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https://issues.apache.org/jira/browse/HDFS-4548?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Daryn Sharp updated HDFS-4548:
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Attachment: HDFS-4548.patch
HDFS-4548.branch-23.patch
Webhdfs is only using an authenticated url connection for token operations
which relatively speaking don't occur very often esp. from a client - once for
"hadoop fs" and once for job submission. The simplest solution is to SPNEGO
negotiate the token connections.
This patch will intersect with HDFS-3367 so I am not submitting since I will
need to amend it.
> 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: Critical
> Attachments: HDFS-4548.branch-23.patch, HDFS-4548.branch-23.patch,
> HDFS-4548.branch-23.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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