This topic describes how to view and modify the parameters of a data validation task.
View parameters
Log in to the OceanBase Cloud console.
In the left-side navigation pane, select Data Services > Data Validation.
On the Data Validation page, click ... next to the target task and select View Parameters.
You can also click the name of the target task to go to its details page, and then click ... in the upper-right corner and select View Parameters.
On the View Parameters panel, view the configuration parameters of the current task.
Modify parameters
Log in to the OceanBase Cloud console.
In the left-side navigation pane, select Data Services > Data Validation.
On the Data Validation page, click ... next to the target task and select Modify Parameters.
You can also click the name of the target task to go to its details page, and then click ... in the upper-right corner and select Modify Parameters.
In the parameter panel corresponding to the selected validation type, modify the parameters as needed.
Full validation
When you create a data validation task, if you select Full Validation in the Select Type & Objects step, the following parameters will be displayed.
Parameter Description Source Concurrency/Target Concurrency The minimum value is 1 and the maximum value is 512. The default value is 4. Validation Mode Valid values: Adaptive and IN Mode. - Adaptive: Data is fetched in batches from the source and target, and then compared precisely.
- IN Mode: Data is fetched in batches from the source. Based on the unique keys of the target data, an IN condition query is performed on the target to compare whether the data is consistent. Note that this mode cannot validate scenarios where the target contains data not present in the source. Additionally, the performance of this mode may degrade. We recommend using this mode only when the target contains unexpected extra data that does not need to be validated or in migration scenarios involving database table aggregation.
Limit BPS The unit is MiB/s, and the maximum value is 1024. If you enable this option, please set at least one of the minimum rates for the source or the target. Row count validation
When you create a data validation task, if you select Row Count Validation in the Select Type & Objects step, the following parameters will be displayed.
Parameter Description Concurrent Tables for Validation The minimum value is 1 and the maximum value is 100. The default value is 10. This configuration applies to both the source and the target. Query Timeout The unit is minutes, with a minimum value of 1 and a maximum value of 1440. The default value is 10. This configuration applies to both the source and the target.
After modifying the parameters, click Save.