wenlong88 commented on issue #6684: [FLINK-10205] Batch Job: InputSplit Fault tolerant for DataSource… URL: https://github.com/apache/flink/pull/6684#issuecomment-430467136 hi, @tillrohrmann @isunjin , we have encountered the same issue in region failover, and fix with a similar patch. Restricting the splits to the failed task is necessary, because the framework do not know how the input assigner assign splits to subtask and we can't reconstruct the assigner in region failover, so keep the assignment not changed is the most general way to fix the issue.
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