Github user aljoscha commented on a diff in the pull request:
https://github.com/apache/flink/pull/2093#discussion_r66787496
--- Diff:
flink-streaming-java/src/main/java/org/apache/flink/streaming/runtime/operators/windowing/WindowOperator.java
---
@@ -129,6 +130,12 @@
*/
protected final TypeSerializer<W> windowSerializer;
+ /**
+ * The allowed lateness for elements.
--- End diff --
This needs to be updated. The allowed lateness is used both for dropping of
late elements (based on the window into which they fall) and garbage collection
of window state). The default is not set in this operator but in
`WindowedStream`.
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