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Posted to common-issues@hadoop.apache.org by "Kihwal Lee (JIRA)" <ji...@apache.org> on 2013/08/09 17:45:55 UTC

[jira] [Updated] (HADOOP-9789) Support server advertised kerberos principals

     [ https://issues.apache.org/jira/browse/HADOOP-9789?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Kihwal Lee updated HADOOP-9789:
-------------------------------

    Target Version/s: 3.0.0, 2.1.1-beta  (was: 3.0.0, 2.3.0)
    
> Support server advertised kerberos principals
> ---------------------------------------------
>
>                 Key: HADOOP-9789
>                 URL: https://issues.apache.org/jira/browse/HADOOP-9789
>             Project: Hadoop Common
>          Issue Type: New Feature
>          Components: ipc, security
>    Affects Versions: 2.0.0-alpha, 3.0.0
>            Reporter: Daryn Sharp
>            Assignee: Daryn Sharp
>            Priority: Critical
>         Attachments: HADOOP-9789.patch, HADOOP-9789.patch
>
>
> The RPC client currently constructs the kerberos principal based on the a config value, usually with an _HOST substitution.  This means the service principal must match the hostname the client is using to connect.  This causes problems:
> * Prevents using HA with IP failover when the servers have distinct principals from the failover hostname
> * Prevents clients from being able to access a service bound to multiple interfaces.  Only the interface that matches the server's principal may be used.
> The client should be able to use the SASL advertised principal (HADOOP-9698), with appropriate safeguards, to acquire the correct service ticket.

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