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https://issues.apache.org/jira/browse/YUNIKORN-706?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17379581#comment-17379581
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Weiwei Yang commented on YUNIKORN-706:
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hi [~Yukali]
Thank for the link, it helps. Before digging into the code changes in detail. I
have a question with one more thing:
As the document said if the effective init resource request is \{memory: 1024m,
cpu: 2}, and the sum of pod container resources is \{memory: 1024m, cpu: 1}.
The pod effective resource will be \{memory: 1024m, cpu: 2}.
As a result, the pod resource in YK will be \{memory: 1024m, cpu: 2}. We use
the pod resource to compute resource quota in the queue, and the allocation for
an app and node. That means in all these places, we will consider the pod uses
\{memory: 1024m, cpu: 2}.
However, the init-container terminates before the pod containers are started.
When the pod transits to the "Running" state, what will be the resources look
like in K8s namespace resource quota and node? Will that still be the \{memory:
1024m, cpu: 2}, or \{memory: 1024m, cpu: 1}?
> Fix the resource calculation when the pod has init-containers
> -------------------------------------------------------------
>
> Key: YUNIKORN-706
> URL: https://issues.apache.org/jira/browse/YUNIKORN-706
> Project: Apache YuniKorn
> Issue Type: Bug
> Components: shim - kubernetes
> Reporter: Weiwei Yang
> Assignee: Chen Yu Teng
> Priority: Critical
> Labels: newbie
> Fix For: 1.0.0
>
>
> Init-container resources currently got skipped:
> Steps to reproduce:
> # Submit pod with init containers.
> # Check UI for app allocations. It only displays the container request of
> 50m/50M, and not the initContainer request of 100m/100M.
> {code:java}
> 9650-mbp15-rozhang:~ rozhang$ kubectl get pods -n dev
> NAME READY STATUS RESTARTS AGE
> app-4 0/1 Init:0/1 0 5s
> {code}
> From describe node, we see requests of 100m/100M, which is not the same as
> Yunikorn.
> Related doc:
> https://kubernetes.io/docs/concepts/workloads/pods/init-containers/#resources.
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