Understanding Race Conditions and Concurrency Problems: A Complete Developer’s Guide
Introduction: When $1,000 Becomes Negative Imagine you’re running a banking application. A customer has $1,000 in their account. Two withdrawal requests arrive at almost the same instant: Both requests check the balance. Both see $1,000. Both confirm sufficient funds. Both proceed. The account ends up at –$200. No fraud. No malicious code. Just two threads…
