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From "Moritz Moeller (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HADOOP-8867) always use canonical host name for kerberos _HOST macro expansion
Date Sun, 30 Sep 2012 15:34:07 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-8867?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Moritz Moeller updated HADOOP-8867:

    Attachment: hadoop-common-kerberos-use-canonical-hostname.patch

this patch canonicalizes the host name as needed for kerberos.

> always use canonical host name for kerberos _HOST macro expansion
> -----------------------------------------------------------------
>                 Key: HADOOP-8867
>                 URL: https://issues.apache.org/jira/browse/HADOOP-8867
>             Project: Hadoop Common
>          Issue Type: Improvement
>          Components: security
>    Affects Versions: 2.0.1-alpha
>            Reporter: Moritz Moeller
>         Attachments: hadoop-common-kerberos-use-canonical-hostname.patch
> right now SecurityUtil.replacePattern is called with the verbatim configured hostname,
not with the canonicalized form.
> without this patch the hostnames in the configuration must be canonical, with this patch
one can use cname aliases (we use a cname alias for the namenode).

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