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Posted to dev@yunikorn.apache.org by "Wilfred Spiegelenburg (Jira)" <ji...@apache.org> on 2026/01/29 10:32:00 UTC

[jira] [Created] (YUNIKORN-3215) Improve performance of Limit checking

Wilfred Spiegelenburg created YUNIKORN-3215:
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             Summary: Improve performance of Limit checking
                 Key: YUNIKORN-3215
                 URL: https://issues.apache.org/jira/browse/YUNIKORN-3215
             Project: Apache YuniKorn
          Issue Type: Improvement
          Components: core - common
            Reporter: Wilfred Spiegelenburg
            Assignee: Wilfred Spiegelenburg


When adding large numbers of Limits (users and or group quotas) to configured queues the validation code performance drops dramatically.

The issue causing processing to slow down seems to be linked to the amount of garbage that gets generated. In small deployments with a regular updates it pushes the up the overall memory usage and could cause CPU starvation for the scheduler.

A large number of queues, 1500+ queues were tested, has limited to no real impact on the performance of the validations. Large numbers of limits set on non leaf seem to have the biggest impact.

 



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