ashangit opened a new pull request, #51096:
URL: https://github.com/apache/spark/pull/51096
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### What changes were proposed in this pull request?
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Add capability to set the [local ephemeral-storage
resource](https://kubernetes.io/docs/concepts/configuration/manage-resources-containers/#local-ephemeral-storage)
on driver and executor pods
### Why are the changes needed?
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On kubernetes when a node is low on ephemeral storage the kubelete will
killed pods using too much ephemeral storage (more than the requested one). As
driver and executor does not set any ephemeral storage they can be evicted even
if the big usage comes from other pods
Being able to set the ephemeral storage requests will ensure pods are not
evicted
### Does this PR introduce _any_ user-facing change?
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Yes added `spark.kubernetes.driver.request.ephemeral.storage` and
`spark.kubernetes.executor.request.ephemeral.storage` those 2 new configs.
But if those configs are not set the spark jobs will works as it was before
without setting the ephemeral storage
### How was this patch tested?
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Added some unittest and also deployed a spark job on our kubernetes cluster
using those parameters.
The ephemeral storage was well added to the driver and executor:
```
% k get po -o yaml test-nico-driver|grep -A 10 resources
--
resources:
limits:
cpu: "2"
ephemeral-storage: 5Gi
memory: 8692Mi
requests:
cpu: "2"
ephemeral-storage: 5Gi
memory: 8692Mi
terminationMessagePath: /dev/termination-log
terminationMessagePolicy: File
% k get po -o yaml test-nico-0aeee3973a4d6156-exec-1|grep -A 10 resources
--
resources:
limits:
cpu: "2"
ephemeral-storage: 50Gi
memory: 9716Mi
requests:
cpu: "2"
ephemeral-storage: 50Gi
memory: 9716Mi
terminationMessagePath: /dev/termination-log
terminationMessagePolicy: File
```
### Was this patch authored or co-authored using generative AI tooling?
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No
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