Github user fhueske commented on a diff in the pull request:
https://github.com/apache/flink/pull/1255#discussion_r43008448
--- Diff:
flink-optimizer/src/main/java/org/apache/flink/optimizer/plantranslate/JobGraphGenerator.java
---
@@ -1138,12 +1138,13 @@ private DistributionPattern
connectJobVertices(Channel channel, int inputNumber,
if (channel.getShipStrategy() ==
ShipStrategyType.PARTITION_RANGE) {
- final DataDistribution dataDistribution =
channel.getDataDistribution();
+ DataDistribution dataDistribution =
channel.getDataDistribution();
if (dataDistribution != null) {
sourceConfig.setOutputDataDistribution(dataDistribution, outputIndex);
} else {
- throw new RuntimeException("Range partitioning
requires data distribution");
- // TODO: inject code and configuration for
automatic histogram generation
--- End diff --
As the TODO comment says, here should go the sampling and distribution
building code :-)
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