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Heroku Blog

Apache Kafka 0.10 Evaluating Performance in Distributed Systems

At Heroku, we’re always striving to provide the best operational experience with the services we offer. As we’ve recently launched Heroku Kafka, we were excited to help out with testing of the latest release of Apache Kafka, version 0.10, which landed earlier this week. While testing Kafka 0.10, we uncovered what seemed like a 33% throughput drop relative to the prior release. As others have noted, “it’s slow” is the hardest problem you’ll ever …

Heroku Metrics

For almost two years now, the Heroku Dashboard has provided a metrics page to display information about memory usage and CPU load for all of the dynos running an application. Additionally, we’ve been providing aggregate error metrics, as well as metrics from the Heroku router about incoming requests: average and P95 response time, counts by status, etc.

Almost all of this information is being slurped out of an application’s log stream via the Log Runtime …

Reactive Ruby: Building Real-time Apps with JRuby and Ratpack

Nothing beats Ruby when it comes to rapid development, quick feedback, and delightful coding. The Ruby runtime and traditional ruby frameworks favor synchronous programming, which makes them easy to use and understand. But microservices and real-time apps require asynchronous programming and non-blocking IO to enable maximum throughput. That's where JRuby comes in.

You can build reactive microservices in Ruby using JRuby and frameworks like Ratpack. JRuby interprets Ruby code into Java Virtual Machine (JVM) …

Announcing Heroku Free SSL Beta and Flexible Dyno Hours

Editor's Note: SSL Is Now Included on All Paid Dynos as of September 22, 2016

At Heroku, we want to make it easy for everyone to be able to learn and explore our service, and the related ecosystem of technologies, for free – be it student, professional developer, hobbyist or just curious individual. We view this as both part of our mission and our business model; it has never been a more interesting – or …

Where Will Ruby Go Now? Talking with Tenderlove at RailsConf

Last week at RailsConf in Kansas City, Terence Lee and Richard Schneeman of Heroku’s Ruby Task Force sat down with the legendary Aaron Patterson (AKA tenderlove).

Aaron has been working hard to make Ruby three times faster — a goal that Matz called Ruby 3×3. Along the way, Aaron has discovered that Ruby may face a hard decision. On one side, Ruby can continue to be the productive, general-purpose scripting language that it looks like …

Heroku Connect APIs Now GA

Today we’re announcing that the APIs for the Heroku Connect data synchronization service are now GA. These fully supported endpoints will help our users with the tasks they most need repeatable automation for: creating consistent configuration across development, staging, and production environments; managing connections across multiple Salesforce deployments; and integrating Heroku Connect status with their existing operational systems and alerts.

When we first released Heroku Connect, users were delighted with the simple point and click …

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