Does Go\'s Goroutine Model Avoid Stack Overflow Errors Like Node.js?

Does Go Have an "Infinite Call Stack" Equivalent?

In Node.JS, recursive function calls with deep nesting can cause the program to crash due to a finite maximum call stack size. Developers coming from Node.JS may wonder if Go has the same limitation.

Goroutines and Stack Size in Go

Unlike Node.JS, Go uses a different paradigm called goroutines, which do not have a fixed stack size. Instead, goroutines start small and dynamically grow and shrink as needed, giving the impression of an "infinite" stack. However, there are still limitations to this perceived infinity.

Stack Memory Limit and Call Depth

While goroutines do not have a direct call depth limit, there is a stack memory limit enforced by the Go runtime. This limit is typically very high, ranging from hundreds of megabytes to gigabytes.

In the provided Go example, recursively calling the run function up to 1 million times will not crash the program because it stays within the stack memory limit. However, increasing the recursion call to 1 billion times will exceed the limit and cause a runtime error due to stack overflow.

Conclusion

While Go provides a more relaxed approach to stack management compared to Node.JS, there is still a finite stack memory limit. It is generally considered an anti-pattern to rely on excessive recursion in Go, as it can lead to unpredictable memory consumption and potential stack overflows.

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