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https://issues.apache.org/jira/browse/HADOOP-8830?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13779424#comment-13779424
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Omkar Vinit Joshi commented on HADOOP-8830:
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Even I saw the similar problem to HttpServer adding NoCacheFilter and
AuthenticationFilter twice...any resolution for this?
> org.apache.hadoop.security.authentication.server.AuthenticationFilter might
> be called twice, causing kerberos replay errors
> ---------------------------------------------------------------------------------------------------------------------------
>
> Key: HADOOP-8830
> URL: https://issues.apache.org/jira/browse/HADOOP-8830
> Project: Hadoop Common
> Issue Type: Bug
> Affects Versions: 2.0.1-alpha
> Reporter: Moritz Moeller
>
> AuthenticationFilter.doFilter is called twice (not sure if that is
> intentional or not).
> The second time it is called the ServletRequest is already authenticated,
> i.e. httpRequest.getRemoteUser() returns non-null info.
> If the kerberos authentication is triggered a second time it'll return a
> replay attack exception.
> I solved this by adding a if (httpRequest.getRemoteUser() == null) at the
> very beginning of doFilter.
> Alternatively one can set an attribute on the request, or figure out why
> doFilter is called twice.
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