Help Center/ Relational Database Service/ Troubleshooting/ RDS for MySQL/ Other Issues/ No Scanned Rows Recorded in Slow Query Logs

Updated on 2023-11-03 GMT+08:00

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No Scanned Rows Recorded in Slow Query Logs

Scenario

In slow query logs, an SQL statement was executed for 65 seconds, but the number of scanned rows was 0.

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Possible Causes

If an SQL statement is interrupted but its execution time exceeds the slow log threshold, the statement will be recorded in slow query logs and the number of scanned rows is 0. Timeout thresholds have been configured for the JDBC connection from the client.

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Solution

Optimize the SQL statement or set socketTimeout to a more appropriate value.

Parent topic: Other Issues

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Next topic: Rows Recorded in the SQL Diagnosis Result Far Less Than the Scanned Rows Recorded in Slow Query Logs

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