After a migration task is started, if it is interrupted due to an exception, you can retry it.
Currently, you can retry a migration task only if the source database is MySQL or TDSQL-C.
To retry a task, DTS uses the binlog offset to find the data point where the task was stopped, then pulls the binlog from the position of the first GTID not executed in the source database, and continues to consume the data.
The support for task retry in different data migration scenarios is as detailed below:
Log in to the DTS console, select Data Migration on the left sidebar, select the target migration task, and click Retry in the Operation column.