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https://issues.apache.org/jira/browse/YUNIKORN-677?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Wilfred Spiegelenburg resolved YUNIKORN-677.
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Resolution: Fixed
> Potential resource leak when complete and allocate pod happens simultaneously
> -----------------------------------------------------------------------------
>
> Key: YUNIKORN-677
> URL: https://issues.apache.org/jira/browse/YUNIKORN-677
> Project: Apache YuniKorn
> Issue Type: Bug
> Reporter: Weiwei Yang
> Assignee: Weiwei Yang
> Priority: Blocker
> Labels: pull-request-available
> Fix For: 0.11
>
>
> Let's say we have an app that has 1 pod needs for scheduling. The shim
> submits an app to the core, and start the schedule the pod. In the shim side,
> this is a task in the Scheduling state. Then we have a race if the following
> things happen simultaneously:
> # User deletes the pod, this triggers a CompleteTask event in the shim side,
> and the shim will send a ReleaseAllocationAskRequest to the core.
> # Before handling the ReleaseAllocationAskRequest from the shim, the core
> made an allocation for the given pod and send an Allocation to the shim
> then the core generates an allocation on a node, core receives the release
> request and deletes the pending ask; the shim side receives the new
> allocation, but since the pod has already been deleted so the shim ignores
> this allocation. In this case, the allocation will be left-over causing the
> resource leak.
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