[YARN-10852] Optimise CSConfiguration getAllUserWeightsForQueue

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 3.4.0
• Component/s: capacity scheduler
• Labels: pull-request-available
• Hadoop Flags: Reviewed
• Assignee: Andras Gyori
• Reporter: Andras Gyori
• Created: 09/Jul/21 15:28
• Updated: 02/Mar/22 11:11
• Resolved: 10/Sep/21 15:00

Description

CapacitySchedulerConfiguration#getAllUsersWeightsForQueue is called in a O(n^2) fashion in AbstractCSQueue#setupQueueConfigs. This could be optimised by incorporating the ConfigurationProperties introduced in YARN-10838.

Issue Links

• breaks: HADOOP-18021 Provide a public wrapper of Configuration#substituteVars
• links to: GitHub Pull Request #3392