Heroku Blog
- Engineering
- Last Updated: February 15, 2017
- Owen Jacobson
As part of our commitment to security and support, we periodically upgrade the stack image, so that we can install updated package versions, address security vulnerabilities, and add new packages to the stack. Recently we had an incident during which some applications running on the Cedar-14 stack image experienced higher than normal rates of segmentation faults and other “hard” crashes for about five hours. Our engineers tracked down the cause of the error to corrupted dyno filesystems caused by a failed stack upgrade. The sequence of events leading up to this failure, and the technical details of the failure, are…
Today we’re happy to announce that the Sydney, Australia region is now generally available for use with Heroku Private Spaces. Sydney joins Virginia, Oregon, Frankfurt, and Tokyo as regions where Private Spaces can be created by any Heroku Enterprise user. Developers can now deploy Heroku apps closer to customers in the Asia-Pacific area to reduce latency and take advantage of the advanced network & trust controls of Spaces to ensure sensitive data stays protected. Usage To create a Private Space in Sydney, select the Spaces tab in Heroku Dashboard in Heroku Enterprise, then click the “New Space” button and choose…
- News
- Last Updated: January 24, 2017
- Michelle Peot
We’re excited to announce that Heroku Autoscaling is now generally available for apps using web dynos. We’ve always made it seamless and simple to scale apps on Heroku – just move the slider. But we want to go further, and help you in the face of unexpected demand spikes or intermittent activity. Part of our core mission is delivering a first-class operational experience that provides proactive notifications, guidance, and—where appropriate—automated responses to particular application events. Today we take another big step forward in that mission with the introduction of Autoscaling. Autoscaling makes it effortless to meet demand by horizontally scaling…
- Engineering
- Last Updated: January 11, 2017
- Tom Crayford
At Heroku, we're always working towards improving operational stability with the services we offer. As we recently launched Apache Kafka on Heroku, we've been increasingly focused on hardening Apache Kafka, as well as our automation around it. This particular improvement in stability concerns Kafka's compacted topics, which we haven't talked about before. Compacted topics are a powerful and important feature of Kafka, and as of 0.9, provide the capabilities supporting a number of important features. Meet the Bug The bug we had been seeing is that an internal thread that's used by Kafka to implement compacted topics (which we'll explain…
- News
- Last Updated: January 03, 2017
- Vikram Rana
As we begin 2017, we want to thank you for supporting Heroku. Your creativity and innovation continues to inspire us, and pushed us to deliver even more new products and features in 2016. We especially want to thank everyone who helped us by beta testing, sharing Heroku with others, and providing feedback. Here are the highlights of what became generally available in 2016. Advancing the Developer Experience Heroku Pipelines A new way to structure, manage and visualize continuous delivery. Heroku Review Apps Test code at a shareable URL using disposable Heroku apps that spin up with each GitHub pull request.…
- News
- Last Updated: March 29, 2024
- Jonan Scheffler
The Ruby maintainers continued their annual tradition by gifting us a new Ruby version to celebrate the holiday: Ruby 2.4 is now available and you can try it out on Heroku. Ruby 2.4 brings some impressive new features and performance improvements to the table, here are a few of the big ones: Binding#irb – Runtime Invocation for IRB Unified Integers – Fixnum and Bignum are now Integer Rounding Changes – More Accurate Kernel#sprintf Rounding Background: 32-bit vs 64-bit Word Length C Data Models Fixnum Sizes Across Rubies Proposed Changes Gaussian Rounding Hash Changes – Open Addressing for Cache Utilization via Full Cycle LCG Background: Processor Caching A DIY Hash: TurboHash Open Addressing Linear Probing The Linear Congruential…
Subscribe to the full-text feed.