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Posted to issues@flink.apache.org by "Stephan Ewen (JIRA)" <ji...@apache.org> on 2019/02/14 09:43:00 UTC

[jira] [Resolved] (FLINK-5387) Lightweight Event Time Window

     [ https://issues.apache.org/jira/browse/FLINK-5387?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Stephan Ewen resolved FLINK-5387.
---------------------------------
    Resolution: Duplicate

> Lightweight Event Time Window
> -----------------------------
>
>                 Key: FLINK-5387
>                 URL: https://issues.apache.org/jira/browse/FLINK-5387
>             Project: Flink
>          Issue Type: Improvement
>          Components: DataStream API
>    Affects Versions: 1.1.3
>            Reporter: Syinchwun Leo
>            Priority: Major
>
> When a new data coming and insert into Event Time Window, windowSize/slide subWindows are generated. and the data is copied to all of these subWindows. When the value of windowSize/slide is very big, redundancy is large, and this will slow the RocksDB's checkpoint. Event Window should redesigned, and candidate design is similar as Session window, only generating a pane(aligned with slide) when a new data come instead of generating a series of subWindows 



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