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Posted to issues@flink.apache.org by "Chesnay Schepler (JIRA)" <ji...@apache.org> on 2019/05/24 07:34:00 UTC

[jira] [Updated] (FLINK-12299) Reject negative auto watermark intervals

     [ https://issues.apache.org/jira/browse/FLINK-12299?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Chesnay Schepler updated FLINK-12299:
-------------------------------------
    Component/s:     (was: Runtime / Operators)

> Reject negative auto watermark intervals
> ----------------------------------------
>
>                 Key: FLINK-12299
>                 URL: https://issues.apache.org/jira/browse/FLINK-12299
>             Project: Flink
>          Issue Type: Improvement
>          Components: API / DataStream
>            Reporter: shiwuliang
>            Priority: Major
>              Labels: pull-request-available
>          Time Spent: 20m
>  Remaining Estimate: 0h
>
> In any scenario, `autoWatermarkInterval` should not be less than or equal to zero.
> First of all, this does not correspond to the meaning of `autoWatermarkInterval`.
> Second, in the case where `autoWatermarkInterval` is less than 0, we will not be able to register ourselves in `TimestampsAndPeriodicWatermarksOperator#open`, which will result in the water level of this stream being kept at the lowest level.



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