diff --git a/hadoop-mapreduce-project/CHANGES.txt b/hadoop-mapreduce-project/CHANGES.txt
index b0d707d038f..74a38756cc5 100644
--- a/hadoop-mapreduce-project/CHANGES.txt
+++ b/hadoop-mapreduce-project/CHANGES.txt
@@ -179,6 +179,9 @@ Release 2.4.0 - UNRELEASED
     MAPREDUCE-5754. Preserve Job diagnostics in history (Gera Shegalov via
     jlowe)
 
+    MAPREDUCE-5766. Moved ping messages from TaskAttempts to be at DEBUG level
+    inside the ApplicationMaster log. (Jian He via vinodkv)
+
   OPTIMIZATIONS
 
   BUG FIXES
diff --git a/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/main/java/org/apache/hadoop/mapred/TaskAttemptListenerImpl.java b/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/main/java/org/apache/hadoop/mapred/TaskAttemptListenerImpl.java
index 03b6e52db8e..074e3f0fbb8 100644
--- a/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/main/java/org/apache/hadoop/mapred/TaskAttemptListenerImpl.java
+++ b/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/main/java/org/apache/hadoop/mapred/TaskAttemptListenerImpl.java
@@ -360,12 +360,13 @@ public class TaskAttemptListenerImpl extends CompositeService
 
     if (taskStatus == null) {
       //We are using statusUpdate only as a simple ping
-      LOG.info("Ping from " + taskAttemptID.toString());
+      if (LOG.isDebugEnabled()) {
+        LOG.debug("Ping from " + taskAttemptID.toString());
+      }
       return feedback;
     }
 
     // if we are here there is an actual status update to be processed
-    LOG.info("Status update from " + taskAttemptID.toString());
 
     taskHeartbeatHandler.progressing(yarnAttemptID);
     TaskAttemptStatus taskAttemptStatus =
@@ -453,7 +454,7 @@ public class TaskAttemptListenerImpl extends CompositeService
 
     JVMId jvmId = context.jvmId;
     LOG.info("JVM with ID : " + jvmId + " asked for a task");
-    
+
     JvmTask jvmTask = null;
     // TODO: Is it an authorized container to get a task? Otherwise return null.