[ 
https://issues.apache.org/jira/browse/FLINK-34143?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17808423#comment-17808423
 ] 

Zhu Zhu commented on FLINK-34143:
---------------------------------

[~xiasun]Assigned. Feel free to open a PR for it.

> Modify the effective strategy of 
> `execution.batch.adaptive.auto-parallelism.default-source-parallelism`
> -------------------------------------------------------------------------------------------------------
>
>                 Key: FLINK-34143
>                 URL: https://issues.apache.org/jira/browse/FLINK-34143
>             Project: Flink
>          Issue Type: Improvement
>          Components: Runtime / Coordination
>    Affects Versions: 1.19.0
>            Reporter: xingbe
>            Assignee: xingbe
>            Priority: Major
>
> Currently, if users do not set the 
> `{{{}execution.batch.adaptive.auto-parallelism.default-source-parallelism`{}}}
>  configuration option, the AdaptiveBatchScheduler defaults to a parallelism 
> of 1 for source vertices. In 
> [FLIP-379|https://cwiki.apache.org/confluence/display/FLINK/FLIP-379%3A+Dynamic+source+parallelism+inference+for+batch+jobs#FLIP379:Dynamicsourceparallelisminferenceforbatchjobs-IntroduceDynamicParallelismInferenceinterfaceforSource],
>  the value of 
> `{{{}execution.batch.adaptive.auto-parallelism.default-source-parallelism`{}}}
>  will act as the upper bound for inferring dynamic source parallelism, and 
> continuing with the current policy is no longer appropriate.
> We plan to change the effectiveness strategy of 
> `{{{}execution.batch.adaptive.auto-parallelism.default-source-parallelism`{}}};
>  when the user does not set this config option, we will use the value of 
> `{{{}execution.batch.adaptive.auto-parallelism.max-parallelism`{}}} as the 
> upper bound for source parallelism inference. If 
> {{`execution.batch.adaptive.auto-parallelism.max-parallelism`}} is also not 
> configured, the value of `{{{}parallelism.default`{}}} will be used as a 
> fallback.



--
This message was sent by Atlassian Jira
(v8.20.10#820010)

Reply via email to