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https://issues.apache.org/jira/browse/HDFS-7984?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14560039#comment-14560039
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Anthony Hsu commented on HDFS-7984:
-----------------------------------
Actually, it seems that WebHdfsFileSystem *does* use the tokens in
{{HADOOP_TOKEN_FILE_LOCATION}} (under the hood, it's all handled by
{{UserGroupInformation}}). My mistake earlier was that I was fetching
delegation tokens for {{hdfs://}} rather than {{webhdfs://}}. Once I fixed
this, setting {{HADOOP_TOKEN_FILE_LOCATION}} worked as expected.
> webhdfs:// needs to support provided delegation tokens
> ------------------------------------------------------
>
> Key: HDFS-7984
> URL: https://issues.apache.org/jira/browse/HDFS-7984
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: webhdfs
> Affects Versions: 3.0.0
> Reporter: Allen Wittenauer
> Priority: Blocker
>
> When using the webhdfs:// filesystem (especially from distcp), we need the
> ability to inject a delegation token rather than webhdfs initialize its own.
> This would allow for cross-authentication-zone file system accesses.
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