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https://issues.apache.org/jira/browse/HDFS-4548?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13619889#comment-13619889
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Kihwal Lee commented on HDFS-4548:
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+1 The fix seems simple and straightforward.
> Webhdfs doesn't renegotiate SPNEGO token
> ----------------------------------------
>
> Key: HDFS-4548
> URL: https://issues.apache.org/jira/browse/HDFS-4548
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Affects Versions: 2.0.0-alpha, 3.0.0, 0.23.7
> Reporter: Daryn Sharp
> Assignee: Daryn Sharp
> Priority: Blocker
> Attachments: HDFS-4548.branch-23.patch, HDFS-4548.branch-23.patch,
> HDFS-4548.branch-23.patch, HDFS-4548.branch-23.patch,
> HDFS-4548.branch-23.patch, HDFS-4548.patch, HDFS-4548.patch, HDFS-4548.patch,
> HDFS-4548.patch, HDFS-4548.patch
>
>
> When the webhdfs SPNEGO token expires, the fs doesn't attempt to renegotiate
> a new SPNEGO token. This renders webhdfs unusable for daemons that are
> logged in via a keytab which would allow a new SPNEGO token to be generated.
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