- Environment: Genesys Cloud US-East, JMeter 5.6, 500 concurrent users
- Endpoint: PUT /api/v2/architect/flows
- Error: 429 Too Many Requests after 2 minutes of ramp-up
Could someone explain why the rate limit triggers so early? We are testing load capacity and the X-RateLimit-Remaining header hits zero immediately. Is there a specific burst limit for flow updates that we are missing?
The problem here is the inherent throttling on the Architect API endpoints, which are designed for configuration management rather than high-throughput transactional processing. Genesys Cloud enforces strict rate limits on PUT /api/v2/architect/flows to protect the platform stability, especially since flow compilation is a resource-intensive operation.
For AppFoundry integrations or automated provisioning scripts, relying on a simple ramp-up without respecting the Retry-After header will inevitably trigger 429 errors. The standard limit is typically around 100 requests per minute per tenant, with a small burst allowance.
Implementing an exponential backoff strategy in your JMeter script is the most reliable approach. Instead of firing all 500 users simultaneously, use the X-RateLimit-Remaining header to dynamically adjust the request rate. When the header value drops below a safe threshold (e.g., 5), pause the thread group for the duration specified in Retry-After. This aligns with best practices for platform API consumption at scale and prevents unnecessary load shedding.
The documentation actually says architect flow updates are strictly throttled to prevent compilation overload. Use exponential backoff in your script instead of raw concurrency. Check the Retry-After header and pause accordingly. This protects the platform from cascading failures during heavy config pushes.