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Posted to yarn-issues@hadoop.apache.org by "Suma Shivaprasad (JIRA)" <ji...@apache.org> on 2018/05/01 00:18:00 UTC

[jira] [Updated] (YARN-8079) Support specify files to be downloaded (localized) before containers launched by YARN

     [ https://issues.apache.org/jira/browse/YARN-8079?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Suma Shivaprasad updated YARN-8079:
-----------------------------------
    Attachment: YARN-8079.007.patch

> Support specify files to be downloaded (localized) before containers launched by YARN
> -------------------------------------------------------------------------------------
>
>                 Key: YARN-8079
>                 URL: https://issues.apache.org/jira/browse/YARN-8079
>             Project: Hadoop YARN
>          Issue Type: Bug
>            Reporter: Wangda Tan
>            Assignee: Suma Shivaprasad
>            Priority: Critical
>         Attachments: YARN-8079.001.patch, YARN-8079.002.patch, YARN-8079.003.patch, YARN-8079.004.patch, YARN-8079.005.patch, YARN-8079.006.patch, YARN-8079.007.patch
>
>
> Currently, {{srcFile}} is not respected. {{ProviderUtils}} doesn't properly read srcFile, instead it always construct {{remoteFile}} by using componentDir and fileName of {{destFile}}:
> {code}
> Path remoteFile = new Path(compInstanceDir, fileName);
> {code} 
> To me it is a common use case which services have some files existed in HDFS and need to be localized when components get launched. (For example, if we want to serve a Tensorflow model, we need to localize Tensorflow model (typically not huge, less than GB) to local disk. Otherwise launched docker container has to access HDFS.



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