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https://issues.apache.org/jira/browse/HIVE-22103?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Richard Zhang resolved HIVE-22103.
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Resolution: Not A Bug
> Yarn-Service is not launched with higher priority by HS2
> --------------------------------------------------------
>
> Key: HIVE-22103
> URL: https://issues.apache.org/jira/browse/HIVE-22103
> Project: Hive
> Issue Type: Task
> Components: HiveServer2, llap
> Affects Versions: 3.1.0
> Reporter: Sampada Dehankar
> Assignee: Richard Zhang
> Priority: Major
>
> In Hive 3.x, Yarn-Service is used to launch llap-daemons. If a container
> (llap-daemon) is killed and there are pending Tez AMs, the llap-daemon
> container might not get launched as the available resources can be utilized
> by Tez AMs.
> This happens as Yarn-Service and Tez AMs both are launched with the same Yarn
> Application priority (0). Due to this, which of the two would get the
> resource is uncertain.
> In the previous versions on Hive, this issue was not present as Slider was
> launched with priority 1. And Tez AMs are launched with priority 0.
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