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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-16214) Kerberos name implementation in Hadoop does not accept principals with more than two components
Date Wed, 10 Apr 2019 17:52:00 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-16214?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16814715#comment-16814715
] 

Hadoop QA commented on HADOOP-16214:
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| (x) *{color:red}-1 overall{color}* |
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|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | {color:blue} reexec {color} | {color:blue}  0m  0s{color} | {color:blue}
Docker mode activated. {color} |
| {color:red}-1{color} | {color:red} patch {color} | {color:red}  0m  6s{color} | {color:red}
HADOOP-16214 does not apply to trunk. Rebase required? Wrong Branch? See https://wiki.apache.org/hadoop/HowToContribute
for help. {color} |
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|| Subsystem || Report/Notes ||
| JIRA Issue | HADOOP-16214 |
| JIRA Patch URL | https://issues.apache.org/jira/secure/attachment/12965488/HADOOP-16214.009.patch
|
| Console output | https://builds.apache.org/job/PreCommit-HADOOP-Build/16141/console |
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This message was automatically generated.



> 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
>
>
> 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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