[
https://issues.apache.org/jira/browse/SPARK-23005?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Apache Spark reassigned SPARK-23005:
------------------------------------
Assignee: (was: Apache Spark)
> Improve RDD.take on small number of partitions
> ----------------------------------------------
>
> Key: SPARK-23005
> URL: https://issues.apache.org/jira/browse/SPARK-23005
> Project: Spark
> Issue Type: Improvement
> Components: Spark Core
> Affects Versions: 2.2.1
> Reporter: Gengliang Wang
>
> In current implementation of RDD.take, we overestimate the number of
> partitions we need to try by 50%:
> `(1.5 * num * partsScanned / buf.size).toInt`
> However, when the number is small, the result of `.toInt` is not what we
> want.
> E.g, 2.9 will become 2, which should be 3.
> Use math.Ceil fix the problem.
--
This message was sent by Atlassian JIRA
(v6.4.14#64029)
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
