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https://issues.apache.org/jira/browse/HAWQ-845?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15451291#comment-15451291
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Lin Wen commented on HAWQ-845:
------------------------------

For now I think we can keep 'postgres' as default kerberos service name, but 
customers should be able to parameterize it with other name.
If user want to use a different name, below property/value should be added into 
hawq-site.xml 
<property>
<name>krb_srvname</name>
<value>gpadmin</value>
</property>



> Parameterize kerberos principal name for HAWQ
> ---------------------------------------------
>
>                 Key: HAWQ-845
>                 URL: https://issues.apache.org/jira/browse/HAWQ-845
>             Project: Apache HAWQ
>          Issue Type: Improvement
>            Reporter: bhuvnesh chaudhary
>            Assignee: Lei Chang
>            Priority: Minor
>             Fix For: backlog
>
>
> Currently HAWQ only accepts the principle 'postgres' for kerberos settings.
> This is because it is hardcoded in gpcheckhdfs, we should ensure that it can 
> be parameterized.
> Also, it's better to change the default principal name postgres to gpadmin. 
> It will avoid the need of changing the the hdfs directory during securing the 
> cluster to postgres and will avoid the need of maintaining postgres user. 



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