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From "Kenneth Knowles (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (BEAM-2502) Processing time timers for expired windows are not ignored
Date Fri, 23 Jun 2017 01:05:00 GMT

    [ https://issues.apache.org/jira/browse/BEAM-2502?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16060270#comment-16060270
] 

Kenneth Knowles commented on BEAM-2502:
---------------------------------------

It turns out that this is benign, but mostly by accident. Keeping the bug open to make it
more robust.

> Processing time timers for expired windows are not ignored
> ----------------------------------------------------------
>
>                 Key: BEAM-2502
>                 URL: https://issues.apache.org/jira/browse/BEAM-2502
>             Project: Beam
>          Issue Type: Bug
>          Components: runner-core
>            Reporter: Kenneth Knowles
>            Assignee: Kenneth Knowles
>            Priority: Minor
>             Fix For: 2.1.0
>
>
> If the ReduceFnRunner receives a processing time timer for an expired window, it may
produce output even though the window is expired (and may have already sent a final output!)



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