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From "Aljoscha Krettek (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (FLINK-2891) Key for Keyed State is not set upon Window Evaluation
Date Thu, 22 Oct 2015 06:15:27 GMT

    [ https://issues.apache.org/jira/browse/FLINK-2891?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14968621#comment-14968621
] 

Aljoscha Krettek commented on FLINK-2891:
-----------------------------------------

I think right now it is state/key for the window function because they just use the same state
interface that all user functions use and they are not aware of windows. I think this is good,
since you can keep state across windows in the window evaluation function.

For triggers the state is per key/window.

> Key for Keyed State is not set upon Window Evaluation
> -----------------------------------------------------
>
>                 Key: FLINK-2891
>                 URL: https://issues.apache.org/jira/browse/FLINK-2891
>             Project: Flink
>          Issue Type: Sub-task
>          Components: Streaming
>    Affects Versions: 0.10
>            Reporter: Aljoscha Krettek
>            Assignee: Aljoscha Krettek
>            Priority: Blocker
>             Fix For: 0.10
>
>
> In both the aligned and the general-purpose windows the key for the keyed operator state
is not set when evaluating the windows. This silently leads to incorrect results.



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