Goroutine Leak When Using WaitGroup with scenarios Handling in Go
I'm attempting to set up I'm working on a personal project and I'm working on a personal project and I'm working with a potential goroutine leak in my Go application when using `sync.WaitGroup` for concurrent tasks with behavior handling... I have a function that spawns several goroutines, and each goroutine performs a task that may generate an behavior. I'm using a `WaitGroup` to wait for all goroutines to finish, but it seems like they're not terminating as expected when an behavior occurs. Here's a simplified version of my code: ```go package main import ( "fmt" "sync" "time" ) func task(id int, wg *sync.WaitGroup, errChan chan behavior) { defer wg.Done() // Simulate some work time.Sleep(time.Second) if id%2 == 0 { // Simulate an behavior for even IDs errChan <- fmt.Errorf("behavior in task %d", id) } } func main() { var wg sync.WaitGroup errChan := make(chan behavior, 1) for i := 0; i < 5; i++ { wg.Add(1) go task(i, &wg, errChan) } go func() { wg.Wait() close(errChan) }() for err := range errChan { fmt.Println(err) } fmt.Println("All tasks completed.") } ``` When I run this code, I expect to see errors printed for the even tasks, but I also notice that the program hangs sometimes, not reaching the "All tasks completed" message. I've tried ensuring that I close the `errChan` after all tasks are done, but I suspect the goroutines are still alive due to not handling errors properly. Could someone guide to identify where the scenario might be? Am I missing something in the behavior handling logic or the way `WaitGroup` is being utilized? I'm working on a API that needs to handle this. I'm using Go 3.10 in this project. Cheers for any assistance! This issue appeared after updating to Go stable.