Improve source query diagnostics

client.go

@@ -21,3 +21,14 @@ func NewAll(timeout time.Duration) *Client {
 		Source:  source.New(source.Options{Timeout: timeout}),
 	}
 }
+
+func (c *Client) SetSourceDebug(debug bool) {
+	if c == nil {
+		return
+	}
+	timeout := 2 * time.Second
+	if c.Source != nil {
+		timeout = c.Source.Timeout()
+	}
+	c.Source = source.New(source.Options{Timeout: timeout, Debug: debug})
+}