wolfstudy commented on a change in pull request #255:
URL: https://github.com/apache/pulsar-client-go/pull/255#discussion_r427043780
##########
File path: perf/perf-producer.go
##########
@@ -98,7 +98,7 @@ func produce(produceArgs *ProduceArgs, stop <-chan struct{}) {
ch := make(chan float64)
- go func() {
+ go func(stop <-chan struct{}) {
Review comment:
> maybe rename this the stopCh so it's clear in the go routine which one
it's using?
ok
> Just curious what are the steps for it getting stuck?
```
func produce(produceArgs *ProduceArgs, stop <-chan struct{}) {
.....
go func() {
for {
select {
case <-stop:
return
....
}
}()
......
}
```
In gorutine, the external `stop` parameter is not visible to it, so the
program is blocked inside this gorutine. When the user enters `control + c` in
the terminal, the program is blocked and does not exit normally
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