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Posted to issues@spark.apache.org by "Yin Huai (JIRA)" <ji...@apache.org> on 2016/06/14 20:18:30 UTC
[jira] [Updated] (SPARK-15247) sqlCtx.read.parquet yields at least
n_executors * n_cores tasks
[ https://issues.apache.org/jira/browse/SPARK-15247?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Yin Huai updated SPARK-15247:
-----------------------------
Assignee: Takeshi Yamamuro
> 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
>
> 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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