xuanyuanking commented on pull request #28707: URL: https://github.com/apache/spark/pull/28707#issuecomment-638679010
@skambha You can check the integrated tests in #28725. If we delete the validation, we'll get a NPE for [this test](https://github.com/apache/spark/pull/28725/files#diff-492f0d70824a58ef2ea94a54dc6f9707R79), and get an assertion in the unsafe row for [this test](https://github.com/apache/spark/pull/28725/files#diff-492f0d70824a58ef2ea94a54dc6f9707R185). That is to say, we will get random failures during reusing the checkpoint written by the old Spark version. ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: reviews-unsubscr...@spark.apache.org For additional commands, e-mail: reviews-h...@spark.apache.org