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https://issues.apache.org/jira/browse/HADOOP-14708?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16119477#comment-16119477
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Wei-Chiu Chuang edited comment on HADOOP-14708 at 8/9/17 6:33 AM:
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[~cltlfcjin]
bq. But KERBEROS_SSL is also kerberos, right?
Based on jira HDFS-3745 (unresolved), KERBEROS_SSL was meant to be SPNEGO. 
Probably some leftover relic.


was (Author: jojochuang):
[~cltlfcjin]
bq. But KERBEROS_SSL is also kerberos, right?
Based on jira HDFS-3745 (unresolved), KERBEROS_SSL is meant to be SPNEGO.

> FsckServlet can not create SaslRpcClient with auth KERBEROS_SSL
> ---------------------------------------------------------------
>
>                 Key: HADOOP-14708
>                 URL: https://issues.apache.org/jira/browse/HADOOP-14708
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: security
>    Affects Versions: 2.7.3, 2.8.1, 3.0.0-alpha3
>            Reporter: Lantao Jin
>            Assignee: Lantao Jin
>         Attachments: FSCK-2.log, FSCK.log, HADOOP-14708.001.patch
>
>
> FSCK started by xx (auth:KERBEROS_SSL) failed with exception msg "fsck 
> encountered internal errors!"
> FSCK use FSCKServlet to submit RPC to NameNode, it use {{KERBEROS_SSL}} as 
> its {{AuthenticationMethod}} in {{JspHelper.java}}
> {code}
>   /** Same as getUGI(context, request, conf, KERBEROS_SSL, true). */
>   public static UserGroupInformation getUGI(ServletContext context,
>       HttpServletRequest request, Configuration conf) throws IOException {
>     return getUGI(context, request, conf, AuthenticationMethod.KERBEROS_SSL, 
> true);
>   }
> {code}
> But when setup SaslConnection with server, KERBEROS_SSL will failed to create 
> SaslClient instance. See {{SaslRpcClient.java}}
> {code}
> private SaslClient createSaslClient(SaslAuth authType)
>       throws SaslException, IOException {
>       ....
>       case KERBEROS: {
>         if (ugi.getRealAuthenticationMethod().getAuthMethod() !=
>             AuthMethod.KERBEROS) {
>           return null; // client isn't using kerberos
>         }
> {code}



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