[jira] [Created] (YARN-8079) YARN native service should respect source file of ConfigFile inside Service/Component spec

["Wangda Tan (JIRA)" <ji...@apache.org>]

Wangda Tan created YARN-8079:
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             Summary: YARN native service should respect source file of ConfigFile inside Service/Component spec
                 Key: YARN-8079
                 URL: https://issues.apache.org/jira/browse/YARN-8079
             Project: Hadoop YARN
          Issue Type: Bug
            Reporter: Wangda Tan
            Assignee: Wangda Tan


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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