Github user aljoscha commented on a diff in the pull request:
https://github.com/apache/flink/pull/3514#discussion_r105648422
--- Diff:
flink-streaming-java/src/main/java/org/apache/flink/streaming/api/operators/InternalWatermarkCallbackService.java
---
@@ -58,7 +59,17 @@
* An array of sets of keys keeping the registered keys split
* by the key-group they belong to. Each key-group has one set.
*/
- private final Set<K>[] keysByKeygroup;
+ private final Set<K>[] registeredKeysByKeyGroup;
+
+ /**
+ * An array of sets of keys keeping the keys "to delete" split
+ * by the key-group they belong to. Each key-group has one set.
+ * <p>
--- End diff --
IMHO, the formatting on paragraphs should be:
```
Some text bla bla black
<p>Other Text sdfasfaf
```
on the other hand, we don't have a style guide on that and no checkstyle
for checking it .... ð
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