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https://issues.apache.org/jira/browse/YUNIKORN-2068?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Craig Condit resolved YUNIKORN-2068.
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Fix Version/s: 1.4.0
Resolution: Fixed
Merged to master.
> Deadlock when evaluating nodes for preemption
> ---------------------------------------------
>
> Key: YUNIKORN-2068
> URL: https://issues.apache.org/jira/browse/YUNIKORN-2068
> Project: Apache YuniKorn
> Issue Type: Bug
> Components: shim - kubernetes
> Reporter: Craig Condit
> Assignee: Craig Condit
> Priority: Blocker
> Labels: pull-request-available
> Fix For: 1.4.0
>
>
> During preemption predicate checks, we have a read lock that can be acquired
> multiple times without releasing, leading to deadlocks. Problematic ocde is
> in context.IsPodFitNodeViaPreemption(), where ctx.schedulerCache.GetPod() is
> called after ctx.schedulerCache.LockForReads(). Both functions acquire the
> cache rlock.
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