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https://issues.apache.org/jira/browse/HADOOP-16214?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16819068#comment-16819068
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Daryn Sharp commented on HADOOP-16214:
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I already have blocked it. As stated before:
# +changing any negative test cases into positive cases is an immediate -1+
# extensive changes to the parser are neither necessary nor acceptable
It doesn't matter how you think it _should_ have worked. It _must_ continue to
work exactly as before.
Let's please stop squandering time. I've spent time I don't have to
demonstrate a trivial change that has no risk and remains consistent with long
standing semantics. If the patch doesn't apply to trunk, please tweak it. Put
yourself as the author of the patch. I don't care.
> Kerberos name implementation in Hadoop does not accept principals with more
> than two components
> -----------------------------------------------------------------------------------------------
>
> Key: HADOOP-16214
> URL: https://issues.apache.org/jira/browse/HADOOP-16214
> Project: Hadoop Common
> Issue Type: Bug
> Components: auth
> Reporter: Issac Buenrostro
> Priority: Major
> Attachments: HADOOP-16214.001.patch, HADOOP-16214.002.patch,
> HADOOP-16214.003.patch, HADOOP-16214.004.patch, HADOOP-16214.005.patch,
> HADOOP-16214.006.patch, HADOOP-16214.007.patch, HADOOP-16214.008.patch,
> HADOOP-16214.009.patch, HADOOP-16214.010.patch, HADOOP-16214.011.patch
>
>
> org.apache.hadoop.security.authentication.util.KerberosName is in charge of
> converting a Kerberos principal to a user name in Hadoop for all of the
> services requiring authentication.
> Although the Kerberos spec
> ([https://web.mit.edu/kerberos/krb5-1.5/krb5-1.5.4/doc/krb5-user/What-is-a-Kerberos-Principal_003f.html])
> allows for an arbitrary number of components in the principal, the Hadoop
> implementation will throw a "Malformed Kerberos name:" error if the principal
> has more than two components (because the regex can only read serviceName and
> hostName).
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