diff --git a/LICENSE-binary b/LICENSE-binary
index 980b9c7f2b62a..9dca7a6f6bf85 100644
--- a/LICENSE-binary
+++ b/LICENSE-binary
@@ -210,6 +210,7 @@ hadoop-hdfs-project/hadoop-hdfs/src/main/webapps/static/nvd3-1.8.5.* (css and js
 hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/checker/AbstractFuture.java
 hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/checker/TimeoutFuture.java
 
+ch.qos.reload4j:reload4j:1.2.18.3
 com.aliyun:aliyun-java-sdk-core:3.4.0
 com.aliyun:aliyun-java-sdk-ecs:4.2.0
 com.aliyun:aliyun-java-sdk-ram:3.0.0
@@ -279,7 +280,6 @@ io.reactivex:rxjava-string:1.1.1
 io.reactivex:rxnetty:0.4.20
 io.swagger:swagger-annotations:1.5.4
 javax.inject:javax.inject:1
-log4j:log4j:1.2.17
 net.java.dev.jna:jna:5.2.0
 net.minidev:accessors-smart:1.2
 net.minidev:json-smart:2.4.7
@@ -472,9 +472,10 @@ org.jruby.jcodings:jcodings:1.0.13
 org.jruby.joni:joni:2.1.2
 org.slf4j:jul-to-slf4j:jar:1.7.25
 org.ojalgo:ojalgo:43.0:compile
-org.slf4j:jul-to-slf4j:1.7.25
-org.slf4j:slf4j-api:1.7.25
-org.slf4j:slf4j-log4j12:1.7.25
+org.slf4j:jcl-over-slf4j:1.7.35
+org.slf4j:jul-to-slf4j:1.7.35
+org.slf4j:slf4j-api:1.7.35
+org.slf4j:slf4j-reload4j:1.7.35
 
 
 CDDL 1.1 + GPLv2 with classpath exception
diff --git a/hadoop-assemblies/src/main/resources/assemblies/hadoop-dynamometer.xml b/hadoop-assemblies/src/main/resources/assemblies/hadoop-dynamometer.xml
index 448035262e12d..b2ce562231c5a 100644
--- a/hadoop-assemblies/src/main/resources/assemblies/hadoop-dynamometer.xml
+++ b/hadoop-assemblies/src/main/resources/assemblies/hadoop-dynamometer.xml
@@ -66,7 +66,7 @@
       <excludes>
         <!-- use slf4j from common to avoid multiple binding warnings -->
         <exclude>org.slf4j:slf4j-api</exclude>
-        <exclude>org.slf4j:slf4j-log4j12</exclude>
+        <exclude>org.slf4j:slf4j-reload4j</exclude>
       </excludes>
     </dependencySet>
   </dependencySets>
diff --git a/hadoop-assemblies/src/main/resources/assemblies/hadoop-hdfs-nfs-dist.xml b/hadoop-assemblies/src/main/resources/assemblies/hadoop-hdfs-nfs-dist.xml
index 0edfdeb7b0d52..af5d89d7efe48 100644
--- a/hadoop-assemblies/src/main/resources/assemblies/hadoop-hdfs-nfs-dist.xml
+++ b/hadoop-assemblies/src/main/resources/assemblies/hadoop-hdfs-nfs-dist.xml
@@ -40,7 +40,7 @@
         <exclude>org.apache.hadoop:hadoop-hdfs</exclude>
         <!-- use slf4j from common to avoid multiple binding warnings -->
         <exclude>org.slf4j:slf4j-api</exclude>
-        <exclude>org.slf4j:slf4j-log4j12</exclude>
+        <exclude>org.slf4j:slf4j-reload4j</exclude>
         <exclude>org.hsqldb:hsqldb</exclude>
       </excludes>
     </dependencySet>
diff --git a/hadoop-assemblies/src/main/resources/assemblies/hadoop-httpfs-dist.xml b/hadoop-assemblies/src/main/resources/assemblies/hadoop-httpfs-dist.xml
index d698a3005d429..bec2f94b95ea1 100644
--- a/hadoop-assemblies/src/main/resources/assemblies/hadoop-httpfs-dist.xml
+++ b/hadoop-assemblies/src/main/resources/assemblies/hadoop-httpfs-dist.xml
@@ -69,7 +69,7 @@
         <exclude>org.apache.hadoop:hadoop-hdfs</exclude>
         <!-- use slf4j from common to avoid multiple binding warnings -->
         <exclude>org.slf4j:slf4j-api</exclude>
-        <exclude>org.slf4j:slf4j-log4j12</exclude>
+        <exclude>org.slf4j:slf4j-reload4j</exclude>
         <exclude>org.hsqldb:hsqldb</exclude>
       </excludes>
     </dependencySet>
diff --git a/hadoop-assemblies/src/main/resources/assemblies/hadoop-kms-dist.xml b/hadoop-assemblies/src/main/resources/assemblies/hadoop-kms-dist.xml
index ff6f99080cafd..e5e6834b04206 100644
--- a/hadoop-assemblies/src/main/resources/assemblies/hadoop-kms-dist.xml
+++ b/hadoop-assemblies/src/main/resources/assemblies/hadoop-kms-dist.xml
@@ -69,7 +69,7 @@
         <exclude>org.apache.hadoop:hadoop-hdfs</exclude>
         <!-- use slf4j from common to avoid multiple binding warnings -->
         <exclude>org.slf4j:slf4j-api</exclude>
-        <exclude>org.slf4j:slf4j-log4j12</exclude>
+        <exclude>org.slf4j:slf4j-reload4j</exclude>
         <exclude>org.hsqldb:hsqldb</exclude>
       </excludes>
     </dependencySet>
diff --git a/hadoop-assemblies/src/main/resources/assemblies/hadoop-mapreduce-dist.xml b/hadoop-assemblies/src/main/resources/assemblies/hadoop-mapreduce-dist.xml
index 06a55d6d06a72..28d5ebe9f605d 100644
--- a/hadoop-assemblies/src/main/resources/assemblies/hadoop-mapreduce-dist.xml
+++ b/hadoop-assemblies/src/main/resources/assemblies/hadoop-mapreduce-dist.xml
@@ -179,7 +179,7 @@
         <exclude>org.apache.hadoop:hadoop-hdfs</exclude>
         <!-- use slf4j from common to avoid multiple binding warnings -->
         <exclude>org.slf4j:slf4j-api</exclude>
-        <exclude>org.slf4j:slf4j-log4j12</exclude>
