Oxy: the journey of graceful restarts

Implementing a graceful restart for an application can be complex, but it is essential to ensure service continuity and minimize impact on users during updates or configuration changes. To achieve this in Rust, you need to use tokio asynchronous runtime library that provides tools for managing IO operations and concurrency. In addition, creating a Unix socket specifically for coordinating restarts can help detect failures earlier and prevent your systems from getting into an inconsistent state. However, there are still certain limitations when it comes to carrying existing state to a new process, which requires more advanced techniques such as hot code upgrades or other creative solutions.

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