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fix(redis-haproxy): add warning about HAProxy connection limit #3476

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Merged
sc-zenokerr merged 3 commits into from
Jan 13, 2026
Merged

fix(redis-haproxy): add warning about HAProxy connection limit #3476

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e2bf1ad
docs: add warning about HAProxy connection limit for Business plan
sc-zenokerr Dec 30, 2025
b304a73
docs(redis): add limitations section for HAProxy connection cap
sc-zenokerr Jan 6, 2026
4155b14
remove alert box, and give redis trademark notice a section title
sc-zenokerr Jan 13, 2026
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16 changes: 15 additions & 1 deletion src/_posts/databases/redis/2000-01-01-start.md
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@@ -1,7 +1,7 @@
---
title: Scalingo for Caching
nav: Introduction
modified_at: 2025-12-29 00:00:00
modified_at: 2025-12-30 00:00:00
tags: databases redis addon
index: 1
---
Expand Down Expand Up @@ -435,4 +435,18 @@ If your database has multiple nodes, the dump is done on the secondary node.

{% include encryption_at_rest.md %}

## Limitations

### HAProxy Connection Limitation

When using a Business plan, the HAProxy instances serving as entry points to your cluster have a default limit of **2,000 concurrent TCP connections**.

If this limit is reached, any new connection will be abruptly refused.

This can result in "Connection timed out" errors such as:

- _Redis::CannotConnectError : Connection timed out_

## Redis® Trademark Notice

*Redis® is a registered trademark of Redis® Ltd. Any rights therein are reserved to Redis® Ltd. Any use by Scalingo is for referential purposes only and does not indicate any sponsorship, endorsement or affiliation between Redis® and Scalingo.