+        <exclude>org.slf4j:slf4j-reload4j</exclude>
         <exclude>org.hsqldb:hsqldb</exclude>
         <exclude>jdiff:jdiff:jar</exclude>
       </excludes>
diff --git a/hadoop-assemblies/src/main/resources/assemblies/hadoop-nfs-dist.xml b/hadoop-assemblies/src/main/resources/assemblies/hadoop-nfs-dist.xml
index cb3d9cdf24978..59000c071131c 100644
--- a/hadoop-assemblies/src/main/resources/assemblies/hadoop-nfs-dist.xml
+++ b/hadoop-assemblies/src/main/resources/assemblies/hadoop-nfs-dist.xml
@@ -40,7 +40,7 @@
         <exclude>org.apache.hadoop:hadoop-hdfs</exclude>
         <!-- use slf4j from common to avoid multiple binding warnings -->
         <exclude>org.slf4j:slf4j-api</exclude>
-        <exclude>org.slf4j:slf4j-log4j12</exclude>
+        <exclude>org.slf4j:slf4j-reload4j</exclude>
         <exclude>org.hsqldb:hsqldb</exclude>
       </excludes>
     </dependencySet>
diff --git a/hadoop-assemblies/src/main/resources/assemblies/hadoop-tools.xml b/hadoop-assemblies/src/main/resources/assemblies/hadoop-tools.xml
index db744f511dadb..c01d9c4282089 100644
--- a/hadoop-assemblies/src/main/resources/assemblies/hadoop-tools.xml
+++ b/hadoop-assemblies/src/main/resources/assemblies/hadoop-tools.xml
@@ -229,7 +229,7 @@
         <exclude>org.apache.hadoop:hadoop-pipes</exclude>
         <!-- use slf4j from common to avoid multiple binding warnings -->
         <exclude>org.slf4j:slf4j-api</exclude>
-        <exclude>org.slf4j:slf4j-log4j12</exclude>
+        <exclude>org.slf4j:slf4j-reload4j</exclude>
       </excludes>
     </dependencySet>
   </dependencySets>
diff --git a/hadoop-assemblies/src/main/resources/assemblies/hadoop-yarn-dist.xml b/hadoop-assemblies/src/main/resources/assemblies/hadoop-yarn-dist.xml
index 4da4ac5acb98b..cd86ce4e41766 100644
--- a/hadoop-assemblies/src/main/resources/assemblies/hadoop-yarn-dist.xml
+++ b/hadoop-assemblies/src/main/resources/assemblies/hadoop-yarn-dist.xml
@@ -309,7 +309,7 @@
         <exclude>org.apache.hadoop:*</exclude>
         <!-- use slf4j from common to avoid multiple binding warnings -->
         <exclude>org.slf4j:slf4j-api</exclude>
-        <exclude>org.slf4j:slf4j-log4j12</exclude>
+        <exclude>org.slf4j:slf4j-reload4j</exclude>
         <exclude>org.hsqldb:hsqldb</exclude>
       </excludes>
     </dependencySet>
diff --git a/hadoop-client-modules/hadoop-client-check-invariants/pom.xml b/hadoop-client-modules/hadoop-client-check-invariants/pom.xml
index b1c00678406d7..224788e7c7edb 100644
--- a/hadoop-client-modules/hadoop-client-check-invariants/pom.xml
+++ b/hadoop-client-modules/hadoop-client-check-invariants/pom.xml
@@ -84,8 +84,8 @@
                     <exclude>org.slf4j:slf4j-api</exclude>
                     <!-- Leave commons-logging unshaded so downstream users can configure logging. -->
                     <exclude>commons-logging:commons-logging</exclude>
-                    <!-- Leave log4j unshaded so downstream users can configure logging. -->
-                    <exclude>log4j:log4j</exclude>
+                    <!-- Leave reload4j unshaded so downstream users can configure logging. -->
+                    <exclude>ch.qos.reload4j:reload4j</exclude>
                     <!-- Leave javax annotations we need exposed -->
                     <exclude>com.google.code.findbugs:jsr305</exclude>
                     <!-- Leave bouncycastle unshaded because it's signed with a special Oracle certificate so it can be a custom JCE security provider -->
diff --git a/hadoop-client-modules/hadoop-client-check-test-invariants/pom.xml b/hadoop-client-modules/hadoop-client-check-test-invariants/pom.xml
index 0e576ac6f0666..40fc34725e230 100644
--- a/hadoop-client-modules/hadoop-client-check-test-invariants/pom.xml
+++ b/hadoop-client-modules/hadoop-client-check-test-invariants/pom.xml
@@ -88,8 +88,8 @@
                     <exclude>org.slf4j:slf4j-api</exclude>
                     <!-- Leave commons-logging unshaded so downstream users can configure logging. -->
                     <exclude>commons-logging:commons-logging</exclude>
-                    <!-- Leave log4j unshaded so downstream users can configure logging. -->
-                    <exclude>log4j:log4j</exclude>
+                    <!-- Leave reload4j unshaded so downstream users can configure logging. -->
+                    <exclude>ch.qos.reload4j:reload4j</exclude>
                     <!-- Leave JUnit unshaded so downstream can use our test helper classes -->
                     <exclude>junit:junit</exclude>
                     <!-- JUnit brings in hamcrest -->
diff --git a/hadoop-client-modules/hadoop-client-integration-tests/pom.xml b/hadoop-client-modules/hadoop-client-integration-tests/pom.xml
index ba593ebd1b42d..f9f06628fdfee 100644
