diff --git a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-router/src/main/java/org/apache/hadoop/yarn/server/router/webapp/RouterWebServiceUtil.java b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-router/src/main/java/org/apache/hadoop/yarn/server/router/webapp/RouterWebServiceUtil.java
index e769a86bba..5528e784a0 100644
--- a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-router/src/main/java/org/apache/hadoop/yarn/server/router/webapp/RouterWebServiceUtil.java
+++ b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-router/src/main/java/org/apache/hadoop/yarn/server/router/webapp/RouterWebServiceUtil.java
@@ -33,8 +33,6 @@
 import javax.ws.rs.core.Response;
 import javax.ws.rs.core.Response.ResponseBuilder;
 
-import org.apache.commons.logging.Log;
-import org.apache.commons.logging.LogFactory;
 import org.apache.hadoop.security.UserGroupInformation;
 import org.apache.hadoop.yarn.api.records.YarnApplicationState;
 import org.apache.hadoop.yarn.server.resourcemanager.webapp.RMWebAppUtil;
@@ -54,6 +52,8 @@
 import com.sun.jersey.api.client.WebResource;
 import com.sun.jersey.api.client.WebResource.Builder;
 import com.sun.jersey.core.util.MultivaluedMapImpl;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
 /**
  * The Router webservice util class.
@@ -62,8 +62,8 @@ public final class RouterWebServiceUtil {
 
   private static String user = "YarnRouter";
 
-  private static final Log LOG =
-      LogFactory.getLog(RouterWebServiceUtil.class.getName());
+  private static final Logger LOG =
+      LoggerFactory.getLogger(RouterWebServiceUtil.class.getName());
 
   private final static String PARTIAL_REPORT = "Partial Report ";
 
diff --git a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-tests/src/test/java/org/apache/hadoop/yarn/server/ContainerTokenIdentifierForTest.java b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-tests/src/test/java/org/apache/hadoop/yarn/server/ContainerTokenIdentifierForTest.java
index 99b3be5850..0d4d2e29b1 100644
--- a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-tests/src/test/java/org/apache/hadoop/yarn/server/ContainerTokenIdentifierForTest.java
+++ b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-tests/src/test/java/org/apache/hadoop/yarn/server/ContainerTokenIdentifierForTest.java
@@ -23,8 +23,6 @@
 import java.io.IOException;
 
 import org.apache.commons.io.IOUtils;
-import org.apache.commons.logging.Log;
-import org.apache.commons.logging.LogFactory;
 import org.apache.hadoop.io.Text;
 import org.apache.hadoop.yarn.api.records.ContainerId;
 import org.apache.hadoop.yarn.api.records.LogAggregationContext;
@@ -40,10 +38,12 @@
 import org.apache.hadoop.yarn.proto.YarnSecurityTestTokenProtos.ContainerTokenIdentifierForTestProto;
 
 import com.google.protobuf.TextFormat;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
 public class ContainerTokenIdentifierForTest extends ContainerTokenIdentifier {
 
-  private static Log LOG = LogFactory.getLog(ContainerTokenIdentifier.class);
+  private static Logger LOG = LoggerFactory.getLogger(ContainerTokenIdentifier.class);
 
   public static final Text KIND = new Text("ContainerToken");
   
diff --git a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-tests/src/test/java/org/apache/hadoop/yarn/server/MiniYARNCluster.java b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-tests/src/test/java/org/apache/hadoop/yarn/server/MiniYARNCluster.java
index 27aa916bd3..7a225c8274 100644
--- a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-tests/src/test/java/org/apache/hadoop/yarn/server/MiniYARNCluster.java
+++ b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-tests/src/test/java/org/apache/hadoop/yarn/server/MiniYARNCluster.java
@@ -28,8 +28,6 @@
 import java.util.concurrent.ConcurrentHashMap;
 import java.util.concurrent.ConcurrentMap;
 
-import org.apache.commons.logging.Log;
-import org.apache.commons.logging.LogFactory;
 import org.apache.hadoop.classification.InterfaceAudience;
 import org.apache.hadoop.classification.InterfaceStability;
 import org.apache.hadoop.conf.Configuration;
@@ -100,6 +98,8 @@
 import org.apache.hadoop.yarn.webapp.util.WebAppUtils;
 
 import com.google.common.annotations.VisibleForTesting;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
 import static org.apache.hadoop.yarn.server.resourcemanager.resource.TestResourceProfiles.TEST_CONF_RESET_RESOURCE_TYPES;
 
@@ -126,7 +126,8 @@
 @InterfaceStability.Evolving
 public class MiniYARNCluster extends CompositeService {
 
-  private static final Log LOG = LogFactory.getLog(MiniYARNCluster.class);
+  private static final Logger LOG =
+      LoggerFactory.getLogger(MiniYARNCluster.class);
 
