diff --git a/pom.xml b/pom.xml
index 8801779e..2a70968b 100644
--- a/pom.xml
+++ b/pom.xml
@@ -32,6 +32,14 @@
             <organizationUrl>https://cloud.tencent.com/</organizationUrl>
             <url>https://github.com/yuyang733</url>
         </developer>
+        <developer>
+            <id>alantong</id>
+            <name>Mingda Tong</name>
+            <email>alantong@tencent.com</email>
+            <organization>Tencent Cloud</organization>
+            <organizationUrl>https://cloud.tencent.com/</organizationUrl>
+            <url>https://github.com/vintmd</url>
+        </developer>
     </developers>
 
     <scm>
@@ -45,7 +53,7 @@
         <maven.compiler.source>1.7</maven.compiler.source>
         <maven.compiler.target>1.7</maven.compiler.target>
         <hadoop.version>3.3.0</hadoop.version>
-        <cos_api.version>5.6.112</cos_api.version>
+        <cos_api.version>5.6.137.2</cos_api.version>
         <google.guava.version>24.1.1-jre</google.guava.version>
         <commons_lang3.version>3.1</commons_lang3.version>
         <junit.version>4.8</junit.version>
diff --git a/src/main/java/org/apache/hadoop/fs/CosNativeFileSystemStore.java b/src/main/java/org/apache/hadoop/fs/CosNativeFileSystemStore.java
index 6556c7b6..610bf09e 100644
--- a/src/main/java/org/apache/hadoop/fs/CosNativeFileSystemStore.java
+++ b/src/main/java/org/apache/hadoop/fs/CosNativeFileSystemStore.java
@@ -193,6 +193,9 @@ private void initCOSClient(URI uri, Configuration conf) throws IOException {
                         throw new IOException("The current version does not support L5 resolver.", e);
                     }
                     config.setEndpointResolver(l5EndpointResolver);
+                    // used by cos java sdk to handle
+                    config.turnOnRefreshEndpointAddrSwitch();
+                    config.setHandlerAfterProcess(l5EndpointResolver);
                 }
             }
         } else {
@@ -217,6 +220,7 @@ private void initCOSClient(URI uri, Configuration conf) throws IOException {
                 CosNConfigKeys.COSN_CLIENT_SOCKET_TIMEOUTSEC,
                 CosNConfigKeys.DEFAULT_CLIENT_SOCKET_TIMEOUTSEC);
         config.setSocketTimeout(socketTimeoutSec * 1000);
+
         this.crc32cEnabled = conf.getBoolean(CosNConfigKeys.CRC32C_CHECKSUM_ENABLED,
                 CosNConfigKeys.DEFAULT_CRC32C_CHECKSUM_ENABLED);
         this.completeMPUCheckEnabled = conf.getBoolean(CosNConfigKeys.COSN_COMPLETE_MPU_CHECK,
@@ -1817,7 +1821,7 @@ private <X> Object callCOSClientWithRetry(X request) throws CosServiceException,
                             if (useL5Id) {
                                 if (l5ErrorCodeRetryIndex >= this.l5UpdateMaxRetryTimes) {
                                     // L5上报，进行重试
-                                    l5EndpointResolver.updateRouteResult(-1);
+                                    l5EndpointResolver.handle(-1, 0);
                                     l5ErrorCodeRetryIndex = 1;
                                 } else {
                                     l5ErrorCodeRetryIndex = l5ErrorCodeRetryIndex + 1;
@@ -1883,7 +1887,7 @@ private <X> Object callCOSClientWithRetry(X request) throws CosServiceException,
                 if (useL5Id) {
                     if (l5ErrorCodeRetryIndex >= this.l5UpdateMaxRetryTimes) {
                         // L5上报，进行重试
-                        l5EndpointResolver.updateRouteResult(-1);
+                        l5EndpointResolver.handle(-1, 0);
                         l5ErrorCodeRetryIndex = 1;
                     } else {
                         l5ErrorCodeRetryIndex = l5ErrorCodeRetryIndex + 1;
diff --git a/src/main/java/org/apache/hadoop/fs/cosn/TencentCloudL5EndpointResolver.java b/src/main/java/org/apache/hadoop/fs/cosn/TencentCloudL5EndpointResolver.java
index 6ddf472e..4a23702d 100644
--- a/src/main/java/org/apache/hadoop/fs/cosn/TencentCloudL5EndpointResolver.java
+++ b/src/main/java/org/apache/hadoop/fs/cosn/TencentCloudL5EndpointResolver.java
@@ -1,9 +1,9 @@
 package org.apache.hadoop.fs.cosn;
 
 import com.qcloud.cos.endpoint.EndpointResolver;
+import com.qcloud.cos.http.HandlerAfterProcess;
 
-public interface TencentCloudL5EndpointResolver extends EndpointResolver {
+public interface TencentCloudL5EndpointResolver extends EndpointResolver, HandlerAfterProcess {
     public void setModId(int modId);
     public void setCmdId(int cmdId);
-    public void updateRouteResult(int status);
 }
diff --git a/src/main/java/org/apache/hadoop/fs/cosn/TencentCloudL5EndpointResolverImpl.java b/src/main/java/org/apache/hadoop/fs/cosn/TencentCloudL5EndpointResolverImpl.java
index 58fedcb4..c67629cf 100644
--- a/src/main/java/org/apache/hadoop/fs/cosn/TencentCloudL5EndpointResolverImpl.java
+++ b/src/main/java/org/apache/hadoop/fs/cosn/TencentCloudL5EndpointResolverImpl.java
@@ -50,21 +50,23 @@ public void setCmdId(int cmdId) {
     }
 
     @Override
-    public void updateRouteResult(int status) {
+    public void handle(int status, long costMs) {
+        // which is used by cos java sdk to refresh
         if (null != l5IP && l5Port > 0) {
+            int startUsec = (int)(System.currentTimeMillis() - costMs);
             L5API.L5QOSPacket packet = new L5API.L5QOSPacket();
             packet.ip = this.l5IP;
             packet.port = l5Port;
             packet.cmdid = this.cmdId;
             packet.modid = this.modId;
-            packet.start = this.l5Start;
+            packet.start = startUsec;
 
-            for (int i = 0; i < 5; ++i) {
-                L5API.updateRoute(packet, status);
-            }
+            // because inner already retry many times, give the control into the java sdk.
+            L5API.updateRoute(packet, status);
         } else {
-            LOG.error("Update l5 modid: {} cmdid: {} ip: {} port {} failed.",
-                    this.modId, this.cmdId, this.l5IP, this.l5Port);
+            LOG.error("Update l5 modid: {} cmdid: {} ip: {} port {}, " +
+                            "status {}, costMs {} failed.",
+                    this.modId, this.cmdId, this.l5IP, this.l5Port, status, costMs);
         }
     }