Case Study: Disqus achieves rapid error detection and consolidated monitoring with Sentry

How Disqus Uses Sentry

Disqus, the leading online discussion and commenting service serving 1.1 billion monthly visitors across 2.5 million sites, outgrew traditional logging as it scaled. Around 2010 the engineering team needed real aggregation and deeper introspection to handle frequent exceptions (average 1–2 events/sec with spikes up to 500/sec), so they built Sentry to centralize exception logging—initially for Django—to detect and prioritize real issues quickly.

Sentry expanded to support multiple languages and is now used across the entire engineering team and more than 20 projects, deployed as an early-warning system, prioritization tool for developers, and a diagnostic and auditing platform for ops and support. Its consolidated view, easy setup, and features like error hashes for support have sped debugging, improved incident response, and helped Disqus quickly identify and address the issues most impactful to users.

Disqus

Mike Clarke

Software Engineer