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Posted to issues@spark.apache.org by "liuxian (JIRA)" <ji...@apache.org> on 2018/11/04 08:07:00 UTC
[jira] [Updated] (SPARK-25729) It is better to replace
`minPartitions` with `defaultParallelism` , when `minPartitions` is less
than `defaultParallelism`
[ https://issues.apache.org/jira/browse/SPARK-25729?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
liuxian updated SPARK-25729:
----------------------------
Description:
For ‘WholeTextFileInputFormat’, when `minPartitions` is less than `defaultParallelism`,
it is better to replace `minPartitions` with `defaultParallelism` , because this can make better use of resources and improve parallelism.
was:
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 parallelism.
> 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
>
> For ‘WholeTextFileInputFormat’, when `minPartitions` is less than `defaultParallelism`,
> it is better to replace `minPartitions` with `defaultParallelism` , because this can make better use of resources and improve parallelism.
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