Game Development

What exactly was compared in the metrics? What was disproportionate with what?

What was the order of discrepancies and duplicates? Single cases or mass?

What was used as a key to guarantee the order of event execution during rebalancing?

How was the problem discovered? What metrics allowed you to identify the defect?

Did the alert trigger only once?

How did the two messages appear? Why did the same one get into the handler twice?

What was used as the idempotency key?

How did a bug with idempotency get into the speed optimization task list? How did it affect your work?

If a user needed to perform multiple operations, how would an idempotency key based on userId work?

How did the double billing bug work? What is its logic and mechanics?