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Posted to dev@servicecomb.apache.org by GitBox <gi...@apache.org> on 2018/03/23 06:27:10 UTC

[GitHub] eric-lee-ltk commented on issue #158: mysql duplicate key

eric-lee-ltk commented on issue #158: mysql duplicate key 
URL: https://github.com/apache/incubator-servicecomb-saga/issues/158#issuecomment-375557533
 
 
   When multiple scanners detect the failed event and compensate at the same time, it needs to store the compensate command only once. This is why we introduce the eventId as a unique key. With this constraint, no duplicate compensate commands will be stored in db. 

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