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https://issues.apache.org/jira/browse/HIVE-11363?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Xuefu Zhang updated HIVE-11363:
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Attachment: HIVE-11363.1-spark.patch
> Prewarm Hive on Spark containers [Spark Branch]
> -----------------------------------------------
>
> Key: HIVE-11363
> URL: https://issues.apache.org/jira/browse/HIVE-11363
> Project: Hive
> Issue Type: Sub-task
> Components: Spark
> Affects Versions: 1.1.0
> Reporter: Xuefu Zhang
> Assignee: Xuefu Zhang
> Attachments: HIVE-11363.1-spark.patch
>
>
> When Hive job is launched by Oozie, a Hive session is created and job script
> is executed. Session is closed when Hive job is completed. Thus, Hive session
> is not shared among Hive jobs either in an Oozie workflow or across
> workflows. Since the parallelism of a Hive job executed on Spark is impacted
> by the available executors, such Hive jobs will suffer the executor ramp-up
> overhead. The idea here is to wait a bit so that enough executors can come up
> before a job can be executed.
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