[jira] [Commented] (FLINK-13062) Set ScheduleMode based on boundedness of streaming Pipeline

["Aljoscha Krettek (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/FLINK-13062?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16877026#comment-16877026 ] 

Aljoscha Krettek commented on FLINK-13062:
------------------------------------------

[https://github.com/apache/flink/pull/8951]

> Set ScheduleMode based on boundedness of streaming Pipeline
> -----------------------------------------------------------
>
>                 Key: FLINK-13062
>                 URL: https://issues.apache.org/jira/browse/FLINK-13062
>             Project: Flink
>          Issue Type: Improvement
>          Components: API / DataStream
>            Reporter: Aljoscha Krettek
>            Assignee: Aljoscha Krettek
>            Priority: Major
>
> The new Blink-based Table Runner needs "streaming pipelines" to be executed with {{ScheduleMode.LAZY_FROM_SOURCES}} if all sources are bounded. The current Blink code base uses a global flag for this and configures the {{StreamGraphGenerator}} accordingly.
> We propose to add an {{isBounded()}} property to {{Transformation}} (formerly known as {{StreamTransformation}}). The property would only be explicitly settable on sources, other transformations inherit the property from their inputs. The {{StreamGraphGenerator}} must use {{ScheduleMode.LAZY_FROM_SOURCES}} if all sources are bounded, otherwise, it should use {{ScheduleMode.EAGER}}, as is the currently existing behaviour.



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