Subscription Procedure From the Palette, drop tMysqlConnection, tMySQLInvalidRows and tLogRow onto the design workspace. You can label any component in the workspace the way you need. For further information about how to label a component, see Talend Studio User Guide. Right-click tMysqlConnection and select the Trigger > OnSubjobOk link to connect this component to tMySQLInvalidRows. Repeat this operation but select the Row > Main link to connect tMySQLInvalidRows to tLogRow.