There are two services running on separate machines: an online store and a warehouse. The online store acts as the downstream customer in relation to the warehouse, which serves as the upstream supplier designed to cater to various types of stores.
When a customer pays for a product, the store sends a request to the warehouse to deduct the purchased quantity of items from the inventory. The request successfully reaches the warehouse, and the items are deducted. However, the response back to the store is not received due to a connection interruption. Attempts to restore the connection fail, resulting in the store and the customer being unaware that the items have been deducted and dispatched.
This situation resembles the Two Generals’ Problem in computer science.
What algorithms are commonly employed in real-world scenarios to address such challenges?