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 […] The post Heroku Key-Value…
#redis
13 posts
2 Jul 2025
12 Feb 2024
Pareto Principle in Action: Boosting Performance with Smart Caching Caching — the superhero of speedy apps. It’s the secret sauce that saves us from constant database calls, making our applications faster and cutting down on infrastructure costs. But, let’s face it, caching isn’t always a walk in the park. Visualize this: we need to navigate the complexities of high query…
22 Mar 2022
At Groupon, we are in the process of migrating our app workloads to AWS EKS. As part of the migration, we are also in the process of re-architecting our services to make them cloud & Kubernetes optimised. In this article, we will focus on the impact of cloud migration on Varnish caching at Groupon. For the uninitiated, Varnish is a…
28 Aug 2019
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 […] The post Up to…
27 Jun 2018
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. […] The post Rolling the…
13 Jun 2018
On May 10, 2018, we received notice about two critical vulnerabilities in Redis, both embargoed until this morning. Upon this notice, our Data Infrastructure team proceeded to patch all internal and customer databases in response to these vulnerabilities. As of today, all customer databases have been patched successfully. At Heroku, customer trust is our most […] The post An Update…
2 May 2017
The Heroku Connect team ran into problems with existing task-scheduling libraries. Because of that, we wrote RedBeat, a Celery scheduler that stores scheduled tasks and runtime metadata in Redis. We’ve also open-sourced it so others can use it. Here is the story of why and how we created RedBeat. Why We Created the RedBeat Celery […] The post Hello RedBeat:…
28 Jul 2016
Redis might sound like it’s just a key/value store, but its versatility makes it a valuable Swiss Army knife for your application. Caching, queueing, geolocation, and more: Redis does it all. We’ve built (and helped our customers build) a lot of apps around Redis over the years, so we wanted to share a few tips […] The post Real-World Redis…
7 Apr 2016
We recently sat down for a chat with Bill Curtis, a co-founder and the CTO of Sweet Tooth (Now Smile.io), a points and rewards app for online stores worldwide. What has been your greatest challenge? We’re serving way more data today than we ever have, so scaling is mission-critical. In the past, we’ve struggled with […] The post Cyber Monday,…
17 Feb 2016
Based in Tel Aviv, Israel, Vitali Margolin is the Head of R&D for Roomer. Vitali leads a team of seven developers who built and operate the travel marketplace www.roomertravel.com and the travel protection service Life Happens, both running on Heroku. What are you running on Heroku? The four big projects are: the Roomer website, our […] The post Building a…
3 Feb 2016
In 2013, Rafael Ördög put poker and code together, the result: Lean Poker, a competitive coding event that teaches continuous deployment and lean startup methodologies. Rafael is based in Budapest, Hungary. What’s Lean Poker? Lean Poker is a coding workshop that is designed to teach people how to practice continuous deployment and lean startup methodologies. […] The post How Lean…
25 Jun 2015
Today we’re pleased to announce general availability of Heroku Redis with a number of new features and a more robust developer experience. By giving developers a different data management primitive, we’re helping them meet the needs of building modern, scalable applications. The classic example of using multiple data stores in an application is the e-commerce […] The post Heroku Redis…
12 May 2015
Developers increasingly need a variety of datastores for their projects — no one database can serve all the needs of a modern, scalable application. For example, an e-commerce app might store its valuable transaction data in a relational database while user session information is stored in a key-value store because it changes often and needs […] The post Heroku Redis…