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From "Billie Rinaldi (JIRA)" <j...@apache.org>
Subject [jira] [Created] (YARN-7731) RegistryDNS should handle upstream DNS returning CNAME
Date Wed, 10 Jan 2018 22:50:00 GMT
Billie Rinaldi created YARN-7731:
------------------------------------

             Summary: RegistryDNS should handle upstream DNS returning CNAME
                 Key: YARN-7731
                 URL: https://issues.apache.org/jira/browse/YARN-7731
             Project: Hadoop YARN
          Issue Type: Bug
            Reporter: Billie Rinaldi
            Assignee: Eric Yang


When RegistryDNS performs a lookup in an upstream DNS server and a CNAME record is retrieved,
it returns a response with only the CNAME record (there is no A record, meaning no IP address
is resolved). RegistryDNS should perform a lookup on the new name from the CNAME record in
an attempt to find an A record, which would provide an IP address.



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