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Posted to issues@beam.apache.org by "Kenneth Knowles (Jira)" <ji...@apache.org> on 2021/03/31 19:47:00 UTC

[jira] [Updated] (BEAM-9312) Make MonotonicWatermarkEstimator configurable for whether to ignore late timestamp.

     [ https://issues.apache.org/jira/browse/BEAM-9312?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Kenneth Knowles updated BEAM-9312:
----------------------------------
    Status: Open  (was: Triage Needed)

> Make MonotonicWatermarkEstimator configurable for whether to ignore late timestamp.
> -----------------------------------------------------------------------------------
>
>                 Key: BEAM-9312
>                 URL: https://issues.apache.org/jira/browse/BEAM-9312
>             Project: Beam
>          Issue Type: Improvement
>          Components: sdk-py-core, sdk-py-harness
>            Reporter: Boyuan Zhang
>            Priority: P3
>
> Current implementation of MonotonicWatermarkEstimator throws error and stop the pipeline  when there is a late timestamp. But there are more potential options like:
> (1) Suppress the error and emit the item as possibly late data.
> (2) Move the timestamp forward to respect the watermark.
> We should consider making MonotonicWatermarkEstimator configurable with these options, or  providing different types of MonotonicWatermarkEstimator  to handle different options.



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