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https://issues.apache.org/jira/browse/HDFS-1364?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jitendra Nath Pandey updated HDFS-1364:
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Attachment: HDFS-1364-y20.2.patch
> HFTP client should support relogin from keytab
> ----------------------------------------------
>
> Key: HDFS-1364
> URL: https://issues.apache.org/jira/browse/HDFS-1364
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: security
> Reporter: Kan Zhang
> Assignee: Jitendra Nath Pandey
> Attachments: HDFS-1364-y20.1.patch, HDFS-1364-y20.2.patch
>
>
> If a user starts a long-running HFTP client using a keytab, we should do
> relogin automatically whenever TGT expires. Currently, HFTP client uses TGT
> to fetch a delegation token and cache that delegation token for HFTP
> operations. The delegation token is automatically renewed/refetched using
> TGT. However, when TGT expires, delegation token renewal/refetch will fail
> and no further HFTP operation is possible. This is unsatisfactory since the
> user has given us her keytab. We should be able to relogin from keytab and
> continue.
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