Hey everyone, I’ve run into a really strange issue with the Genesys Cloud Bot APIs when pushing concurrent sessions through JMeter. We are trying to validate the platform’s ability to handle a sudden influx of chat interactions, simulating a marketing campaign launch. The test setup involves 500 virtual users hitting the /api/v2/conversations/messaging/events endpoint to send initial messages to a specific bot.
The issue arises almost immediately after ramping up. Instead of a smooth throughput increase, we start seeing a high volume of HTTP 429 Too Many Requests errors. This is strange because we are well within the documented rate limits for our tier. The error response body usually contains:
{
"status": 429,
"code": "TooManyRequests",
"message": "You have exceeded the rate limit for this resource."
}
I have configured the JMeter thread group with a ramp-up period of 60 seconds to avoid sharp spikes, but the 429s still trigger around the 200-user mark. The retry logic in our script kicks in, but it just exacerbates the problem, leading to a cascade of failures and eventually timing out the WebSocket connections for the active sessions.
Here are the specifics:
- Environment: Genesys Cloud US-East region
- SDK/Client: Raw HTTP requests via JMeter 5.6.2
- Endpoint:
POST /api/v2/conversations/messaging/events - Payload: Standard text message event with a unique conversation ID per thread.
- Auth: OAuth2 Bearer token refreshed every 55 minutes.
I checked the Architect flow for the bot, and there are no complex integrations or slow external API calls that should be blocking the queue. The bot is just echoing back the message. Is there a hidden limit on message creation events per minute for bot conversations specifically? Or is this related to how the messaging service handles concurrent session creation?
Any insights on tuning the JMeter parameters or if there’s a specific header I need to include to optimize the throughput? We need to ensure our infrastructure can handle peak loads without hitting these artificial caps.