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https://issues.apache.org/jira/browse/HIVE-12951?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15120609#comment-15120609
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Xuefu Zhang commented on HIVE-12951:
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Hi [~lirui], thanks for the information. Yes, these seem very relevant.
However, I'm not 100% sure if they are equivalent. Looking the description of
the first property, I'm not sure what's "expected resources". In Hive, user can
specify the number of containers (executors) to prewarm (refer to HIVE-11363).
Yes, this is used to set higher parallelism by waiting briefly, which is
important for performance for short-lived user sessions.
> Reduce Spark executor prewarm timeout to 5s
> -------------------------------------------
>
> Key: HIVE-12951
> URL: https://issues.apache.org/jira/browse/HIVE-12951
> Project: Hive
> Issue Type: Bug
> Components: Spark
> Affects Versions: 1.2.0
> Reporter: Xuefu Zhang
> Assignee: Xuefu Zhang
> Attachments: HIVE-12951.patch
>
>
> Currently it's set to 30s, which tends to be longer than needed. Reduce it to
> 5s, only considering jvm startup time. (Eventually, we may want to make this
> configurable.)
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