On Wed, May 3, 2017 at 12:10 PM, 'Ahmet Alp Balkan' via Kubernetes user discussion and Q&A <kubernetes-users@googlegroups.com> wrote:
> I am afraid it still does not make sense to me. > > Why is there even a concept of "Pod-level request/limit" if it is not used > anywhere? > It is used by the scheduler. Pod is the atomic unit of scheduling. > As a user, this is confusing me. As far as I can tell, I can configure > limits on the Container and if I go beyond that my *Pod* will be killed > altogether. This part is clear. However I can't tell what a Pod-level > request/limit (just a sum of things which I can't configure directly) does > on my cluster today? > > On Wed, May 3, 2017 at 11:30 AM, 'David Oppenheimer' via Kubernetes user > discussion and Q&A <kubernetes-users@googlegroups.com> wrote: > >> >> >> On Wed, May 3, 2017 at 10:47 AM, 'Ahmet Alp Balkan' via Kubernetes user >> discussion and Q&A <kubernetes-users@googlegroups.com> wrote: >> >>> Hello, I am trying to understand the Resource Limits/Requests for Pods >>> and Containers >>> <https://kubernetes.io/docs/concepts/configuration/manage-compute-resources-container/> >>> document. >>> In multiple places, the document implies that users can specify >>> ResourceRequirements *at pod-level**. *(I don't mean >>> pod.spec.containers.resources.) Most relevantly the doc says: >>> >>> A Pod resource request/limit for a particular resource type* is the sum >>>> *of the resource requests/limits of that type for each Container in >>>> the Pod. >>> >>> >> Request and limit are specified only at the per-container level. The >> system computes pod-level request and limit by adding up the request and >> limit of the containers that are inside the pod. But you can't specify it >> at the pod level yourself. >> >> Does that make sense? >> >> >> >>> >>> However I can’t find any examples or any fields on the API (kubectl >>> explain pod.spec) to specify resource requirements on the pod level. >>> >>> Any ideas if this is possible at all? This particular document is >>> particularly gives the strong impression that this feature exists today. I >>> opened this docs issue >>> <https://github.com/kubernetes/kubernetes.github.io/issues/3608> to >>> track this. >>> >>> -- >>> You received this message because you are subscribed to the Google >>> Groups "Kubernetes user discussion and Q&A" group. >>> To unsubscribe from this group and stop receiving emails from it, send >>> an email to kubernetes-users+unsubscr...@googlegroups.com. >>> To post to this group, send email to kubernetes-users@googlegroups.com. >>> Visit this group at https://groups.google.com/group/kubernetes-users. >>> For more options, visit https://groups.google.com/d/optout. >>> >> >> -- >> You received this message because you are subscribed to the Google Groups >> "Kubernetes user discussion and Q&A" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to kubernetes-users+unsubscr...@googlegroups.com. >> To post to this group, send email to kubernetes-users@googlegroups.com. >> Visit this group at https://groups.google.com/group/kubernetes-users. >> For more options, visit https://groups.google.com/d/optout. >> > > -- > You received this message because you are subscribed to the Google Groups > "Kubernetes user discussion and Q&A" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to kubernetes-users+unsubscr...@googlegroups.com. > To post to this group, send email to kubernetes-users@googlegroups.com. > Visit this group at https://groups.google.com/group/kubernetes-users. > For more options, visit https://groups.google.com/d/optout. > -- You received this message because you are subscribed to the Google Groups "Kubernetes user discussion and Q&A" group. To unsubscribe from this group and stop receiving emails from it, send an email to kubernetes-users+unsubscr...@googlegroups.com. To post to this group, send email to kubernetes-users@googlegroups.com. Visit this group at https://groups.google.com/group/kubernetes-users. For more options, visit https://groups.google.com/d/optout.
