Quick answer: Implement graceful shutdown that stops accepting new work, finishes in-flight requests, and releases resources, so deploys and scale-downs lose nothing.
Killing a service mid-request drops players' work. Graceful shutdown finishes it first. Here is how.
How to fix it
1. Stop accepting new work
On shutdown signal, stop taking new requests but keep serving current ones.
2. Drain in-flight work
Finish in-flight requests within a timeout before exiting.
3. Release resources
Close connections and flush buffers cleanly so nothing is lost.
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 backend 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.
Reproduce it once with full context and the fix writes itself. The hunt is the expensive part.