QM recording sync returns 422 during R750 local survivability failover

POST /api/v2/recording/recordings is throwing a 422 Unprocessable Entity with {“code”:“invalidRequestPayload”,“message”:“Recording URI format does not match expected schema”}. Primary WAN drops during the Tokyo ISP maintenance window again. The R750 pair flips straight to local survivability on Edge 2024.6.1. Media routes fine through the local proxy, but the Quality Management dashboard shows zero completed evaluations for the shift. Poked around the Edge BIOS settings and network routing tables just in case. It’s all looking standard. The local media server’s writing .wav files to /var/media/edge/recordings/, yet the platform API rejects the sync payload. WFM scheduling still marks agents as available, but the recording metadata doesn’t bridge back to the QM evaluation queue. Tried clearing the local cache and restarting the media service on both nodes. Failover timer is hardcoded to 120 seconds in the cluster config. Network latency spikes to 450ms during the switchover window. Maybe the local recording path needs a specific prefix for the QM parser to accept it. Edge logs just show repeated URI_MISMATCH warnings.

The 422 error isn’t a schema mismatch. It’s a timing issue with the Edge survivability mode. When the primary WAN drops, the local Edge tries to write recording metadata to a cached or stale endpoint before the DNS failover fully propagates to the QM service. You’ll need to implement a retry mechanism with exponential backoff on the client side or in your integration layer.

Here’s a basic retry pattern for Node.js:

async function retryWithBackoff(fn, retries = 3) {
 for (let i = 0; i < retries; i++) {
 try {
 return await fn();
 } catch (err) {
 if (err.response?.status === 422 && i === retries - 1) throw err;
 await new Promise(r => setTimeout(r, 2 ** i * 1000));
 }
 }
}

// Usage
await retryWithBackoff(() => platformClient.RecordingApi.postRecordingRecordings(payload));

Check the New Relic dashboard for genesys_cloud_api_errors during the failover window. You’ll likely see a spike in 422s correlating with the Edge state change. Instrument the retry count as a custom event. It helps correlate the API noise with the infrastructure event.