--- a/hadoop-client-modules/hadoop-client-integration-tests/pom.xml
+++ b/hadoop-client-modules/hadoop-client-integration-tests/pom.xml
@@ -33,8 +33,8 @@
 
   <dependencies>
     <dependency>
-      <groupId>log4j</groupId>
-      <artifactId>log4j</artifactId>
+      <groupId>ch.qos.reload4j</groupId>
+      <artifactId>reload4j</artifactId>
       <scope>test</scope>
     </dependency>
     <dependency>
@@ -42,11 +42,6 @@
       <artifactId>slf4j-api</artifactId>
       <scope>test</scope>
     </dependency>
-    <dependency>
-      <groupId>org.slf4j</groupId>
-      <artifactId>slf4j-log4j12</artifactId>
-      <scope>test</scope>
-    </dependency>
     <dependency>
       <groupId>junit</groupId>
       <artifactId>junit</artifactId>
diff --git a/hadoop-client-modules/hadoop-client-minicluster/pom.xml b/hadoop-client-modules/hadoop-client-minicluster/pom.xml
index 06e36837a2098..19a72c969b667 100644
--- a/hadoop-client-modules/hadoop-client-minicluster/pom.xml
+++ b/hadoop-client-modules/hadoop-client-minicluster/pom.xml
@@ -193,8 +193,12 @@
           <artifactId>slf4j-log4j12</artifactId>
         </exclusion>
         <exclusion>
-          <groupId>log4j</groupId>
-          <artifactId>log4j</artifactId>
+          <groupId>org.slf4j</groupId>
+          <artifactId>slf4j-reload4j</artifactId>
+        </exclusion>
+        <exclusion>
+          <groupId>ch.qos.reload4j</groupId>
+          <artifactId>reload4j</artifactId>
         </exclusion>
         <exclusion>
           <groupId>com.fasterxml.jackson.core</groupId>
@@ -696,7 +700,7 @@
                       <exclude>commons-logging:commons-logging</exclude>
                       <exclude>junit:junit</exclude>
                       <exclude>com.google.code.findbugs:jsr305</exclude>
-                      <exclude>log4j:log4j</exclude>
+                      <exclude>ch.qos.reload4j:reload4j</exclude>
                       <exclude>org.eclipse.jetty.websocket:websocket-common</exclude>
                       <exclude>org.eclipse.jetty.websocket:websocket-api</exclude>
                       <!-- We need a filter that matches just those things that are included in the above artiacts -->
diff --git a/hadoop-client-modules/hadoop-client-runtime/pom.xml b/hadoop-client-modules/hadoop-client-runtime/pom.xml
index 35fbd7665fb26..321e90b03803d 100644
--- a/hadoop-client-modules/hadoop-client-runtime/pom.xml
+++ b/hadoop-client-modules/hadoop-client-runtime/pom.xml
@@ -103,8 +103,8 @@
          * one of the three custom log4j appenders we have
       -->
     <dependency>
-      <groupId>log4j</groupId>
-      <artifactId>log4j</artifactId>
+      <groupId>ch.qos.reload4j</groupId>
+      <artifactId>reload4j</artifactId>
       <scope>runtime</scope>
       <optional>true</optional>
     </dependency>
@@ -150,8 +150,8 @@
                       <exclude>org.slf4j:slf4j-api</exclude>
                       <!-- Leave commons-logging unshaded so downstream users can configure logging. -->
                       <exclude>commons-logging:commons-logging</exclude>
-                      <!-- Leave log4j unshaded so downstream users can configure logging. -->
-                      <exclude>log4j:log4j</exclude>
+                      <!-- Leave reload4j unshaded so downstream users can configure logging. -->
+                      <exclude>ch.qos.reload4j:reload4j</exclude>
                       <!-- Leave javax APIs that are stable -->
                       <!-- the jdk ships part of the javax.annotation namespace, so if we want to relocate this we'll have to care it out by class :( -->
                       <exclude>com.google.code.findbugs:jsr305</exclude>
diff --git a/hadoop-client-modules/hadoop-client/pom.xml b/hadoop-client-modules/hadoop-client/pom.xml
index 5299c9e8713df..ff0db4789dbcd 100644
--- a/hadoop-client-modules/hadoop-client/pom.xml
+++ b/hadoop-client-modules/hadoop-client/pom.xml
@@ -218,8 +218,8 @@
           <artifactId>commons-cli</artifactId>
         </exclusion>
         <exclusion>
-          <groupId>log4j</groupId>
-          <artifactId>log4j</artifactId>
+          <groupId>ch.qos.reload4j</groupId>
+          <artifactId>reload4j</artifactId>
         </exclusion>
         <exclusion>
           <groupId>com.sun.jersey</groupId>
@@ -294,11 +294,6 @@
           <groupId>io.netty</groupId>
           <artifactId>netty</artifactId>
         </exclusion>
-        <!-- No slf4j backends for downstream clients -->
-        <exclusion>
-          <groupId>org.slf4j</groupId>
-          <artifactId>slf4j-log4j12</artifactId>
-        </exclusion>
       </exclusions>
     </dependency>
 
@@ -327,11 +322,6 @@
           <groupId>io.netty</groupId>
           <artifactId>netty</artifactId>
