StatefulSet Basics - setting update strategy to OnDelete

[brianjester]

When attempting to run this command:

kubectl patch statefulset web -p '{"spec":{"updateStrategy":{"type":"OnDelete"}}}'

I receive this message:

The StatefulSet "web" is invalid: spec.updateStrategy.rollingUpdate: Invalid value: apps.RollingUpdateStatefulSetStrategy{Partition:0, MaxUnavailable:(*intstr.IntOrString)(nil)}: only allowed for updateStrategy 'RollingUpdate'

[T-Lakshmi]

Related page: https://kubernetes.io/docs/tutorials/stateful-application/basic-stateful-set/#on-delete /language en

[subhals]

/assign

[Ritikaa96]

It is recommended to wait till the issue is accepted as valid to work on or triage is accepted before assigning it to yourself.

[Ritikaa96]

@brianjester Related: a Similar issue was discussed here and resolved. Please look into it and let us know if this solves your issue.

[sftim]

OK, let's teach setting the field to null explicitly, per https://github.com/kubernetes/kubernetes/issues/100151#issuecomment-801073848

/triage accepted /help

[k8s-ci-robot]

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In response to [this](https://github.com/kubernetes/website/issues/47038): >OK, let's teach setting the field to null explicitly, per https://github.com/kubernetes/kubernetes/issues/100151#issuecomment-801073848 > >/triage accepted >/help Instructions for interacting with me using PR comments are available [here](https://git.k8s.io/community/contributors/guide/pull-requests.md). If you have questions or suggestions related to my behavior, please file an issue against the [kubernetes-sigs/prow](https://github.com/kubernetes-sigs/prow/issues/new?title=Prow%20issue:) repository.

[sftim]

/sig apps