Viewing Slow Query Logs

Scenarios

Slow query logs record statements that exceed long_query_time. You can use these logs to identify and optimize the statements that are executing slowly.

Viewing Log Details

1. Log in to the management console.
2. Click in the upper left corner and select a region and a project.
3. Click Service List. Under Database, click Relational Database Service. The RDS console is displayed.
4. On the Instance Management page, click the target DB instance.
5. In the navigation pane on the left, choose Logs. On the Slow Query Logs page, view details about slow query logs.
   • You can view the slow query log records of a specified execution statement type or a specific time period.
   • The long_query_time parameter determines when a slow query log is recorded. However, changes to this parameter do not affect already recorded logs. If long_query_time is changed from 1s to 0.1s, none of the previously recorded logs that do not meet the new threshold are deleted. For example, a 1.5s SQL statement that was recorded when the threshold was 1s will not be deleted now that the new threshold is 2s.