wsm12138 commented on issue #20458:
URL: 
https://github.com/apache/shardingsphere/issues/20458#issuecomment-1225210334

   After the `check migration ${job id};` performs data consistency 
verification, there may be increments during the `stop migration ${job id};`. 
This leads to inconsistency between source & target data. At present, migrat 
cannot limit the writing on the source side, so the whole process is controlled 
by the user , which is easy to cause data inconsistency.


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