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https://issues.apache.org/jira/browse/HADOOP-15440?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16898548#comment-16898548
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He Xiaoqiao commented on HADOOP-15440:
--------------------------------------
Thanks [~jojochuang] for getting this issue back, [^HADOOP-15440.002.patch]
try to fix checkstyle and pending Jenkins.
{quote}please make some examples in the summary so this is easier to
understand.{quote}
When setup HttpFS server or KMS server in security mode, we should config the
item `httpfs.authentication.kerberos.principal` for httpfs principal. Since it
doesn't support to convert Kerberos principal name pattern to valid Kerberos
principal names, so we have to config the principal value with the real
hostname rather than the hostname patter `_HOST` as the following shows, thus
we have to prepare different configs for different HttpFS instance or KMS
instance.
{code:java}
<property>
<name>httpfs.authentication.kerberos.principal</name>
<value>HTTP/`hostname`@REALM</value>
</property>
{code}
cc [~jojochuang],[~eyang], [~stev...@iseran.com] Please take a reviews if you
have times. Thanks again.
> Support kerberos principal name pattern for KerberosAuthenticationHandler
> -------------------------------------------------------------------------
>
> Key: HADOOP-15440
> URL: https://issues.apache.org/jira/browse/HADOOP-15440
> Project: Hadoop Common
> Issue Type: Improvement
> Components: security
> Reporter: He Xiaoqiao
> Assignee: He Xiaoqiao
> Priority: Major
> Attachments: HADOOP-15440-trunk.001.patch, HADOOP-15440.002.patch
>
>
> When setup HttpFS server or KMS server in security mode, we have to config
> kerberos principal for these service, it doesn't support to convert Kerberos
> principal name pattern to valid Kerberos principal names whereas
> NameNode/DataNode and many other service can do that, so it makes confused
> for users. so I propose to replace hostname pattern with hostname, which
> should be fully-qualified domain name.
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