US: Elevated errors and latency with feature flags

Incident Report for PostHog

Resolved

We're confident that the latest adjustment fixed the issue.

We will continue monitoring FF closely after resolution, but we don't see customer-facing impact anymore.

Thank you for the patience.
Posted Nov 28, 2025 - 12:32 UTC

Update

The service is stable as we are applying some optimizations.
Posted Nov 28, 2025 - 12:16 UTC

Monitoring

We've resolved the immediate issue with the throttling and the service is back to normal.

We are still investigating further what the root cause of the congestion.
Posted Nov 28, 2025 - 10:45 UTC

Identified

We identified the issue with our flags service being throttled on cpu allocations. The service has been scaled up and we have seen latency and error counts stablilise again.

We're investigating what could have led to this cpu exhaustion and will update soon.
Posted Nov 28, 2025 - 10:26 UTC

Update

We've spotted that something has gone wrong. We're currently investigating the issue, and will provide an update soon.
Posted Nov 28, 2025 - 10:02 UTC

Investigating

We're experiencing an elevated level of latency and errors on our feature flag endpoints and are currently looking into the issue.
Posted Nov 28, 2025 - 09:58 UTC
This incident affected: US Cloud 🇺🇸 (Feature Flags and Experiments).