Github user tillrohrmann commented on a diff in the pull request: https://github.com/apache/flink/pull/2513#discussion_r79598970 --- Diff: flink-tests/src/test/java/org/apache/flink/test/checkpointing/RescalingITCase.java --- @@ -670,12 +676,15 @@ public void run(SourceContext<Integer> ctx) throws Exception { } Thread.sleep(100); --- End diff -- You only have to make sure that the sources have not finished their processing when a savepoint is taken from them. But you can assure that differently by waiting on a future which is completed when the source has processed all a certain amount of elements.
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