When using Bridge mode (the default at install), all requests are routed to the Primary by default. To test query routing, run the following query when connected through the Connector:

Route to the Primary:
mysql> select @@hostname;

In Bridge mode, the only way to verify that reads are being directed to replicas is to establish a read-only port and execute queries through it to force the QoS RO_RELAXED.

First, ensure that your INI file has the following option, then run tpm update

connector-readonly-listen-port=3307

To test, ensure you connect to the specified read-only port:

Route to a Replica:
shell> mysql -h... -P3307
mysql> select @@hostname;

To test Connector query routing in Proxy mode, you may use the URL-based R/W splitting to test query routing:

Route to the Primary:
shell> mysql -h... -Dtest@qos=RW_STRICT -e "select @@hostname;"

Route to a Replica:
shell> mysql -h... -Dtest@qos=RO_RELAXED -e "select @@hostname;"

To test Connector query routing in Proxy mode when either SmartScale or @direct read/write splitting has been enabled, you may use the following:

Route to the Primary:
mysql> select @@hostname for update;

Route to a Replica:
mysql> select @@hostname;