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https://issues.apache.org/jira/browse/YARN-5177?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Emeka updated YARN-5177:
Attachment: YARN-5177-V0.patch
> Make Node-Manager Download-Resource Component extensible.
> -
>
> Key: YARN-5177
> URL: https://issues.apache.org/jira/browse/YARN-5177
> Project: Hadoop YARN
> Issue Type: Improvement
> Components: nodemanager
>Affects Versions: 2.7.0
>Reporter: Emeka
>Priority: Minor
> Attachments: YARN-5177-V0.patch
>
>
> Problem:
> - Downloading files to a local machine/node is called "resource-localization".
> - There are two components that perform resource-location (PublicLocalizer
> and ComponetLocalizers)
> - Both components utilizes FSDownload.class to perform their downloads.
> - We need a custom implementation of FSDownload.
> Solution:
> - With this change, we make FSDownload.class extensible by wrapping it in a
> new ResourceDownloader.interface
> - We also update the PublicLocalizer and ComponetLocalizers to load
> ResourceDownloader rather than FSDownload.
> - NOTE: We use reflection to load the right implementation during runtime.
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