Context:
Running JMeter 5.6.2 to stress test Workforce Management scheduling APIs. Simulating 200 concurrent users importing shift data via POST /api/v2/wfm/schedules. System returns HTTP 429 Too Many Requests after 15 seconds. Environment is Genesys Cloud Production.
Question:
Is there a specific rate limit for bulk import endpoints that differs from standard CRUD operations? Current retry logic fails. Need correct backoff strategy for high-concurrency WFM data ingestion.
Pretty sure the WFM bulk import endpoint caps at roughly 100 requests per second.
Adding a 50ms delay between calls in JMeter usually clears the 429s.
Check your JMeter thread group configuration for constant throughput controllers. The suggestion above mentions a delay, but that often fails under heavy concurrent load because it doesn’t account for variable network latency or server processing time.
Implement an exponential backoff strategy within the test script instead of a static delay. Start with a 100ms base delay and double it on each 429 response, up to a maximum of 2 seconds. This mimics real-world client behavior better than a fixed interval.
Also, verify the Retry-After header in the 429 response. Genesys Cloud explicitly provides the wait time required before the next request is allowed. Using this value dynamically ensures you never exceed the rate limit, regardless of the current server load.