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https://issues.apache.org/jira/browse/FLINK-4460?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15904878#comment-15904878
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ASF GitHub Bot commented on FLINK-4460:
---------------------------------------
Github user aljoscha commented on a diff in the pull request:
https://github.com/apache/flink/pull/3484#discussion_r105372676
--- Diff:
flink-streaming-java/src/main/java/org/apache/flink/streaming/runtime/operators/windowing/WindowOperator.java
---
@@ -419,6 +435,14 @@ public void merge(W mergeResult,
registerCleanupTimer(window);
}
}
+
+ // side output input event if
+ // element not handled by any window
+ // late arriving tag has been set
+ // windowAssigner is event time and current timestamp + allowed
lateness no less than element timestamp
+ if(isSkippedElement && lateDataOutputTag != null &&
isLate(element)) {
--- End diff --
I just added a test for the behaviour with a "weird" `WindowAssigner`.
> Side Outputs in Flink
> ---------------------
>
> Key: FLINK-4460
> URL: https://issues.apache.org/jira/browse/FLINK-4460
> Project: Flink
> Issue Type: New Feature
> Components: Core, DataStream API
> Affects Versions: 1.2.0, 1.1.3
> Reporter: Chen Qin
> Assignee: Chen Qin
> Labels: latearrivingevents, sideoutput
>
> https://docs.google.com/document/d/1vg1gpR8JL4dM07Yu4NyerQhhVvBlde5qdqnuJv4LcV4/edit?usp=sharing
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