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From "Gour Saha (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-8079) Support specify files to be downloaded (localized) before containers launched by YARN
Date Thu, 03 May 2018 18:06:00 GMT

    [ https://issues.apache.org/jira/browse/YARN-8079?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16462876#comment-16462876
] 

Gour Saha commented on YARN-8079:
---------------------------------

I agree that STATIC is not fitting well. I like FILE. Does PLAIN fit the profile better?

[~suma.shivaprasad] few minor comments -
1. Please remove the unnecessary import and new line changes in Component.java and TestYarnNativeServices.java.
2. In the description of type for ConfigFile in YarnServiceAPI.md make "STATIC/ARCHIVE" lowercase
to be in-line with the others. Also put a period at the end of the sentence.

> 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, YARN-8079.008.patch, YARN-8079.009.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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