[jira] [Updated] (YUNIKORN-201) [Umbrella] Application tracking API and CRD

["Weiwei Yang (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/YUNIKORN-201?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Weiwei Yang updated YUNIKORN-201:
---------------------------------
    Summary: [Umbrella] Application tracking API and CRD  (was: Application tracking API and CRD)

> [Umbrella] Application tracking API and CRD
> -------------------------------------------
>
>                 Key: YUNIKORN-201
>                 URL: https://issues.apache.org/jira/browse/YUNIKORN-201
>             Project: Apache YuniKorn
>          Issue Type: New Feature
>          Components: core - scheduler, scheduler-interface, shim - kubernetes
>            Reporter: Weiwei Yang
>            Assignee: Kinga Marton
>            Priority: Major
>
> Today, YK works behind the scene, and the workflow is like
>  # app operator or job server launch a bunch of pods on K8s
>  # YK gets notified and group pods to apps based on appID
>  # YK schedules the pods with respect to the app info
> This provides a simple model to integrate with existing K8s and to support workloads, but it has some user experience issues. Such as
>  # YK can hardly manage the app lifecycle end to end. An outstanding issue is we do not know when an app is finished if we only look at the pod status. 
>  # YK doesn't have ability to admit apps. We need the ability to admit app based on various conditions, e.g resource quota, cluster overhead, ACL, etc. 
>  # Hard to track app status. Sometimes app might be pending in resource queues, but we do not have a good way to expose such status info.
> To further improve the user experience, we need to introduce an application tracking API and K8s custom resource definition (CRD). The CRD will be used by app operator/job server to interact with YK, to get the lifecycle fully controlled.



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