         </exclusion>
-        <!-- No slf4j backends for downstream clients -->
-        <exclusion>
-          <groupId>org.slf4j</groupId>
-          <artifactId>slf4j-log4j12</artifactId>
-        </exclusion>
       </exclusions>
     </dependency>
 
diff --git a/hadoop-common-project/hadoop-auth-examples/pom.xml b/hadoop-common-project/hadoop-auth-examples/pom.xml
index 4deda432797e0..36b3831a01b8c 100644
--- a/hadoop-common-project/hadoop-auth-examples/pom.xml
+++ b/hadoop-common-project/hadoop-auth-examples/pom.xml
@@ -47,13 +47,13 @@
       <scope>compile</scope>
     </dependency>
     <dependency>
-      <groupId>log4j</groupId>
-      <artifactId>log4j</artifactId>
+      <groupId>ch.qos.reload4j</groupId>
+      <artifactId>reload4j</artifactId>
       <scope>runtime</scope>
     </dependency>
     <dependency>
       <groupId>org.slf4j</groupId>
-      <artifactId>slf4j-log4j12</artifactId>
+      <artifactId>slf4j-reload4j</artifactId>
       <scope>runtime</scope>
     </dependency>
   </dependencies>
diff --git a/hadoop-common-project/hadoop-auth/pom.xml b/hadoop-common-project/hadoop-auth/pom.xml
index 6eaa4fdfce5b4..cafa60c3be420 100644
--- a/hadoop-common-project/hadoop-auth/pom.xml
+++ b/hadoop-common-project/hadoop-auth/pom.xml
@@ -82,13 +82,13 @@
       <scope>compile</scope>
     </dependency>
     <dependency>
-      <groupId>log4j</groupId>
-      <artifactId>log4j</artifactId>
+      <groupId>ch.qos.reload4j</groupId>
+      <artifactId>reload4j</artifactId>
       <scope>runtime</scope>
     </dependency>
     <dependency>
       <groupId>org.slf4j</groupId>
-      <artifactId>slf4j-log4j12</artifactId>
+      <artifactId>slf4j-reload4j</artifactId>
       <scope>runtime</scope>
     </dependency>
     <dependency>
@@ -185,6 +185,12 @@
       <artifactId>apacheds-server-integ</artifactId>
       <version>${apacheds.version}</version>
       <scope>test</scope>
+      <exclusions>
+        <exclusion>
+          <groupId>log4j</groupId>
+          <artifactId>log4j</artifactId>
+        </exclusion>
+      </exclusions>
     </dependency>
     <dependency>
       <groupId>org.apache.directory.server</groupId>
diff --git a/hadoop-common-project/hadoop-common/pom.xml b/hadoop-common-project/hadoop-common/pom.xml
index d8e2dd3542223..d3a00464b2be9 100644
--- a/hadoop-common-project/hadoop-common/pom.xml
+++ b/hadoop-common-project/hadoop-common/pom.xml
@@ -186,8 +186,8 @@
       <scope>compile</scope>
     </dependency>
     <dependency>
-      <groupId>log4j</groupId>
-      <artifactId>log4j</artifactId>
+      <groupId>ch.qos.reload4j</groupId>
+      <artifactId>reload4j</artifactId>
       <scope>compile</scope>
     </dependency>
     <dependency>
@@ -238,7 +238,7 @@
     </dependency>
     <dependency>
       <groupId>org.slf4j</groupId>
-      <artifactId>slf4j-log4j12</artifactId>
+      <artifactId>slf4j-reload4j</artifactId>
       <scope>compile</scope>
     </dependency>
     <dependency>
diff --git a/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/util/GenericsUtil.java b/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/util/GenericsUtil.java
index 2d35b15bc5900..df81bf1209360 100644
--- a/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/util/GenericsUtil.java
+++ b/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/util/GenericsUtil.java
@@ -89,7 +89,7 @@ public static boolean isLog4jLogger(Class<?> clazz) {
     }
     Logger log = LoggerFactory.getLogger(clazz);
     try {
-      Class log4jClass = Class.forName("org.slf4j.impl.Log4jLoggerAdapter");
+      Class log4jClass = Class.forName("org.slf4j.impl.Reload4jLoggerAdapter");
       return log4jClass.isInstance(log);
     } catch (ClassNotFoundException e) {
       return false;
diff --git a/hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/util/TestClassUtil.java b/hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/util/TestClassUtil.java
index 98e182236c94c..04337929abd9f 100644
--- a/hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/util/TestClassUtil.java
+++ b/hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/util/TestClassUtil.java
@@ -35,6 +35,6 @@ public void testFindContainingJar() {
     Assert.assertTrue("Containing jar does not exist on file system ",
         jarFile.exists());
     Assert.assertTrue("Incorrect jar file " + containingJar,
-        jarFile.getName().matches("log4j.*[.]jar"));
+        jarFile.getName().matches("reload4j.*[.]jar"));
   }
 }
diff --git a/hadoop-common-project/hadoop-kms/pom.xml b/hadoop-common-project/hadoop-kms/pom.xml
index 96588a22b9419..93ab9e4b11330 100644
--- a/hadoop-common-project/hadoop-kms/pom.xml
+++ b/hadoop-common-project/hadoop-kms/pom.xml
@@ -134,8 +134,8 @@
