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https://issues.apache.org/jira/browse/SPARK-18379?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Yin Huai resolved SPARK-18379.
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Resolution: Fixed
Fix Version/s: 2.2.0
Issue resolved by pull request 15829
[https://github.com/apache/spark/pull/15829]
> Make the parallelism of parallelPartitionDiscovery configurable.
> -----------------------------------------------------------------
>
> Key: SPARK-18379
> URL: https://issues.apache.org/jira/browse/SPARK-18379
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 2.0.1
> Reporter: Genmao Yu
> Priority: Minor
> Fix For: 2.2.0
>
>
> The largest parallelism in PartitioningAwareFileIndex
> #listLeafFilesInParallel() is 10000 in hard code. We may need to make this
> number configurable. And in PR, I reduce it to 100.
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