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From "Vijay Singh (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-13817) Allow DNS CNAME ALIAS Resolution from apache hive beeline JDBC URL to allow for failover
Date Sat, 02 Sep 2017 07:13:02 GMT

    [ https://issues.apache.org/jira/browse/HIVE-13817?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16151429#comment-16151429
] 

Vijay Singh commented on HIVE-13817:
------------------------------------

It appears that Hive-17218 has implemented the same logic for fixing this issue recently,
So good news is no patch may be required in this case for Canonical name resolution.

> Allow DNS CNAME ALIAS Resolution from apache hive beeline JDBC URL to allow for failover
> ----------------------------------------------------------------------------------------
>
>                 Key: HIVE-13817
>                 URL: https://issues.apache.org/jira/browse/HIVE-13817
>             Project: Hive
>          Issue Type: New Feature
>          Components: Beeline
>    Affects Versions: 1.2.1
>            Reporter: Vijay Singh
>         Attachments: HIVE-13817.1.patch, HIVE-13817.2.patch, HIVE-13817.3.patch
>
>   Original Estimate: 24h
>  Remaining Estimate: 24h
>
> Currently, in case of BDR clusters, DNS CNAME alias based connections fail. As _HOST
resolves to exact endpoint specified in connection string and that may not be intended SPN
for kerberos based on reverse DNS lookup. Consequently this JIRA proposes that client specific
setting be used to resolv _HOST from CNAME DNS alias to A record entry on the fly in beeline.



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