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From "Gary Yao (JIRA)" <j...@apache.org>
Subject [jira] [Assigned] (FLINK-10506) Introduce minimum, target and maximum parallelism to JobGraph
Date Sun, 03 Mar 2019 17:43:00 GMT

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

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

    Assignee:     (was: 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: Runtime / Coordination
>    Affects Versions: 1.7.0
>            Reporter: Till Rohrmann
>            Priority: Major
>             Fix For: 1.8.0
>
>
> 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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