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Heroku Key-Value Store Now Supports Valkey 8.1 with JSON and Bloom Modules

We’re thrilled to announce the general availability of Valkey v8.1 in Redis OSS compatible Heroku Key-Value Store . This isn’t just an incremental update; it’s a significant leap forward, bringing enhanced performance and greater efficiency. To add to this excitement, we’re bringing powerful new module capabilities to v8.1, with Valkey Bloom and ValkeyJSON.

For years, Heroku customers have relied on our managed in-memory data store services for caching, session management, real-time leaderboards, queueing, and so much more. Valkey is a drop-in, open-source fork of Redis OSS at v7.2, maintained by the Linux Foundation, and is backwards compatible with Redis OSS protocols…

Scaling Real-Time SignalR Applications on Heroku

SignalR makes it easy to add real-time functionality to .NET web applications—things like live chat, instant notifications, or interactive dashboards. But what happens when your app starts to grow? A single server can only take you so far. At some point, you’ll need to scale out.

In this post, we’ll walk through what it takes to scale a SignalR app to run across multiple servers. We’ll start with the basics, then show you how to use Redis as a backplane and enable sticky sessions to keep WebSocket connections stable. And we’ll deploy it all to Heroku. If you’re curious about what…

Electron on Heroku

As maintainers of the open source framework Electron , we try to be diligent about the work we take on. Apps like Visual Studio Code, Slack, Notion, or 1Password are built on top of Electron and make use of our unique mix of native code and web technologies to make their users happy. That requires focus: There’s always more work to be done than we have time and resources for. In practice, that means that we don’t want to spend time thinking about the server infrastructure for the project‌ — ‌and we’re grateful for the support we receive from…

Heroku Shield for Redis Is Now Generally Available

We are thrilled to announce that Heroku Shield for Redis is now generally available and certified for handling PHI, PII, and HIPAA-compliant data. Heroku Shield for Redis is the final missing data service for Heroku Shield, which is an integrated set of Heroku services with additional security features needed for building high compliance applications. All Heroku Managed Data Services — Heroku Connect, Heroku Data for Redis, Heroku Postgres, and Apache Kafka on Heroku — are now fully certified for handling PHI, PII, and HIPAA-compliant data as part of Heroku Shield. Security and compliance come standard with Heroku Shield,…

Bring Your Own Key for Heroku Managed Data Services Is Now Generally Available

Security is always top of mind for Heroku customers; COVID-19 has further increased the urgency for enterprises and developers to deliver more mission-critical applications with sensitive and regulated data.

Given the needs of our customers, including those in regulated industries like Health & Life Sciences and Financial Services, we are thrilled to announce that Heroku Private Spaces and Shield customers can now deploy a new Postgres, Redis, or Apache Kafka service with a key created and managed in their private AWS KMS account. With BYOK, enterprises gain full data custody and data access control without taking on the…

Announcing Heroku Data Services Integrations Using mutual TLS and PrivateLink

Today, we’re thrilled to announce four new trusted data integrations that allow data to flow seamlessly and securely between Heroku and external resources in public clouds and private data centers:

Heroku Postgres via mutual TLS
Heroku Postgres via PrivateLink
Apache Kafka on Heroku via PrivateLink
Heroku Redis via PrivateLink

These integrations expand Heroku's security and trust boundary to cover the connections to external resources and the data that passes through them. They enable true multi-cloud app and data architectures and keep developers focused on delivering value versus managing infrastructure. Data is the driving force in modern app development, and…

Up to 75% Faster Maintenances with Heroku Postgres and Redis Premium Plans

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.

Data Services Architecture

High availability plans for Postgres and Redis are designed to have two database instances running at the same time. One is a writeable primary database server and the other is a read-only hidden standby. Since the standby is hidden, customers cannot…

Why Frequent Maintenances Are Essential for Secure Heroku Data Services

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…

Optimizing Database Performance in Rails

Setting up a database is a relatively straightforward process (Heroku has an add-on for that ), but getting it to run well in production is sometimes another matter. As your application grows and your data grows along with it, you will likely find a number of performance bottlenecks specifically related to your database, and this post aims to help you diagnose and address those issues when they arise.

As with all components of your infrastructure it’s important to have early visibility into the performance characteristics of your database. Watching this data as your application grows will give you…

Rolling the Heroku Redis Fleet

Over the past few weeks, Heroku proactively updated our entire Redis fleet with a version of Redis not vulnerable to CVE-2018-11218 . This was an embargoed vulnerability, so we did this work without notifying our customers about the underlying cause. As always, our goal was to update all Heroku Redis instances well before the embargo expired.

As a Data Infrastructure Engineer at Heroku, I wanted to share how we manage large fleet operations such as this one. The most important aspect of our job is keeping customers safe from security vulnerabilities, while also minimizing disruption and…

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