[jira] [Resolved] (HADOOP-8554) KerberosAuthenticator should use the configured principal

["Eli Collins (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HADOOP-8554?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Eli Collins resolved HADOOP-8554.
---------------------------------

    Resolution: Invalid

You're right, thanks for the explanation, I didn't realize the principal config was server-side only. Also, the reason I hit this with webhdfs and not hftp is that hftp doesn't support SPNEGO.
                
> KerberosAuthenticator should use the configured principal
> ---------------------------------------------------------
>
>                 Key: HADOOP-8554
>                 URL: https://issues.apache.org/jira/browse/HADOOP-8554
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: security
>    Affects Versions: 1.0.0, 2.0.0-alpha, 2.0.1-alpha, 3.0.0
>            Reporter: Eli Collins
>              Labels: security, webconsole
>
> In KerberosAuthenticator we construct the principal as follows:
> {code}
> String servicePrincipal = "HTTP/" + KerberosAuthenticator.this.url.getHost();
> {code}
> Seems like we should use the configured hadoop.http.authentication.kerberos.principal instead right?
> I hit this issue as a distcp using webhdfs://localhost fails because HTTP/localhost is not in the kerb DB but using webhdfs://eli-thinkpad works because HTTP/eli-thinkpad is (and is my configured principal). distcp using Hftp://localhost with the same config works so it looks like this check is webhdfs specific for some reason (webhdfs is using spnego and hftp is not?).

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