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https://issues.apache.org/jira/browse/FLUME-2557?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14220066#comment-14220066
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Ryan Blue commented on FLUME-2557:
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This doesn't test the case where the current user does have a TGT but wants to
log in as a different user. I believe that's the case when another thread has
already logged in and has a TGT. So we should exercise the
{{finalPrincipal.equals(currentUser.getUserName()}} check in both the case
where the final principal is already logged in and has a TGT and the case where
we're trying to log in as a different user. Other than that, this looks good to
me.
> DatasetSink doesn't work with Kerberos
> --------------------------------------
>
> Key: FLUME-2557
> URL: https://issues.apache.org/jira/browse/FLUME-2557
> Project: Flume
> Issue Type: Bug
> Components: Sinks+Sources
> Affects Versions: v1.5.2
> Reporter: Joey Echeverria
> Assignee: Joey Echeverria
> Fix For: v1.6.0
>
> Attachments: FLUME-2557.patch
>
>
> When configuring Kerberos, you'll get an error such as:
> Sink kite-dataset has been removed due to an error during configuration
> org.apache.flume.sink.kite.KerberosUtil$SecurityException: Cannot use
> multiple Kerberos principals:
> flume/[email protected] would replace flume
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