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From "Lantao Jin (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HADOOP-14708) FsckServlet can not create SaslRpcClient with auth KERBEROS_SSL
Date Tue, 01 Aug 2017 09:38:00 GMT
Lantao Jin created HADOOP-14708:
-----------------------------------

             Summary: 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: 3.0.0-alpha3, 2.8.1, 2.7.3
            Reporter: Lantao Jin


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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