Per-item scaling based on metric labels (Prometheus Scaler)

[curtisraymond]

Proposal

I'm looking to optimize my current ScaledJob configuration so that when multiple PostgreSQL PVCs exceed a usage threshold, a separate job is launched for each PVC rather than processing them sequentially within a single job. This would improve efficiency and parallelism in resizing PVCs.

My current understanding is that KEDA's ScaledJob with the Prometheus scaler doesn't natively support per-item scaling based on metric labels (e.g., PVC names). This means I can't directly create multiple jobs, each with a different PVC name, based on the metric labels returned from the Prometheus query.

Use-Case

No response

Is this a feature you are interested in implementing yourself?

No

Anything else?

No response

[JorTurFer]

Hello
That's correct, KEDA doesn't support changing the PVC name as it doesn't modify the workload at all.

[curtisraymond]

@JorTurFer, I'm not trying to change the PVC name. Instead, I'm aiming to resize the PVC using a KEDA ScaledJob that targets PVCs based on their labels, so it knows which PVC to modify. However, I may have multiple PVCs that currently exceed the specified threshold parameter in the ScaledJob, and therefore each will need to be resized.