[jira] [Commented] (SPARK-25729) It is better to replace `minPartitions` with `defaultParallelism` , when `minPartitions` is less than `defaultParallelism`

["Apache Spark (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/SPARK-25729?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16649827#comment-16649827 ] 

Apache Spark commented on SPARK-25729:
--------------------------------------

User '10110346' has created a pull request for this issue:
https://github.com/apache/spark/pull/22723

> It is better to replace `minPartitions` with `defaultParallelism` , when `minPartitions` is less than `defaultParallelism`
> --------------------------------------------------------------------------------------------------------------------------
>
>                 Key: SPARK-25729
>                 URL: https://issues.apache.org/jira/browse/SPARK-25729
>             Project: Spark
>          Issue Type: Improvement
>          Components: Spark Core
>    Affects Versions: 2.4.0
>            Reporter: liuxian
>            Priority: Minor
>
> In ‘WholeTextFileRDD’，when `minPartitions` is less than `defaultParallelism`，
> it is better to replace `minPartitions` with `defaultParallelism` , because this can make better use of resources and improve concurrency.



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