HADOOP-7721. Add a log before login in KerberosAuthenticationHandler.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1179869 13f79535-47bb-0310-9956-ffa450edef68

hadoop-common-project/hadoop-auth/src/main/java/org/apache/hadoop/security/authentication/server/KerberosAuthenticationHandler.java

@@ -160,6 +160,7 @@ public class KerberosAuthenticationHandler implements AuthenticationHandler {
 
       KerberosConfiguration kerberosConfiguration = new KerberosConfiguration(keytab, principal);
 
+      LOG.info("Login using keytab "+keytab+", for principal "+principal);
       loginContext = new LoginContext("", subject, null, kerberosConfiguration);
       loginContext.login();
 

hadoop-common-project/hadoop-common/CHANGES.txt

@@ -57,6 +57,8 @@ Trunk (unreleased changes)
     HADOOP-7695. RPC.stopProxy can throw unintended exception while logging
                  error (atm)
 
+    HADOOP-7721. Add log before login in KerberosAuthenticationHandler. (jitendra)
+
 Release 0.23.0 - Unreleased
 
   INCOMPATIBLE CHANGES