and reputation risk is real. Like you, we’re faced with the same choice. We believe it’s best to budget some prevention time upfront for patching and updating data services. Otherwise, an incident may cost us (and you) a larger amount of remediation time and effort, to say nothing of the potential damage done to our (and your) brand, business, and customers.
That’s why we invest significant engineering, security, and operations effort into creating a proactive security posture that keeps your stack up-to-date through frequent, scheduled maintenances.
- Engineering
- Last Updated: June 03, 2024
- Becky Jaimes
Every organization needs to be data-driven in order to be successful. Whether you're tracking an application's performance, incoming support tickets, or revenue rates, different components of any company depend on metrics that inform the health of the business.
At Heroku, we're hackers to the core, but that doesn't mean we're all programmers. We build on top of our own platform for everything we do, and one of the products we often use is Heroku Dataclips. …
- Engineering
- Last Updated: July 12, 2019
- Richard Schneeman
For quite some time we've received reports from our larger customers about a mysterious H13 – Connection closed error showing up for Ruby applications. Curiously it only ever happened around the time they were deploying or scaling their dynos. Even more peculiar, it only happened to relatively high scale applications. We couldn't reproduce the behavior on an example app. This is a story about distributed coordination, the TCP API, and how we debugged and fixed …
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