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https://issues.apache.org/jira/browse/YUNIKORN-3332?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ompal Singh updated YUNIKORN-3332:
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Description:
On restart we should not create placeholders that are already timed-out. In
certain restart scenarios we could be creating a placeholder that is already
timed out.
* Stop YuniKorn
* Create a pod with gang definition and a short placeholder timeout
* Start YuniKorn
If the time between the pod creation and the start of YuniKorn is longer than
the timeout the placeholders will immediately timeout on allocation.
We have two choices:
* not create the placeholders and directly push the real pod
* set the time out based on the restart time of YuniKorn
We must only do that for newly created placeholders not for existing ones.
was:
The REST object for the queue does not expose the new attributes for the queues
for ask back off and quota preemption.
We should expose these 4 in the REST object:
* quotaPreemptionStartTime time.Time
* isQuotaPreemptionRunning bool
* unschedAskBackoff uint64
* askBackoffDelay time.Duration
> Prevent timed out Placeholder creation
> --------------------------------------
>
> Key: YUNIKORN-3332
> URL: https://issues.apache.org/jira/browse/YUNIKORN-3332
> Project: Apache YuniKorn
> Issue Type: Task
> Components: core - common
> Reporter: Ompal Singh
> Assignee: Ompal Singh
> Priority: Major
> Labels: newbie, pull-request-available
>
> On restart we should not create placeholders that are already timed-out. In
> certain restart scenarios we could be creating a placeholder that is already
> timed out.
> * Stop YuniKorn
> * Create a pod with gang definition and a short placeholder timeout
> * Start YuniKorn
> If the time between the pod creation and the start of YuniKorn is longer than
> the timeout the placeholders will immediately timeout on allocation.
> We have two choices:
> * not create the placeholders and directly push the real pod
> * set the time out based on the restart time of YuniKorn
> We must only do that for newly created placeholders not for existing ones.
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