Quick answer: Accept events into a fast buffer or queue and acknowledge quickly, process asynchronously, and return a retryable status when overloaded so clients resend.
During a launch spike your direct-to-database ingest times out and silently sheds events, leaving holes in the data exactly when it matters most. Buffering and signaling backpressure preserves them.
How to fix it
1. Buffer before the database
Have the endpoint append events to a fast queue (in-memory ring, Kafka, or a write-ahead log) and acknowledge, then drain to the database asynchronously. This decouples ingest rate from write rate.
2. Signal backpressure correctly
When overloaded, return a 429 or 503 that the client treats as retryable rather than silently dropping. A clear retryable status lets the client's backoff queue recover the events.
3. Make ingestion idempotent
Key on the client event_id so retries during a spike do not double-insert. Idempotent ingest lets you retry aggressively without inflating counts.
Catching the ones you can't reproduce
The hardest version of this to fix is the one you can't reproduce — it only happens on a player's hardware, OS, driver, or save state, under conditions that simply aren't present on your machine. A report that says “it crashed” or “it froze” gives you nothing to act on, so the bug survives release after release while quietly costing you players.
Automatic error capture closes that gap. Each failure arrives with its full stack trace, the device and OS, the build number, and a breadcrumb trail of what the player did right before it broke, so even a failure you have never seen becomes a specific, reproducible issue. Fold identical failures into one signature ranked by how many players each hits, and your worklist sorts itself worst-first instead of arriving as a stream of vague complaints.
This is where a tool like Bugnet earns its place. Its SDK captures every error automatically with the full stack trace plus device, OS, memory, build, and game-state context, folds duplicates into one grouped issue with an occurrence count, and ties each to the build it first appeared on — so you fix the problem that hurts the most players first and confirm it is gone when its signature disappears from the next release.
The bug you can't reproduce isn't gone — it's just invisible until you capture it from the player's device.