       <type>test-jar</type>
     </dependency>
     <dependency>
-      <groupId>log4j</groupId>
-      <artifactId>log4j</artifactId>
+      <groupId>ch.qos.reload4j</groupId>
+      <artifactId>reload4j</artifactId>
       <scope>compile</scope>
     </dependency>
     <dependency>
@@ -145,7 +145,7 @@
     </dependency>
     <dependency>
       <groupId>org.slf4j</groupId>
-      <artifactId>slf4j-log4j12</artifactId>
+      <artifactId>slf4j-reload4j</artifactId>
       <scope>runtime</scope>
     </dependency>
     <dependency>
diff --git a/hadoop-common-project/hadoop-minikdc/pom.xml b/hadoop-common-project/hadoop-minikdc/pom.xml
index c292aebbe3656..589a10801800e 100644
--- a/hadoop-common-project/hadoop-minikdc/pom.xml
+++ b/hadoop-common-project/hadoop-minikdc/pom.xml
@@ -40,7 +40,7 @@
     </dependency>
     <dependency>
       <groupId>org.slf4j</groupId>
-      <artifactId>slf4j-log4j12</artifactId>
+      <artifactId>slf4j-reload4j</artifactId>
       <scope>compile</scope>
     </dependency>
     <dependency>
diff --git a/hadoop-common-project/hadoop-nfs/pom.xml b/hadoop-common-project/hadoop-nfs/pom.xml
index 33d8b3710c528..440d3530c106a 100644
--- a/hadoop-common-project/hadoop-nfs/pom.xml
+++ b/hadoop-common-project/hadoop-nfs/pom.xml
@@ -79,13 +79,13 @@
       <scope>compile</scope>
     </dependency>
     <dependency>
-      <groupId>log4j</groupId>
-      <artifactId>log4j</artifactId>
+      <groupId>ch.qos.reload4j</groupId>
+      <artifactId>reload4j</artifactId>
       <scope>runtime</scope>
     </dependency>
     <dependency>
       <groupId>org.slf4j</groupId>
-      <artifactId>slf4j-log4j12</artifactId>
+      <artifactId>slf4j-reload4j</artifactId>
       <scope>runtime</scope>
     </dependency>
     <dependency>
diff --git a/hadoop-hdfs-project/hadoop-hdfs-client/pom.xml b/hadoop-hdfs-project/hadoop-hdfs-client/pom.xml
index 9bb0932d32867..4e4a6dbe04158 100644
--- a/hadoop-hdfs-project/hadoop-hdfs-client/pom.xml
+++ b/hadoop-hdfs-project/hadoop-hdfs-client/pom.xml
@@ -56,8 +56,8 @@ https://maven.apache.org/xsd/maven-4.0.0.xsd">
           <artifactId>commons-logging</artifactId>
         </exclusion>
         <exclusion>
-          <groupId>log4j</groupId>
-          <artifactId>log4j</artifactId>
+          <groupId>ch.qos.reload4j</groupId>
+          <artifactId>reload4j</artifactId>
         </exclusion>
         <exclusion>
           <groupId>org.slf4j</groupId>
diff --git a/hadoop-hdfs-project/hadoop-hdfs-httpfs/pom.xml b/hadoop-hdfs-project/hadoop-hdfs-httpfs/pom.xml
index a1b3ab1f92397..567b0f8960945 100644
--- a/hadoop-hdfs-project/hadoop-hdfs-httpfs/pom.xml
+++ b/hadoop-hdfs-project/hadoop-hdfs-httpfs/pom.xml
@@ -179,8 +179,8 @@
       <type>test-jar</type>
     </dependency>
     <dependency>
-      <groupId>log4j</groupId>
-      <artifactId>log4j</artifactId>
+      <groupId>ch.qos.reload4j</groupId>
+      <artifactId>reload4j</artifactId>
       <scope>compile</scope>
     </dependency>
     <dependency>
@@ -190,7 +190,7 @@
     </dependency>
     <dependency>
       <groupId>org.slf4j</groupId>
-      <artifactId>slf4j-log4j12</artifactId>
+      <artifactId>slf4j-reload4j</artifactId>
       <scope>runtime</scope>
     </dependency>
     <!-- 'mvn dependency:analyze' fails to detect use of this dependency -->
diff --git a/hadoop-hdfs-project/hadoop-hdfs-nfs/pom.xml b/hadoop-hdfs-project/hadoop-hdfs-nfs/pom.xml
index 24599a2b244a4..7127a3781785d 100644
--- a/hadoop-hdfs-project/hadoop-hdfs-nfs/pom.xml
+++ b/hadoop-hdfs-project/hadoop-hdfs-nfs/pom.xml
@@ -144,8 +144,8 @@ https://maven.apache.org/xsd/maven-4.0.0.xsd">
       <scope>compile</scope>
     </dependency>
     <dependency>
-      <groupId>log4j</groupId>
-      <artifactId>log4j</artifactId>
+      <groupId>ch.qos.reload4j</groupId>
+      <artifactId>reload4j</artifactId>
       <scope>compile</scope>
     </dependency>
     <dependency>
@@ -170,7 +170,7 @@ https://maven.apache.org/xsd/maven-4.0.0.xsd">
     </dependency>
     <dependency>
       <groupId>org.slf4j</groupId>
-      <artifactId>slf4j-log4j12</artifactId>
+      <artifactId>slf4j-reload4j</artifactId>
       <scope>provided</scope>
     </dependency>
     <dependency>
diff --git a/hadoop-hdfs-project/hadoop-hdfs-rbf/pom.xml b/hadoop-hdfs-project/hadoop-hdfs-rbf/pom.xml
index d4d5c1eb33983..a19928b0f0ce0 100644
--- a/hadoop-hdfs-project/hadoop-hdfs-rbf/pom.xml
+++ b/hadoop-hdfs-project/hadoop-hdfs-rbf/pom.xml
@@ -54,8 +54,8 @@ https://maven.apache.org/xsd/maven-4.0.0.xsd">
           <artifactId>commons-logging</artifactId>
         </exclusion>
         <exclusion>
-          <groupId>log4j</groupId>
-          <artifactId>log4j</artifactId>
+          <groupId>ch.qos.reload4j</groupId>
