[jira] [Created] (FLINK-40105) Support configuring Kubernetes memory request factor for JobManager and TaskManager

["xiechenling (Jira)" <ji...@apache.org>]

xiechenling created FLINK-40105:
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             Summary: Support configuring Kubernetes memory request factor for JobManager and TaskManager
                 Key: FLINK-40105
                 URL: https://issues.apache.org/jira/browse/FLINK-40105
             Project: Flink
          Issue Type: Improvement
          Components: Deployment / Kubernetes
            Reporter: xiechenling


Flink Kubernetes deployments currently support configuring memory limit factors for JobManager and TaskManager resources, but memory requests are always set to the full configured process memory.

This makes it hard to run clusters where Kubernetes memory requests should be lower than memory limits while preserving the existing limit behavior.

This improvement adds two Kubernetes configuration options:

- kubernetes.jobmanager.memory.request-factor
- kubernetes.taskmanager.memory.request-factor

Both options default to 1.0 to preserve the current behavior. Valid values are greater than 0 and less than or equal to 1.

The generated Kubernetes resource request memory is calculated as configured memory * memory request factor. Memory limits continue to use the existing memory limit factor.



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