Github user StephanEwen commented on a diff in the pull request:
https://github.com/apache/flink/pull/854#discussion_r33809780
--- Diff:
flink-runtime/src/test/java/org/apache/flink/runtime/operators/CombineTaskTest.java
---
@@ -92,7 +92,35 @@ public void testCombineTask() {
this.outList.clear();
}
-
+
+ @Test
+ public void testOversizedRecordCombineTask() {
+ int keyCnt = 1;
+ int valCnt = 20;
+
+ addInput(new UniformRecordGenerator(keyCnt, valCnt, true));
+ addDriverComparator(this.comparator);
+ addDriverComparator(this.comparator);
+ setOutput(this.outList);
+
+
getTaskConfig().setDriverStrategy(DriverStrategy.SORTED_GROUP_COMBINE);
+ getTaskConfig().setRelativeMemoryDriver(combine_frac);
--- End diff --
I think you cannot reduce the memory further below to enforce records to be
oversized. I think you need to change the data generator to provide you with an
oversized record. I think the tests have a `UnionIterator` where you can mix an
oversized record into the generating iterator.
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