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https://issues.apache.org/jira/browse/HDFS-4548?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13593795#comment-13593795
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Daryn Sharp commented on HDFS-4548:
-----------------------------------
I thought about allowing a token to be reset, but its {{hashCode}} is based on
the token. Come to think of it, it's a bug that the hash code is 0 if not set,
but changes once set.
The SPNEGO token is used for getting (GET) & renewing (PUT) delegation tokens,
so why should we only retry on GET?
> Webhdfs doesn't renegotiate SPNEGO token
> ----------------------------------------
>
> Key: HDFS-4548
> URL: https://issues.apache.org/jira/browse/HDFS-4548
> Project: Hadoop HDFS
> Issue Type: Bug
> 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.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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