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From "Aljoscha Krettek (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (FLINK-5061) Remove ContinuousEventTimeTrigger
Date Mon, 21 Nov 2016 15:52:58 GMT

    [ https://issues.apache.org/jira/browse/FLINK-5061?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15683917#comment-15683917
] 

Aljoscha Krettek commented on FLINK-5061:
-----------------------------------------

What do you mean by this?  I still think that having this trigger is not really useful because
users are easily confused as to what it does.

> Remove ContinuousEventTimeTrigger
> ---------------------------------
>
>                 Key: FLINK-5061
>                 URL: https://issues.apache.org/jira/browse/FLINK-5061
>             Project: Flink
>          Issue Type: Improvement
>          Components: Streaming
>            Reporter: Aljoscha Krettek
>            Assignee: Aljoscha Krettek
>             Fix For: 1.2.0
>
>
> The Trigger does not do what people think it does. The problem is that a watermark T
signals that we won't see elements with timestamp < T in the future. It does not signal
that we have not yet seen elements with timestamp > T. So it cannot really be used to trigger
at different stages of processing an event-time window.



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