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From "Matteo Bertozzi (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-4791) Allow Secure Zookeeper JAAS configuration to be programmatically set (rather than only by reading JAAS configuration file)
Date Tue, 18 Dec 2012 00:32:15 GMT

    [ https://issues.apache.org/jira/browse/HBASE-4791?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13534459#comment-13534459
] 

Matteo Bertozzi commented on HBASE-4791:
----------------------------------------

hostname null resolves to getLocalHost() inside SecurityUtil.getServerPrincipal().

{code}
   * The hostname can differ from the hostname in {@link #isa}
   * but usually doesn't if both servers resolve .
   */
  private ServerName serverNameFromMasterPOV;
{code}
yes, the isa.getHostName() can be a different name from serverNameFromMasterPOV name, and
maybe is not even the one that we expect as login... but this is just a default value, if
the user doesn't specify anything....
so, since this property is just the mirror of the jaas.conf file I expect to have the same
user@host of the jaas.conf

                
> Allow Secure Zookeeper JAAS configuration to be programmatically set (rather than only
by reading JAAS configuration file)
> --------------------------------------------------------------------------------------------------------------------------
>
>                 Key: HBASE-4791
>                 URL: https://issues.apache.org/jira/browse/HBASE-4791
>             Project: HBase
>          Issue Type: Improvement
>          Components: security, Zookeeper
>            Reporter: Eugene Koontz
>            Assignee: Matteo Bertozzi
>              Labels: security, zookeeper
>         Attachments: DemoConfig.java, HBASE-4791-v1.patch, HBASE-4791-v2.patch, HBASE-4791-v3.patch,
HBASE-4791-v4-0.94.patch, HBASE-4791-v4.patch, HBASE-4791-v4.patch
>
>
> In the currently proposed fix for HBASE-2418, there must be a JAAS file specified in
    System.setProperty("java.security.auth.login.config"). 
> However, it might be preferable to construct a JAAS configuration programmatically, as
is done with secure Hadoop (see https://github.com/apache/hadoop-common/blob/a48eceb62c9b5c1a5d71ee2945d9eea2ed62527b/src/java/org/apache/hadoop/security/UserGroupInformation.java#L175).
> This would have the benefit of avoiding a usage of a system property setting, and allow
instead an HBase-local configuration setting.	

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