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https://issues.apache.org/jira/browse/FLINK-4174?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15633416#comment-15633416
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ASF GitHub Bot commented on FLINK-4174:
---------------------------------------
Github user aljoscha commented on a diff in the pull request:
https://github.com/apache/flink/pull/2736#discussion_r86377048
--- Diff:
flink-streaming-java/src/main/java/org/apache/flink/streaming/api/windowing/evictors/TimeEvictor.java
---
@@ -65,11 +107,23 @@ public long getWindowSize() {
}
/**
- * Creates a {@code TimeEvictor} that keeps the given number of
elements.
- *
+ * Creates an {@code TimeEvictor} that keeps the given number of
elements.
+ * Eviction is done before the window function
* @param windowSize The amount of time for which to keep elements.
--- End diff --
Missing newline.
> Enhance Window Evictor
> ----------------------
>
> Key: FLINK-4174
> URL: https://issues.apache.org/jira/browse/FLINK-4174
> Project: Flink
> Issue Type: Sub-task
> Components: Streaming
> Reporter: vishnu viswanath
> Assignee: vishnu viswanath
>
> Enhance the current functionality of Evictor as per this [design
> document|https://docs.google.com/document/d/1Rr7xzlItYqvFXLyyy-Yv0vvw8f29QYAjm5i9E4A_JlU/edit].
> This includes:
> - Allow eviction of elements from the window in any order (not only from the
> beginning). To do this Evictor must go through the list of elements and
> remove the elements that have to be evicted instead of the current approach
> of : returning the count of elements to be removed from beginning.
> - Allow eviction to be done before/after applying the window function.
> FLIP page for this enhancement :
> [FLIP-4|https://cwiki.apache.org/confluence/display/FLINK/FLIP-4+%3A+Enhance+Window+Evictor]
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