Tell me about a memorable failure at work.

One of the memorable failures at work was related to improper context management in Go. In a project, I forgot to pass a context with a timeout to HTTP requests, which caused a goroutine to block forever when an external service hung, leading to resource leaks and performance degradation.

After that, I implemented the practice of always explicitly passing a context with a timeout or deadline, and also added goroutine monitoring for timely detection of deadlocks. This experience taught me the importance of careful management of operation lifetimes and resources in concurrent systems.