deniskuzZ commented on code in PR #540:
URL: https://github.com/apache/tez/pull/540#discussion_r4144728476
##########
tez-runtime-library/src/test/java/org/apache/tez/runtime/library/common/shuffle/TestShuffleUtils.java:
##########
@@ -286,6 +286,36 @@ public void
testGenerateOnSpillEvent_With_All_EmptyPartitions() throws Exception
"emptyPartitionBitSet cardinality (expecting 10) = " +
emptyPartitionsBitSet.cardinality());
}
+ /**
+ * An output that never started delivers no rows, and a single-partition one
fills num_record
+ * like any other, so it joins the consumer's denominator instead of being
scaled over.
+ */
+ @Test
+ public void testNonStartedSinglePartitionOutputReportsZeroRecords() throws
Exception {
+ List<Event> events = Lists.newLinkedList();
+ ShuffleUtils.generateEventsForNonStartedOutput(events, 1, outputContext,
false, true,
+ TezCommonUtils.newBestCompressionDeflater());
+
+ ShuffleUserPayloads.DataMovementEventPayloadProto proto =
Review Comment:
done
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