bugfix: fix lock competition between Stats and Start interface when container is not running

Signed-off-by: Michael Wan <[email protected]>

Author: HusterWan

daemon/mgr/container_stats.go

@@ -81,6 +81,11 @@ func (mgr *ContainerManager) Stats(ctx context.Context, name string) (*container
 	ID := c.ID
 	c.Unlock()
 
+	// only get metrics when the container is running
+	if !(c.IsRunning() || c.IsPaused()) {
+		return nil, nil, nil
+	}
+
 	metric, err := mgr.Client.ContainerStats(ctx, ID)
 	if err != nil {
 		return nil, nil, err