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https://issues.apache.org/jira/browse/ZOOKEEPER-2344?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15135488#comment-15135488
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Raul Gutierrez Segales commented on ZOOKEEPER-2344:
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[~cnauroth], [~steve_l]: lets target this for 3.4.9 - thanks!
> Provide more diagnostics/stack traces on SASL Auth failure
> ----------------------------------------------------------
>
> Key: ZOOKEEPER-2344
> URL: https://issues.apache.org/jira/browse/ZOOKEEPER-2344
> Project: ZooKeeper
> Issue Type: Improvement
> Components: java client, server
> Affects Versions: 3.4.7, 3.5.1
> Reporter: Steve Loughran
> Fix For: 3.4.9, 3.5.2, 3.6.0
>
>
> When Kerberos decides it doesn't want to work, the JRE libraries provide some
> terse and unhelpful error messages.
> The only way to debug the problem is (a) to have complete stack traces and
> (b) as much related information as possible.
> Zookeeper could do more here. Currently too much of the code loses stack
> traces; sometimes auth errors aren't reported back to the client (the
> connection is closed) +others
> Everyone who has tried to diagnose kerberos problems will appreciate
> improvements here
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