Setting Resource Requests and Limits in Kubernetes

In this episode of Kubernetes Best Practices, Sandeep Dinesh shows how Kubernetes resource requests and limits can help you keep your containers under control.

[ToallpointsWest]

Well presented, and exactly what I was looking for Thank you!

[Shabasky]

This is just what I was studying last night! Awesome!

[laszlo.laszlo]

Hello! This's a very clear video about resources. Thank you very much. Keep going.

[danielriedl]

Thanks Sandeep, perfect presentation!

[ramonkallas]

3:07 almost spilled coffee on myself (with headphones on)

[zocratiko]

Thanks! In my case I had to use Mi as unity instead of Mib.

[genericusername]

if I'm using GKE, where do I go to evaluate how much a resource should request or be limited by?

[mefirst]

Very well presented information! Why couldn't the Kubernetes documentation just say "milli-cores" explicitly, I had to dig around to find that.

[quocnguyenanh]

thank you for such a great video. you're amazing <3

[jw]

You say the values for each container are additive. Does this mean that if I have three pods, best practice should mean that the limt of 1 needs to be split between the three pods. i.e. I currently have limit 0.5 for main pod and 0.25 for the other two. Then the same for the requests. I have 0.6 for the the main pod and 0.2 for the other two.

[NithyaNatarajnn]

Sandeep, I believe having development and production seperated by namespaces is not a good practice. The development load will affect production load. What do you think about it?

[rohitjmics]

Is there any way to restrict some core shall not be used by Kubernetes on host machines. For example Server-1 having core 0-31 where I wanted to keep 1, 2, 3, 4 CPU as isolated and core 1, 2, 3, 4 shall not be used by K8s. any configuration for this goal ?

[LukeNimtz]

too bad you can't throttle memory with swap 🤔

[manikanthkommoju]

is request and limit confined to containers or pods? because if i specify request and limit values to pod where pod have multiple containers then in that case will all the containers get adequate amount of resource?

[nagasaiponnuru]

Can you tell us what is hard limit in quota

Nice video but one thing is not so clear: How to check the resources the pods are actually using?
Lets say I have a cluster running and have assigned some resources and limits. How can I check if those values are good for my application?
kubectl top and describe give very little information that is hard to relate. Is there a good resource about this?

[riskylovers]

Here, is memory component similar to RAM only right?

[zanastumasonis]

throttling and the area between over-requested but below a hard limit is still unclear on what kubernetes really does

[johngrabner]

What about GPU resources? These are often more scarce than CPU memory of CPU cylces.

[nicks]

have we all seen shifted tabulation at 5:15 ?)