Reduce data races (#14549)

* Add race conditions into test

* Fix Race in GetManager()

* DataAsync() use error chan

* just log no chan

* finish

modules/process/manager_test.go

@@ -12,6 +12,15 @@ import (
 	"github.com/stretchr/testify/assert"
 )
 
+func TestGetManager(t *testing.T) {
+	go func() {
+		// test race protection
+		_ = GetManager()
+	}()
+	pm := GetManager()
+	assert.NotNil(t, pm)
+}
+
 func TestManager_Add(t *testing.T) {
 	pm := Manager{processes: make(map[int64]*Process)}