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https://issues.apache.org/jira/browse/SPARK-15247?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Yin Huai resolved SPARK-15247.
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Resolution: Fixed
Fix Version/s: 2.0.0
This issue has been resolved by https://github.com/apache/spark/pull/13137.
> sqlCtx.read.parquet yields at least n_executors * n_cores tasks
> ---------------------------------------------------------------
>
> Key: SPARK-15247
> URL: https://issues.apache.org/jira/browse/SPARK-15247
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Affects Versions: 1.6.0
> Reporter: Johnny W.
> Assignee: Takeshi Yamamuro
> Fix For: 2.0.0
>
>
> sqlCtx.read.parquet always yields at least n_executors * n_cores tasks, even
> though this is only 1 very small file
> This issue can increase the latency for small jobs.
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