+          <artifactId>reload4j</artifactId>
         </exclusion>
       </exclusions>
     </dependency>
@@ -82,7 +82,7 @@ https://maven.apache.org/xsd/maven-4.0.0.xsd">
     </dependency>
     <dependency>
       <groupId>org.slf4j</groupId>
-      <artifactId>slf4j-log4j12</artifactId>
+      <artifactId>slf4j-reload4j</artifactId>
       <scope>provided</scope>
     </dependency>
     <dependency>
diff --git a/hadoop-hdfs-project/hadoop-hdfs/pom.xml b/hadoop-hdfs-project/hadoop-hdfs/pom.xml
index b51c7154f7b92..8be677de18121 100644
--- a/hadoop-hdfs-project/hadoop-hdfs/pom.xml
+++ b/hadoop-hdfs-project/hadoop-hdfs/pom.xml
@@ -128,8 +128,8 @@ https://maven.apache.org/xsd/maven-4.0.0.xsd">
       <scope>compile</scope>
     </dependency>
     <dependency>
-      <groupId>log4j</groupId>
-      <artifactId>log4j</artifactId>
+      <groupId>ch.qos.reload4j</groupId>
+      <artifactId>reload4j</artifactId>
       <scope>compile</scope>
     </dependency>
     <dependency>
@@ -172,7 +172,7 @@ https://maven.apache.org/xsd/maven-4.0.0.xsd">
     </dependency>
     <dependency>
       <groupId>org.slf4j</groupId>
-      <artifactId>slf4j-log4j12</artifactId>
+      <artifactId>slf4j-reload4j</artifactId>
       <scope>provided</scope>
     </dependency>
     <dependency>
diff --git a/hadoop-mapreduce-project/hadoop-mapreduce-client/pom.xml b/hadoop-mapreduce-project/hadoop-mapreduce-client/pom.xml
index d6b453fb3b034..798361d3d06c3 100644
--- a/hadoop-mapreduce-project/hadoop-mapreduce-client/pom.xml
+++ b/hadoop-mapreduce-project/hadoop-mapreduce-client/pom.xml
@@ -90,7 +90,7 @@
     </dependency>
     <dependency>
      <groupId>org.slf4j</groupId>
-       <artifactId>slf4j-log4j12</artifactId>
+       <artifactId>slf4j-reload4j</artifactId>
     </dependency>
     <dependency>
       <groupId>org.apache.hadoop</groupId>
diff --git a/hadoop-mapreduce-project/pom.xml b/hadoop-mapreduce-project/pom.xml
index 3ce66a10a84f7..228fe55a6d0a6 100644
--- a/hadoop-mapreduce-project/pom.xml
+++ b/hadoop-mapreduce-project/pom.xml
@@ -92,7 +92,7 @@
     </dependency>
     <dependency>
      <groupId>org.slf4j</groupId>
-       <artifactId>slf4j-log4j12</artifactId>
+       <artifactId>slf4j-reload4j</artifactId>
     </dependency>
     <dependency>
       <groupId>org.apache.hadoop</groupId>
diff --git a/hadoop-project/pom.xml b/hadoop-project/pom.xml
index ec07369977b32..5fce14cf0edd5 100644
--- a/hadoop-project/pom.xml
+++ b/hadoop-project/pom.xml
@@ -80,8 +80,8 @@
     <httpcore.version>4.4.13</httpcore.version>
 
     <!-- SLF4J/LOG4J version -->
-    <slf4j.version>1.7.30</slf4j.version>
-    <log4j.version>1.2.17</log4j.version>
+    <slf4j.version>1.7.36</slf4j.version>
+    <reload4j.version>1.2.18.3</reload4j.version>
     <log4j2.version>2.17.1</log4j2.version>
 
     <!-- com.google.re2j version -->
@@ -327,12 +327,28 @@
         <groupId>org.apache.hadoop</groupId>
         <artifactId>hadoop-common</artifactId>
         <version>${hadoop.version}</version>
+        <exclusions>
+          <exclusion>
+            <groupId>org.slf4j</groupId>
+            <artifactId>slf4j-reload4j</artifactId>
+          </exclusion>
+        </exclusions>
       </dependency>
       <dependency>
         <groupId>org.apache.hadoop</groupId>
         <artifactId>hadoop-common</artifactId>
         <version>${hadoop.version}</version>
         <type>test-jar</type>
+        <exclusions>
+          <exclusion>
+            <groupId>log4j</groupId>
+            <artifactId>log4j</artifactId>
+          </exclusion>
+          <exclusion>
+            <groupId>org.slf4j</groupId>
+            <artifactId>slf4j-log4j12</artifactId>
+          </exclusion>
+        </exclusions>
       </dependency>
       <dependency>
         <groupId>org.apache.hadoop</groupId>
@@ -409,6 +425,12 @@
         <groupId>org.apache.hadoop</groupId>
         <artifactId>hadoop-mapreduce-client-core</artifactId>
         <version>${hadoop.version}</version>
+        <exclusions>
+          <exclusion>
+            <groupId>org.slf4j</groupId>
+            <artifactId>slf4j-reload4j</artifactId>
+          </exclusion>
+        </exclusions>
       </dependency>
 
       <dependency>
@@ -422,6 +444,12 @@
         <groupId>org.apache.hadoop</groupId>
         <artifactId>hadoop-mapreduce-client-jobclient</artifactId>
         <version>${hadoop.version}</version>
+        <exclusions>
+          <exclusion>
+            <groupId>org.slf4j</groupId>
+            <artifactId>slf4j-reload4j</artifactId>
+          </exclusion>
+        </exclusions>
       </dependency>
 
       <dependency>
@@ -1026,9 +1054,9 @@
         <version>${commons-logging-api.version}</version>
       </dependency>
       <dependency>
-        <groupId>log4j</groupId>
