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Posted to issues@flink.apache.org by "Gary Yao (JIRA)" <ji...@apache.org> on 2018/10/12 06:59:00 UTC

[jira] [Assigned] (FLINK-10506) Introduce minimum, target and maximum parallelism to JobGraph

     [ https://issues.apache.org/jira/browse/FLINK-10506?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Gary Yao reassigned FLINK-10506:
--------------------------------

    Assignee: Gary Yao

> Introduce minimum, target and maximum parallelism to JobGraph
> -------------------------------------------------------------
>
>                 Key: FLINK-10506
>                 URL: https://issues.apache.org/jira/browse/FLINK-10506
>             Project: Flink
>          Issue Type: Sub-task
>          Components: JobManager
>    Affects Versions: 1.7.0
>            Reporter: Till Rohrmann
>            Assignee: Gary Yao
>            Priority: Major
>             Fix For: 1.7.0
>
>
> In order to run a job with a variable parallelism, one needs to be able to define the minimum and maximum parallelism for an operator as well as the current target value. In the first implementation, minimum could be 1 and maximum the max parallelism of the operator if no explicit parallelism has been specified for an operator. If a parallelism p has been specified (via setParallelism(p)), then minimum = maximum = p. The target value could be the command line parameter -p or the default parallelism.



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