Repository: hadoop
Updated Branches:
  refs/heads/trunk e54a3e1f4 -> 0ebe84d30


HADOOP-11868. Invalid user logins trigger large backtraces in server log. 
Contributed by Chang Li


Project: http://git-wip-us.apache.org/repos/asf/hadoop/repo
Commit: http://git-wip-us.apache.org/repos/asf/hadoop/commit/0ebe84d3
Tree: http://git-wip-us.apache.org/repos/asf/hadoop/tree/0ebe84d3
Diff: http://git-wip-us.apache.org/repos/asf/hadoop/diff/0ebe84d3

Branch: refs/heads/trunk
Commit: 0ebe84d30af2046775884c9fb1e054da31582657
Parents: e54a3e1
Author: Jason Lowe <[email protected]>
Authored: Wed Apr 22 20:56:29 2015 +0000
Committer: Jason Lowe <[email protected]>
Committed: Wed Apr 22 20:56:29 2015 +0000

----------------------------------------------------------------------
 .../security/authentication/server/AuthenticationFilter.java   | 6 +++++-
 hadoop-common-project/hadoop-common/CHANGES.txt                | 3 +++
 2 files changed, 8 insertions(+), 1 deletion(-)
----------------------------------------------------------------------


http://git-wip-us.apache.org/repos/asf/hadoop/blob/0ebe84d3/hadoop-common-project/hadoop-auth/src/main/java/org/apache/hadoop/security/authentication/server/AuthenticationFilter.java
----------------------------------------------------------------------
diff --git 
a/hadoop-common-project/hadoop-auth/src/main/java/org/apache/hadoop/security/authentication/server/AuthenticationFilter.java
 
b/hadoop-common-project/hadoop-auth/src/main/java/org/apache/hadoop/security/authentication/server/AuthenticationFilter.java
index 203ee41..9cfa3c2 100644
--- 
a/hadoop-common-project/hadoop-auth/src/main/java/org/apache/hadoop/security/authentication/server/AuthenticationFilter.java
+++ 
b/hadoop-common-project/hadoop-auth/src/main/java/org/apache/hadoop/security/authentication/server/AuthenticationFilter.java
@@ -560,7 +560,11 @@ public class AuthenticationFilter implements Filter {
       // exception from the filter itself is fatal
       errCode = HttpServletResponse.SC_FORBIDDEN;
       authenticationEx = ex;
-      LOG.warn("Authentication exception: " + ex.getMessage(), ex);
+      if (LOG.isDebugEnabled()) {
+        LOG.debug("Authentication exception: " + ex.getMessage(), ex);
+      } else {
+        LOG.warn("Authentication exception: " + ex.getMessage());
+      }
     }
     if (unauthorizedResponse) {
       if (!httpResponse.isCommitted()) {

http://git-wip-us.apache.org/repos/asf/hadoop/blob/0ebe84d3/hadoop-common-project/hadoop-common/CHANGES.txt
----------------------------------------------------------------------
diff --git a/hadoop-common-project/hadoop-common/CHANGES.txt 
b/hadoop-common-project/hadoop-common/CHANGES.txt
index 3c636ec..1410ce4 100644
--- a/hadoop-common-project/hadoop-common/CHANGES.txt
+++ b/hadoop-common-project/hadoop-common/CHANGES.txt
@@ -554,6 +554,9 @@ Release 2.7.1 - UNRELEASED
 
   BUG FIXES
 
+    HADOOP-11868. Invalid user logins trigger large backtraces in server log
+    (Chang Li via jlowe)
+
 Release 2.7.0 - 2015-04-20
 
   INCOMPATIBLE CHANGES

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