   // temp fix until metrics system can auto-detect itself running in unit test:
   static {
diff --git a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-tests/src/test/java/org/apache/hadoop/yarn/server/NMTokenIdentifierNewForTest.java b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-tests/src/test/java/org/apache/hadoop/yarn/server/NMTokenIdentifierNewForTest.java
index 8153b44b63..7d21b484b4 100644
--- a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-tests/src/test/java/org/apache/hadoop/yarn/server/NMTokenIdentifierNewForTest.java
+++ b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-tests/src/test/java/org/apache/hadoop/yarn/server/NMTokenIdentifierNewForTest.java
@@ -23,8 +23,6 @@
 import java.io.IOException;
 
 import org.apache.commons.io.IOUtils;
-import org.apache.commons.logging.Log;
-import org.apache.commons.logging.LogFactory;
 import org.apache.hadoop.io.Text;
 import org.apache.hadoop.security.UserGroupInformation;
 import org.apache.hadoop.security.token.TokenIdentifier;
@@ -36,10 +34,12 @@
 import org.apache.hadoop.yarn.security.NMTokenIdentifier;
 
 import com.google.protobuf.TextFormat;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
 public class NMTokenIdentifierNewForTest extends NMTokenIdentifier {
 
-  private static Log LOG = LogFactory.getLog(NMTokenIdentifierNewForTest.class);
+  private static Logger LOG = LoggerFactory.getLogger(NMTokenIdentifierNewForTest.class);
 
   public static final Text KIND = new Text("NMToken");
   
diff --git a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-tests/src/test/java/org/apache/hadoop/yarn/server/TestContainerManagerSecurity.java b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-tests/src/test/java/org/apache/hadoop/yarn/server/TestContainerManagerSecurity.java
index 3ba4bebc86..1cbad70780 100644
--- a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-tests/src/test/java/org/apache/hadoop/yarn/server/TestContainerManagerSecurity.java
+++ b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-tests/src/test/java/org/apache/hadoop/yarn/server/TestContainerManagerSecurity.java
@@ -29,8 +29,6 @@
 import java.util.LinkedList;
 import java.util.List;
 
-import org.apache.commons.logging.Log;
-import org.apache.commons.logging.LogFactory;
 import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.fs.CommonConfigurationKeysPublic;
 import org.apache.hadoop.io.DataInputBuffer;
@@ -83,12 +81,14 @@
 import org.junit.runner.RunWith;
 import org.junit.runners.Parameterized;
 import org.junit.runners.Parameterized.Parameters;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
 
 @RunWith(Parameterized.class)
 public class TestContainerManagerSecurity extends KerberosSecurityTestcase {
 
-  static Log LOG = LogFactory.getLog(TestContainerManagerSecurity.class);
+  static Logger LOG = LoggerFactory.getLogger(TestContainerManagerSecurity.class);
   static final RecordFactory recordFactory = RecordFactoryProvider
       .getRecordFactory(null);
   private static MiniYARNCluster yarnCluster;
diff --git a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-tests/src/test/java/org/apache/hadoop/yarn/server/TestDiskFailures.java b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-tests/src/test/java/org/apache/hadoop/yarn/server/TestDiskFailures.java
index bf82ec54a3..e9de20a94b 100644
--- a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-tests/src/test/java/org/apache/hadoop/yarn/server/TestDiskFailures.java
+++ b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-tests/src/test/java/org/apache/hadoop/yarn/server/TestDiskFailures.java
@@ -18,8 +18,6 @@
 
 package org.apache.hadoop.yarn.server;
 
-import org.apache.commons.logging.Log;
-import org.apache.commons.logging.LogFactory;
 import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.fs.FileContext;
 import org.apache.hadoop.fs.FileUtil;
@@ -45,6 +43,8 @@
 import org.junit.Test;
 
 import org.junit.Assert;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
 /**
  * Verify if NodeManager's in-memory good local dirs list and good log dirs list
@@ -54,7 +54,7 @@
  */
 public class TestDiskFailures {
 
-  private static final Log LOG = LogFactory.getLog(TestDiskFailures.class);
+  private static final Logger LOG = LoggerFactory.getLogger(TestDiskFailures.class);
 
   private static final long DISK_HEALTH_CHECK_INTERVAL = 1000;//1 sec
 
diff --git a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-web-proxy/src/main/java/org/apache/hadoop/yarn/server/webproxy/AppReportFetcher.java b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-web-proxy/src/main/java/org/apache/hadoop/yarn/server/webproxy/AppReportFetcher.java
index 11ec2e46ff..6b79e194b4 100644
--- a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-web-proxy/src/main/java/org/apache/hadoop/yarn/server/webproxy/AppReportFetcher.java
+++ b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-web-proxy/src/main/java/org/apache/hadoop/yarn/server/webproxy/AppReportFetcher.java
@@ -19,8 +19,6 @@
 package org.apache.hadoop.yarn.server.webproxy;
 
 import java.io.IOException;
-import org.apache.commons.logging.Log;
-import org.apache.commons.logging.LogFactory;
 import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.ipc.RPC;
 import org.apache.hadoop.yarn.api.ApplicationClientProtocol;
@@ -42,7 +40,6 @@
  */
 public class AppReportFetcher {
   enum AppReportSource { RM, AHS }
-  private static final Log LOG = LogFactory.getLog(AppReportFetcher.class);
   private final Configuration conf;
   private final ApplicationClientProtocol applicationsManager;
   private final ApplicationHistoryProtocol historyManager;