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https://issues.apache.org/jira/browse/IMPALA-9021?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16950703#comment-16950703
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Quanlong Huang commented on IMPALA-9021:
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'::ffff:127.0.0.1' is an IPv6 address, not a hostname. We actually use the IPv6
address in TNetworkAddress.hostname. See the attached session page:
!sessions.png|width=1144,height=384!
Does Ranger only accept IPv4 format IP addresses so we need this fix?
> Impala produces a wrong value for the Ranger audit field of client IP
> ---------------------------------------------------------------------
>
> Key: IMPALA-9021
> URL: https://issues.apache.org/jira/browse/IMPALA-9021
> Project: IMPALA
> Issue Type: Bug
> Reporter: Fang-Yu Rao
> Assignee: Fang-Yu Rao
> Priority: Critical
> Attachments: sessions.png
>
>
> Currently on a Ranger-enabled Impala minicluster, Impala would produce a
> wrong value for the Ranger audit field of client IP after executing a SQL
> statement that triggers the check of authorization.
> Specifically, if a user issues a SQL statement '{{SHOW TABLE STATS
> functional.alltypes;}}', the value of the 3rd argument {{clientIp}} to the
> constructor of {{RangerBufferAuditHandler}}
> (https://github.com/apache/impala/blob/master/fe/src/main/java/org/apache/impala/authorization/ranger/RangerAuthorizationChecker.java#L224)
> would be '{{::ffff:127.0.0.1}}' instead of '{{127.0.0.1}}'. This could be
> verified by attaching a Java debugger to {{impalad}} and observing the value
> of the 3rd argument {{clientIp}}.
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