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https://issues.apache.org/jira/browse/HIVE-11363?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14651462#comment-14651462
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Lefty Leverenz commented on HIVE-11363:
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This is fixed by HIVE-11434 (Followup for HIVE-10166: reuse existing
configurations for prewarming Spark executors).
> 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
> Labels: TODOC-SPARK, TODOC1.3
> Fix For: spark-branch, 1.3.0, 2.0.0
>
> Attachments: HIVE-11363.1-spark.patch, HIVE-11363.2-spark.patch,
> HIVE-11363.3-spark.patch, HIVE-11363.4-spark.patch, HIVE-11363.5-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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