Two waiters. One order. One disaster.

Using a restaurant analogy, this post explains race conditions and shared state problems in Go's concurrency model. When multiple goroutines access the same variable without coordination, conflicting writes can corrupt data — illustrated with a bank account losing updates. The solution is sync.Mutex, which enforces mutual exclusion so only one goroutine accesses a shared resource at a time. The key insight is that mutexes ensure correctness, not speed, and locking too broadly can serialize what was meant to be concurrent. The discipline lies in locking at the right granularity and releasing as soon as possible.

Nguồn: https://medium.com/@sundayprincedev/two-waiters-one-order-one-disaster-4649a51fb70b. 8sync News chỉ tóm tắt và dẫn link; bản quyền nội dung thuộc tác giả và nguồn gốc.

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