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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