tianping526 commented on issue #294:
URL:
https://github.com/apache/rocketmq-clients/issues/294#issuecomment-2965100151
The data race occurs because `defaultClientMeterProvider.clientMeter` is
reassigned in `func (dcmp *defaultClientMeterProvider) Reset(metric
*v2.Metric)` at the same time as `func ( dcmp *defaultClientMeterProvider)
isEnabled() bool` is read.
```
func (dcmp *defaultClientMeterProvider) Reset(metric *v2.Metric) {
...
if !metric.GetOn() {
dcmp.clientMeter.shutdown()
sugarBaseLogger.Infof("metric is off, clientId=%s",
dcmp.client.GetClientID())
dcmp.clientMeter = NewDefaultClientMeter(nil, false, nil,
dcmp.client.GetClientID()) // dcmp.clientMeter is being written
return
}
...
}
func (dcmp *defaultClientMeterProvider) isEnabled() bool {
return dcmp.clientMeter.enabled.Load() // At the same time
dcmp.clientMeter is being read
}
```
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