-        <artifactId>log4j</artifactId>
-        <version>${log4j.version}</version>
+        <groupId>ch.qos.reload4j</groupId>
+        <artifactId>reload4j</artifactId>
+        <version>${reload4j.version}</version>
         <exclusions>
           <exclusion>
             <groupId>com.sun.jdmk</groupId>
@@ -1178,7 +1206,7 @@
       </dependency>
       <dependency>
         <groupId>org.slf4j</groupId>
-        <artifactId>slf4j-log4j12</artifactId>
+        <artifactId>slf4j-reload4j</artifactId>
         <version>${slf4j.version}</version>
       </dependency>
       <dependency>
@@ -1369,6 +1397,10 @@
             <groupId>org.apache.kerby</groupId>
             <artifactId>kerby-config</artifactId>
           </exclusion>
+          <exclusion>
+            <groupId>log4j</groupId>
+            <artifactId>log4j</artifactId>
+          </exclusion>
           <exclusion>
             <groupId>org.slf4j</groupId>
             <artifactId>slf4j-api</artifactId>
@@ -1377,6 +1409,10 @@
             <groupId>org.slf4j</groupId>
             <artifactId>slf4j-log4j12</artifactId>
           </exclusion>
+          <exclusion>
+            <groupId>org.slf4j</groupId>
+            <artifactId>slf4j-reload4j</artifactId>
+          </exclusion>
         </exclusions>
       </dependency>
       <dependency>
@@ -1405,6 +1441,14 @@
             <groupId>io.netty</groupId>
             <artifactId>netty-transport-native-epoll</artifactId>
           </exclusion>
+          <exclusion>
+            <groupId>log4j</groupId>
+            <artifactId>log4j</artifactId>
+          </exclusion>
+          <exclusion>
+            <groupId>org.slf4j</groupId>
+            <artifactId>slf4j-log4j12</artifactId>
+          </exclusion>
         </exclusions>
       </dependency>
       <dependency>
@@ -1549,6 +1593,10 @@
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-api</artifactId>
          </exclusion>
+         <exclusion>
+           <groupId>log4j</groupId>
+           <artifactId>log4j</artifactId>
+         </exclusion>
        </exclusions>
      </dependency>
      <dependency>
@@ -1657,6 +1705,10 @@
             <artifactId>jdk.tools</artifactId>
             <groupId>jdk.tools</groupId>
           </exclusion>
+          <exclusion>
+            <groupId>log4j</groupId>
+            <artifactId>log4j</artifactId>
+          </exclusion>
         </exclusions>
       </dependency>
       <dependency>
@@ -1665,6 +1717,16 @@
         <version>${hbase.version}</version>
         <scope>test</scope>
         <classifier>tests</classifier>
+        <exclusions>
+          <exclusion>
+            <groupId>log4j</groupId>
+            <artifactId>log4j</artifactId>
+          </exclusion>
+          <exclusion>
+            <groupId>org.slf4j</groupId>
+            <artifactId>slf4j-log4j12</artifactId>
+          </exclusion>
+        </exclusions>
       </dependency>
       <dependency>
         <groupId>org.apache.hbase</groupId>
@@ -1682,6 +1744,28 @@
         <groupId>org.apache.hbase</groupId>
         <artifactId>hbase-server</artifactId>
         <version>${hbase.version}</version>
+        <exclusions>
+          <exclusion>
+            <groupId>log4j</groupId>
+            <artifactId>log4j</artifactId>
+          </exclusion>
+        </exclusions>
+      </dependency>
+      <dependency>
+        <groupId>org.apache.hbase</groupId>
+        <artifactId>hbase-server</artifactId>
+        <version>${hbase.version}</version>
+        <scope>test</scope>
+        <exclusions>
+          <exclusion>
+            <groupId>log4j</groupId>
+            <artifactId>log4j</artifactId>
+          </exclusion>
+          <exclusion>
+            <groupId>org.slf4j</groupId>
+            <artifactId>slf4j-log4j12</artifactId>
+          </exclusion>
+        </exclusions>
       </dependency>
       <dependency>
         <groupId>org.apache.hbase</groupId>
@@ -1689,6 +1773,16 @@
         <version>${hbase.version}</version>
         <scope>test</scope>
         <classifier>tests</classifier>
+        <exclusions>
+          <exclusion>
+            <groupId>log4j</groupId>
+            <artifactId>log4j</artifactId>
+          </exclusion>
+          <exclusion>
+            <groupId>org.slf4j</groupId>
+            <artifactId>slf4j-log4j12</artifactId>
+          </exclusion>
+        </exclusions>
       </dependency>
       <dependency>
         <groupId>org.apache.hbase</groupId>
@@ -1713,6 +1807,14 @@
             <artifactId>jdk.tools</artifactId>
             <groupId>jdk.tools</groupId>
           </exclusion>
+          <exclusion>
+            <groupId>log4j</groupId>
+            <artifactId>log4j</artifactId>
+          </exclusion>
