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Heroku Blog

Upgrade to Puma 7 and Unlock the Power of Fair Scheduled Keep-alive

Puma 7 is here, and that means your Ruby app is now keep-alive ready. This bug , which existed in Puma for years, caused one out of every 10 requests to take 10x longer by unfairly “cutting in line.” In this post, I’ll cover how web servers work, what caused this bad behavior in Puma, and how it was fixed in Puma 7; specifically an architectural change recommended by MSP-Greg that was needed to address the issue.

Building an Enterprise Data Warehouse on Heroku: From Complex ETL to Seamless Salesforce Integration

Modern businesses don’t just run on Salesforce—they run on entire ecosystems of applications. At Heroku, we operate dozens of services alongside our Salesforce instance such as billing systems, user management platforms, analytics engines, and support tools. Traditional approaches to unifying this data create more problems than they solve.

In this article, we’ll see how we unified Salesforce and multi-app data into a real-time analytics platform that processes over 10 TB data monthly with 99.99% uptime. We’ve built a data warehouse architecture that eliminates ETL complexity while delivering real-time insights across our entire technology stack. Here’s how we did it and why…

Learn How to Lower Heroku Dyno Latency through Persistent Connections (Keep-alive)

The Performance Penalty of Repeated Connections

Before the latest improvements to the Heroku Router, every connection between the router and your application dyno risked incurring the latency penalty of a TCP slow start . To understand why this is a performance bottleneck for modern web applications, we must look at the fundamentals of the Transmission Control Protocol (TCP) and its history with HTTP.

Maybe you’ve heard of a keep-alive connection, but haven’t thought much about what it is or why they exist. In this post, we’re going to peel away some networking abstractions in order to explain what a keep-alive…

Heroku Connect: Faster, More Reliable Data Sync with Salesforce CDC

Imagine this: Your sales team is about to close a major deal. They’re building a custom quote in your app, but they need to see the latest product line items from an Opportunity in Salesforce. They refresh. And wait. The data is stale. The quote gets generated, but it’s missing the latest addition to the deal since your data didn’t sync yet.

This isn’t a hypothetical problem. It’s a frustrating reality for developers who have been limited by legacy data synchronization technology. You’ve told us you need faster, more comprehensive data sync, particularly Accelerated Polling support for crucial but unsupported objects…

Heroku Introduces New Innovations to Expand the Capabilities of Every Salesforce Org

Today’s businesses face a tremendous amount of complexity in tools, data silos, and systems that teams need to navigate to deliver unique and engaging experiences to their customers. Meanwhile developers are only able to spend a fraction of their time coding due to the cognitive load of technology complexity, constant context switching, and figuring out how to adopt AI effectively into their daily work.

The Heroku AI PaaS is the Cloud Native Application Platform from Salesforce to seamlessly build and scale any custom service for greenfield app development, modernizing existing apps, and as part of a Salesforce cloud implementation.

At Dreamforce, we are excited to introduce new innovations to our AI PaaS that expand the capabilities of every Salesforce org and empower new builders. Today’s announcement includes innovations in three key areas:

  1. Expanding the capabilities of every Salesforce org with the flexibility of more pro-code and elastic compute with enterprise performance, scale and security enhancements.
  2. Enhancing and expanding the data foundation to empower our customers’ modern and AI app strategies.
  3. Delivering new vibes using AI to make the process of building new applications as accessible as sending a text message.

Introducing the Next Generation of Heroku Postgres – Unlocking Performance, Scale, and Zero-Friction Ops

We are thrilled to announce the next generation of Heroku Postgres to power a data foundation for the next wave of intelligent and mission-critical applications. This roadmap has been driven by listening closely to our customers, culminating in the introduction of a new Heroku Postgres Advanced tier. This revolutionary data foundation is designed to eliminate previous scaling limits, unlock unprecedented architectural flexibility and performance, and reduce operational friction. As the AI PaaS from Salesforce, Heroku is the force multiplier for developers building this future with an integrated platform with powerful capabilities made simple to use - removing friction along the software delivery lifecycle. We invite you to sign up for the pilot.

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