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https://issues.apache.org/jira/browse/HDFS-6354?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14009656#comment-14009656
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Daryn Sharp commented on HDFS-6354:
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The multiple principal spnego support feature should indirectly uncover a
misconfiguration since it has to read the keytab (which may throw) and then
throws if no HTTP principals are found. Perhaps we need to extend the auth
handler to verify an explicit principal is in the keytab too.
> NN startup does not fail when it fails to login with the spnego principal
> -------------------------------------------------------------------------
>
> Key: HDFS-6354
> URL: https://issues.apache.org/jira/browse/HDFS-6354
> Project: Hadoop HDFS
> Issue Type: Bug
> Affects Versions: 2.2.0
> Reporter: Arpit Gupta
>
> I have noticed where the NN startup did not report any issues the login fails
> because either the keytab is wrong or the principal does not exist etc. This
> can be mis leading and lead to authentication failures when a client tries to
> authenticate to the spnego principal.
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