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https://issues.apache.org/jira/browse/YARN-8079?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16417816#comment-16417816
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Eric Yang edited comment on YARN-8079 at 3/29/18 7:57 PM:
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[~leftnoteasy] For accessing remote HDFS, it requires username + password of
the remote cluster, and the cluster has a way to contact to remote cluster KDC
server to verify the user. I don't think Hadoop supports
hdfs://user:pass@cluster:port/path. I think remoteFile throw me off in
thinking to access another HDFS other than current cluster. Sorry for the
confusion. For S3, s3://ID:SECRET@BUCKET/ maybe this works.
was (Author: eyang):
[~leftnoteasy] For accessing remote HDFS, it requires username + password of
the remote cluster, and the cluster has a way to contact to remote cluster KDC
server to verify the user. I don't think Hadoop supports
hdfs://user:pass@cluster:port/path. I think remoteFile throw me off in
thinking to access another HDFS other than current cluster. Sorry for the
confusion. For S3, s3://ID:SECRET@BUCKET/ maybe this works. +1 for patch 3.
> 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
> Priority: Blocker
> Attachments: YARN-8079.001.patch, YARN-8079.002.patch,
> YARN-8079.003.patch, YARN-8079.004.patch, YARN-8079.005.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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