+          <exclusion>
+            <groupId>org.slf4j</groupId>
+            <artifactId>slf4j-log4j12</artifactId>
+          </exclusion>
         </exclusions>
         </dependency>
         <dependency>
@@ -2237,6 +2339,9 @@
                     <exclude>com.sun.jersey.jersey-test-framework:*</exclude>
                     <exclude>com.google.inject:guice</exclude>
                     <exclude>org.ow2.asm:asm</exclude>
+
+                    <exclude>org.slf4j:slf4j-log4j12</exclude>
+                    <exclude>log4j:log4j</exclude>
                   </excludes>
                   <includes>
                     <!-- for JDK 8 support -->
diff --git a/hadoop-tools/hadoop-azure/pom.xml b/hadoop-tools/hadoop-azure/pom.xml
index 40aeec07026cc..53c4430d398cc 100644
--- a/hadoop-tools/hadoop-azure/pom.xml
+++ b/hadoop-tools/hadoop-azure/pom.xml
@@ -294,8 +294,8 @@
     </dependency>
 
     <dependency>
-      <groupId>log4j</groupId>
-      <artifactId>log4j</artifactId>
+      <groupId>ch.qos.reload4j</groupId>
+      <artifactId>reload4j</artifactId>
       <scope>test</scope>
     </dependency>
 
diff --git a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-applications/hadoop-yarn-applications-distributedshell/pom.xml b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-applications/hadoop-yarn-applications-distributedshell/pom.xml
index 7e468bc75684e..6f06d93ec1ab3 100644
--- a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-applications/hadoop-yarn-applications-distributedshell/pom.xml
+++ b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-applications/hadoop-yarn-applications-distributedshell/pom.xml
@@ -46,8 +46,8 @@
     </dependency>
 
     <dependency>
-      <groupId>log4j</groupId>
-      <artifactId>log4j</artifactId>
+      <groupId>ch.qos.reload4j</groupId>
+      <artifactId>reload4j</artifactId>
     </dependency>
     <dependency>
       <groupId>org.apache.hadoop.thirdparty</groupId>
diff --git a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-applications/hadoop-yarn-services/hadoop-yarn-services-core/pom.xml b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-applications/hadoop-yarn-services/hadoop-yarn-services-core/pom.xml
index 4daac9fa235ae..3e0d3bd6bb704 100644
--- a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-applications/hadoop-yarn-services/hadoop-yarn-services-core/pom.xml
+++ b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-applications/hadoop-yarn-services/hadoop-yarn-services-core/pom.xml
@@ -118,8 +118,8 @@
     </dependency>
 
     <dependency>
-      <groupId>log4j</groupId>
-      <artifactId>log4j</artifactId>
+      <groupId>ch.qos.reload4j</groupId>
+      <artifactId>reload4j</artifactId>
       <scope>runtime</scope>
     </dependency>
 
diff --git a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-client/pom.xml b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-client/pom.xml
index dbe4e9048b2df..507f8986dba34 100644
--- a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-client/pom.xml
+++ b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-client/pom.xml
@@ -66,8 +66,8 @@
       <artifactId>commons-cli</artifactId>
     </dependency>
     <dependency>
-      <groupId>log4j</groupId>
-      <artifactId>log4j</artifactId>
+      <groupId>ch.qos.reload4j</groupId>
+      <artifactId>reload4j</artifactId>
     </dependency>
     <dependency>
       <groupId>org.eclipse.jetty.websocket</groupId>
diff --git a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/pom.xml b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/pom.xml
index c6df7594fcc3f..d66a525889067 100644
--- a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/pom.xml
+++ b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/pom.xml
@@ -178,8 +178,8 @@
       <artifactId>jersey-guice</artifactId>
     </dependency>
     <dependency>
-     <groupId>log4j</groupId>
-     <artifactId>log4j</artifactId>
+     <groupId>ch.qos.reload4j</groupId>
+     <artifactId>reload4j</artifactId>
     </dependency>
     <dependency>
       <groupId>com.fasterxml.jackson.core</groupId>
diff --git a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/pom.xml b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/pom.xml
index 025827c42f5f4..1e970e3beff44 100644
--- a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/pom.xml
+++ b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/pom.xml
@@ -174,8 +174,8 @@
       <artifactId>hadoop-shaded-guava</artifactId>
     </dependency>
     <dependency>
-      <groupId>log4j</groupId>
-      <artifactId>log4j</artifactId>
+      <groupId>ch.qos.reload4j</groupId>
+      <artifactId>reload4j</artifactId>
     </dependency>
     <dependency>
       <groupId>org.apache.hadoop</groupId>