Sampada Dehankar created HIVE-22103:
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Summary: 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: Sampada Dehankar
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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