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d1e83f8280
Prior to this work, the impalad could either authenticate with Kerberos, or authenticate with LDAP. This fixes that so that both can co-exist in the same daemon. Prior code had both a KerberosAuthProvider and an LdapAuthProvider; this is refactored into a single SaslAuthProvider that potentially contains both LDAP and Kerberos. The terminology of "client facing" and "server facing" has been replaced with "external" and "internal". External is for clients like the impala shell, odbc, jdbc, etc. Internal is for daemon <-> daemon communication. The notion of the "auxprop" plugin is removed, as that was dead code. The Thrift code is enhanced to pass the Realm information from the SaslAuthProvider down to the underlying SASL library. Change-Id: I0a0b968a107c0b25610ca37295c3fee345ecdd6d Reviewed-on: http://gerrit.sjc.cloudera.com:8080/4051 Reviewed-by: Michael Yoder <myoder@cloudera.com> Tested-by: jenkins