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https://issues.apache.org/jira/browse/YUNIKORN-572?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Weiwei Yang resolved YUNIKORN-572.
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Fix Version/s: 0.10
Resolution: Fixed
> terminated app move causes deadlock
> -----------------------------------
>
> Key: YUNIKORN-572
> URL: https://issues.apache.org/jira/browse/YUNIKORN-572
> Project: Apache YuniKorn
> Issue Type: Bug
> Components: core - scheduler
> Reporter: Wilfred Spiegelenburg
> Assignee: Wilfred Spiegelenburg
> Priority: Major
> Labels: pull-request-available
> Fix For: 0.10
>
>
> PR #250 for the placeholder cleanup introduced a possible dead lock.
> When moving a terminated app from the queue the queue is unlinked from the
> app. Before that happens we make sure that the queue tracking is up to date.
> This requires an application lock.
> The move used to take a lock on the partition and did all its work in one go.
> With the change to remove the queue from the app we now lock the app inside
> the partition lock. Since the app is part of the active list until the move
> is done scheduling might check the app too. This could lead to a dead lock.
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