wanglijie95 commented on code in PR #21963:
URL: https://github.com/apache/flink/pull/21963#discussion_r1188448597
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flink-streaming-java/src/main/java/org/apache/flink/streaming/api/graph/StreamingJobGraphGenerator.java:
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@@ -205,7 +216,7 @@ private StreamingJobGraphGenerator(
this.defaultStreamGraphHasher = new StreamGraphHasherV2();
this.legacyStreamGraphHashers = Arrays.asList(new
StreamGraphUserHashHasher());
- this.jobVertices = new HashMap<>();
+ this.jobVertices = new LinkedHashMap<>();
Review Comment:
Yes, it's needed, because we hope to set vertex/operator
parallelisms/outputs in the same order as vertices' creation. I
I think the changes of order will not have any negative impacts ?
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