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