beliefer commented on code in PR #26277:
URL: https://github.com/apache/flink/pull/26277#discussion_r1986292983


##########
flink-core/src/main/java/org/apache/flink/configuration/CoreOptions.java:
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@@ -459,7 +459,10 @@ public static String[] mergeListsToArray(List<String> 
base, List<String> append)
             ConfigOptions.key("parallelism.default")
                     .intType()
                     .defaultValue(1)
-                    .withDescription("Default parallelism for jobs.");
+                    .withDescription("Default parallelism for jobs. There is 
an exception here. When creating a"

Review Comment:
   Yes. The default is not always 1. Because remove the default value is a 
break change, so I just update the description.
   Yeah, the word exception looks weird, how about `special case`?
   I checked all the code and found two special case. I have pasted the two 
case into the PR's description.



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