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https://issues.apache.org/jira/browse/HDFS-6354?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14006461#comment-14006461
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Jing Zhao commented on HDFS-6354:
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The login using spnego principal and keytab happens in
KerberosAuthenticationHandler#init, thus the login failure may be hidden in the
http server. If we want to make NN startup to fail, does that mean we need to
do some fake login in NameNode? [~daryn], could you provide some input here?
> 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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