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https://issues.apache.org/jira/browse/FLINK-17917?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Till Rohrmann closed FLINK-17917.
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> ResourceInformationReflector#getExternalResources should ignore the external
> resource with a value of 0
> -------------------------------------------------------------------------------------------------------
>
> Key: FLINK-17917
> URL: https://issues.apache.org/jira/browse/FLINK-17917
> Project: Flink
> Issue Type: Bug
> Components: Runtime / Coordination
> Affects Versions: 1.11.0
> Reporter: Yangze Guo
> Assignee: Yangze Guo
> Priority: Blocker
> Labels: pull-request-available
> Fix For: 1.11.0
>
>
> *Background*: In FLINK-17390, we leverage
> {{WorkerSpecContainerResourceAdapter.InternalContainerResource}} to handle
> container matching logic. In FLINK-17407, we introduce external resources in
> {{WorkerSpecContainerResourceAdapter.InternalContainerResource}}.
> On containers returned by Yarn, we try to get the corresponding worker specs
> by:
> - Convert the container to {{InternalContainerResource}}
> - Get the WorkerResourceSpec from {{containerResourceToWorkerSpecs}} map.
> *Problem*: Container mismatch could happen in the below scenario:
> - Flink does not allocate any external resources, the {{externalResources}}
> of {{InternalContainerResource}} is an empty map.
> - The returned container contains all the resources (with a value of 0)
> defined in Yarn's {{resource-types.xml}}. The {{externalResources}} of
> {{InternalContainerResource}} has one or more entries with a value of 0.
> - These two {{InternalContainerResource}} do not match.
> To solve this problem, we could ignore all the external resources with a
> value of 0 in "ResourceInformationReflector#getExternalResources".
> cc [~trohrmann] Could you assign this to me?
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