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Posted to commits@beam.apache.org by "Kenneth Knowles (JIRA)" <ji...@apache.org> on 2017/05/16 17:20:04 UTC

[jira] [Updated] (BEAM-163) When a PCollection (via Window.into) has smaller allowedLateness than upstream, might lose data

     [ https://issues.apache.org/jira/browse/BEAM-163?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Kenneth Knowles updated BEAM-163:
---------------------------------
    Summary: When a PCollection (via Window.into) has smaller allowedLateness than upstream, might lose data  (was: Warn the user when a PCollection (via Window.into) has smaller allowedLateness than upstream)

> When a PCollection (via Window.into) has smaller allowedLateness than upstream, might lose data
> -----------------------------------------------------------------------------------------------
>
>                 Key: BEAM-163
>                 URL: https://issues.apache.org/jira/browse/BEAM-163
>             Project: Beam
>          Issue Type: Bug
>          Components: sdk-java-core
>            Reporter: Kenneth Knowles
>              Labels: windowing
>
> In this situation, data may be dropped downstream even though it was allowed upstream. It is probably quite rare that this is desirable.



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