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Posted to issues@yunikorn.apache.org by "Wilfred Spiegelenburg (Jira)" <ji...@apache.org> on 2022/02/24 03:40:00 UTC

[jira] [Updated] (YUNIKORN-1091) node capacity update not updated in cache

     [ https://issues.apache.org/jira/browse/YUNIKORN-1091?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Wilfred Spiegelenburg updated YUNIKORN-1091:
--------------------------------------------

Looking at the changes on the k8shim side in this area we have a dependency. YUNIKORN-1052 will make changes in the same code as this impacts. Please make sure that those changes are pulled in before starting the change.

> node capacity update not updated in cache
> -----------------------------------------
>
>                 Key: YUNIKORN-1091
>                 URL: https://issues.apache.org/jira/browse/YUNIKORN-1091
>             Project: Apache YuniKorn
>          Issue Type: Bug
>          Components: shim - kubernetes
>            Reporter: Wilfred Spiegelenburg
>            Assignee: Manikandan R
>            Priority: Critical
>
> {{ctx.updateNode()}}  gets called by the K8s client event handling. This updates the two caches using two calls:
>  # {{ctx.schedulerCache.UpdateNode()}}
>  # {{ctx.nodes.updateNode()}} 
> The first call adds the node (type _framework.NodeInfo_) if it does not exist and otherwise replaces the entry in the cache with the new info (GOOD)
> The second call adds the node (type _SchedulerNode_) if it does no exist to (GOOD). If the node exists it checks for a resource change.  The call results in a notification of the scheduler core. It does NOT update the secondary cache with this change. This leaves the SchedulerNode capacity unchanged and out of sync.



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