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https://issues.apache.org/jira/browse/KUDU-3415?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17734239#comment-17734239
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YUBI LEE commented on KUDU-3415:
--------------------------------
I think this issue is caused by ``connectToMasters()`` method.
([https://github.com/apache/kudu/blob/1.16.0/java/kudu-client/src/main/java/org/apache/kudu/client/ConnectToCluster.java#L175)]
In this method, kudu master hostnames are converted into ip. If desired
hostname is not resolved from ip, this issue occurs.
> Kerberos authentication fails with rdns disabled
> ------------------------------------------------
>
> Key: KUDU-3415
> URL: https://issues.apache.org/jira/browse/KUDU-3415
> Project: Kudu
> Issue Type: Bug
> Components: client
> Reporter: Abhishek Rawat
> Assignee: Marton Greber
> Priority: Major
>
> Kudu Java client doesn't retain the original hostname and replaces them with
> the resolved IPAddress in the kerberos principal. This results in error such
> as following:
> {code:java}
> error Message is Server not found in Kerberos database
> cTime is Sat Jul 28 22:29:26 UTC 2018 1532816966000
> sTime is Thu Oct 27 00:35:03 UTC 2022 1666830903000
> suSec is 129588
> error code is 7
> crealm is CDW-KUDU.XCU2-8Y8X.DEV.CLDR.WORK
> error Message is Server not found in Kerberos database
> crealm is CDW-KUDU.XCU2-8Y8X.DEV.CLDR.WORK
> cname is
> hive/impala-1666798978-f8x7....@cdw-kudu.xcu2-8y8x.dev.cldr.work
> sname is kudu/10.80.205....@cdw-kudu.xcu2-8y8x.dev.cldr.work
> msgType is 30
> cname is
> hive/impala-1666798978-f8x7....@cdw-kudu.xcu2-8y8x.dev.cldr.work
> sname is kudu/10.80.194....@cdw-kudu.xcu2-8y8x.dev.cldr.work
> msgType is 30
> KrbException: Server not found in Kerberos database (7) - LOOKING_UP_SERVER
> {code}
> [~aserbin] suggested this might require the fix done on cpp client side in
> KUDU-2032 to be extended to Java client also.
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