NodeDelete needs to be asynchronous

NodeDelete was returning StatusOK, when in fact it should be
returning StatusAccepted so that the work is done asynchronously.

Closes #116

Signed-off-by: Luis Pabón <lpabon@redhat.com>

apps/glusterfs/app_node.go

@@ -181,9 +181,10 @@ func (a *App) NodeDelete(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 
-	// Show that the key has been deleted
-	logger.Info("Deleted node [%s]", id)
-
-	// Write msg
-	w.WriteHeader(http.StatusOK)
+	a.asyncManager.AsyncHttpRedirectFunc(w, r, func() (string, error) {
+		time.Sleep(1 * time.Second)
+		// Show that the key has been deleted
+		logger.Info("Deleted node [%s]", id)
+		return "", nil
+	})
 }

apps/glusterfs/app_node_test.go

@@ -272,7 +272,23 @@ func TestNodeAddDelete(t *testing.T) {
 	tests.Assert(t, err == nil)
 	r, err = http.DefaultClient.Do(req)
 	tests.Assert(t, err == nil)
-	tests.Assert(t, r.StatusCode == http.StatusOK)
+	tests.Assert(t, r.StatusCode == http.StatusAccepted)
+	location, err = r.Location()
+	tests.Assert(t, err == nil)
+
+	// Wait for deletion
+	for {
+		r, err := http.Get(location.String())
+		tests.Assert(t, err == nil)
+		if r.Header.Get("X-Pending") == "true" {
+			tests.Assert(t, r.StatusCode == http.StatusOK)
+			time.Sleep(time.Millisecond * 10)
+			continue
+		} else {
+			tests.Assert(t, r.StatusCode == http.StatusNoContent)
+			break
+		}
+	}
 
 	// Check db to make sure key is removed
 	err = app.db.View(func(tx *bolt.Tx) error {