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https://issues.apache.org/jira/browse/HDFS-2264?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13526703#comment-13526703
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Aaron T. Myers commented on HDFS-2264:
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The test failure was unrelated and was fixed by HDFS-4282. No tests are
included in this patch since Kerberos is required to test this stuff out.
Daryn, how does this patch look now?
> NamenodeProtocol has the wrong value for clientPrincipal in KerberosInfo
> annotation
> -----------------------------------------------------------------------------------
>
> Key: HDFS-2264
> URL: https://issues.apache.org/jira/browse/HDFS-2264
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: namenode
> Affects Versions: 2.0.2-alpha
> Reporter: Aaron T. Myers
> Assignee: Aaron T. Myers
> Attachments: HDFS-2264.patch, HDFS-2264.patch, HDFS-2264.r1.diff
>
>
> The {{@KerberosInfo}} annotation specifies the expected server and client
> principals for a given protocol in order to look up the correct principal
> name from the config. The {{NamenodeProtocol}} has the wrong value for the
> client config key. This wasn't noticed because most setups actually use the
> same *value* for for both the NN and 2NN principals ({{hdfs/_HOST@REALM}}),
> in which the {{_HOST}} part gets replaced at run-time. This bug therefore
> only manifests itself on secure setups which explicitly specify the NN and
> 2NN principals.
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