How refresh all connections schema?

Yii 2.0 General Discussions
1

Our system configure one master and many slave db servers, and all of them enableSchemaCache set to true. Refresh the schema only take effect on the current connection, not all of the connections, masters and slaves. How to refresh schema cache of all the connections?

2

How do you refresh the schema?

3

Yii::$app->db->schema->refresh();

4

Really just a guess: call refresh on each connection’s schema?