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https://issues.apache.org/jira/browse/HADOOP-10895?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14267268#comment-14267268
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Yongjun Zhang commented on HADOOP-10895:
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HI [~rkanter],
About the test you helped with:
{quote}
The idea would be that Oozie uses KerberosAuthenticator even in a non-secure
cluster, relying on the fallback behavior. With the patch, that should now fail
because the fallback is disabled by default.
{quote}
What we observed is that Oozie uses KerberosAuthenticator in a non-secure
cluster and succeeds, so it DOESN"T seem to need the fallback.
However, there are other use cases that count on the fallback. As an example,
with the patch, I had to fix quite some tests that fail if not allowing
fallback. Right now the problem is that we don't have a real use case that
count on the fallback to test out the fix.
I wonder if it makes sense to commit the patch such that the cases that need
the fallback has to enable the fallback first?
Thanks.
> HTTP KerberosAuthenticator fallback should have a flag to disable it
> --------------------------------------------------------------------
>
> Key: HADOOP-10895
> URL: https://issues.apache.org/jira/browse/HADOOP-10895
> Project: Hadoop Common
> Issue Type: Bug
> Components: security
> Affects Versions: 2.4.1
> Reporter: Alejandro Abdelnur
> Assignee: Yongjun Zhang
> Priority: Blocker
> Attachments: HADOOP-10895.001.patch, HADOOP-10895.002.patch,
> HADOOP-10895.003.patch, HADOOP-10895.003v1.patch, HADOOP-10895.003v2.patch,
> HADOOP-10895.003v2improved.patch, HADOOP-10895.004.patch,
> HADOOP-10895.005.patch, HADOOP-10895.006.patch, HADOOP-10895.007.patch,
> HADOOP-10895.008.patch, HADOOP-10895.009.patch
>
>
> Per review feedback in HADOOP-10771, {{KerberosAuthenticator}} and the
> delegation token version coming in with HADOOP-10771 should have a flag to
> disable fallback to pseudo, similarly to the one that was introduced in
> Hadoop RPC client with HADOOP-9698.
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