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https://issues.apache.org/jira/browse/HDFS-4567?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Daryn Sharp updated HDFS-4567:
------------------------------
Attachment: HDFS-4567.patch
HDFS-4567.branch-23.patch
If the token is not in the UGI, then it's only fetched on demand for the first
non-token operation.
Additionally verified patch via fetchdt. Token get/renew/cancel no longer get
a token before performing the operation.
> Webhdfs does not need a token for token operations
> --------------------------------------------------
>
> Key: HDFS-4567
> URL: https://issues.apache.org/jira/browse/HDFS-4567
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: webhdfs
> Affects Versions: 2.0.0-alpha, 3.0.0, 0.23.7
> Reporter: Daryn Sharp
> Assignee: Daryn Sharp
> Attachments: HDFS-4567.branch-23.patch, HDFS-4567.patch
>
>
> Webhdfs will implicitly acquire a token to get/renew/cancel other tokens even
> though it neither needs nor uses the token. The implicit token triggers a
> renewer thread for the fs which is undesirable for daemons such as oozie and
> yarn's RM.
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