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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (FLINK-5980) Expose max-parallelism value in RuntimeContext
Date Fri, 10 Mar 2017 10:03:04 GMT

    [ https://issues.apache.org/jira/browse/FLINK-5980?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15904826#comment-15904826
] 

ASF GitHub Bot commented on FLINK-5980:
---------------------------------------

Github user StephanEwen commented on the issue:

    https://github.com/apache/flink/pull/3487
  
    I think this looks good now, merging this...


> Expose max-parallelism value in RuntimeContext
> ----------------------------------------------
>
>                 Key: FLINK-5980
>                 URL: https://issues.apache.org/jira/browse/FLINK-5980
>             Project: Flink
>          Issue Type: Improvement
>          Components: DataStream API
>            Reporter: Biao Liu
>            Assignee: Biao Liu
>            Priority: Minor
>
> I am implementing a custom source function. I want to keep all progresses in a ListState
to support dynamically scaling just like what FlinkKafkaConsumer did. And I think the max-parallelism
value is ideal length for the ListState in my scenario. But I realize that currently the max-parallelism
value is not visible to UDF. 
> I propose exposing the max-parallelism value in RuntimeContext. It will be useful in
dynamically scaling scenario.



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