diff --git a/src/main/java/com/alipay/remoting/rpc/RpcConnectionFactory.java b/src/main/java/com/alipay/remoting/rpc/RpcConnectionFactory.java
index b8a747aa..78e90445 100644
--- a/src/main/java/com/alipay/remoting/rpc/RpcConnectionFactory.java
+++ b/src/main/java/com/alipay/remoting/rpc/RpcConnectionFactory.java
@@ -20,6 +20,7 @@
 import java.util.concurrent.ConcurrentHashMap;
 import java.util.concurrent.TimeUnit;
 
+import io.netty.buffer.UnpooledByteBufAllocator;
 import org.slf4j.Logger;
 
 import com.alipay.remoting.Connection;
@@ -87,14 +88,14 @@ public void init(final ConnectionEventHandler connectionEventHandler) {
             .option(ChannelOption.SO_REUSEADDR, SystemProperties.tcp_so_reuseaddr())
             .option(ChannelOption.SO_KEEPALIVE, SystemProperties.tcp_so_keepalive());
 
-        /**
-         * init netty write buffer water mark
-         */
+        // init netty write buffer water mark
         initWriteBufferWaterMark();
 
-        boolean pooledBuffer = SystemProperties.netty_buffer_pooled();
-        if (pooledBuffer) {
-            bootstrap.option(ChannelOption.ALLOCATOR, PooledByteBufAllocator.DEFAULT);
+        // init byte buf allocator
+        if (SystemProperties.netty_buffer_pooled()) {
+            this.bootstrap.option(ChannelOption.ALLOCATOR, PooledByteBufAllocator.DEFAULT);
+        } else {
+            this.bootstrap.option(ChannelOption.ALLOCATOR, UnpooledByteBufAllocator.DEFAULT);
         }
 
         final boolean idleSwitch = SystemProperties.tcp_idle_switch();
diff --git a/src/main/java/com/alipay/remoting/rpc/RpcServer.java b/src/main/java/com/alipay/remoting/rpc/RpcServer.java
index 40cf8ffb..be831aec 100644
--- a/src/main/java/com/alipay/remoting/rpc/RpcServer.java
+++ b/src/main/java/com/alipay/remoting/rpc/RpcServer.java
@@ -49,12 +49,13 @@
 import com.alipay.remoting.rpc.protocol.RpcProtocolManager;
 import com.alipay.remoting.rpc.protocol.RpcProtocolV2;
 import com.alipay.remoting.rpc.protocol.UserProcessor;
+import com.alipay.remoting.util.GlobalSwitch;
 import com.alipay.remoting.util.RemotingUtil;
 import com.alipay.remoting.util.StringUtils;
-import com.alipay.remoting.util.GlobalSwitch;
 
 import io.netty.bootstrap.ServerBootstrap;
 import io.netty.buffer.PooledByteBufAllocator;
+import io.netty.buffer.UnpooledByteBufAllocator;
 import io.netty.channel.ChannelFuture;
 import io.netty.channel.ChannelHandler;
 import io.netty.channel.ChannelInitializer;
@@ -78,7 +79,6 @@ public class RpcServer extends RemotingServer {
     /** logger */
     private static final Logger                         logger                  = BoltLoggerFactory
                                                                                     .getLogger("RpcRemoting");
-
     /** server bootstrap */
     private ServerBootstrap                             bootstrap;
 
@@ -200,10 +200,13 @@ protected void doInit() {
         // set write buffer water mark
         initWriteBufferWaterMark();
 
-        boolean pooledBuffer = SystemProperties.netty_buffer_pooled();
-        if (pooledBuffer) {
+        // init byte buf allocator
+        if (SystemProperties.netty_buffer_pooled()) {
             this.bootstrap.option(ChannelOption.ALLOCATOR, PooledByteBufAllocator.DEFAULT)
                 .childOption(ChannelOption.ALLOCATOR, PooledByteBufAllocator.DEFAULT);
+        } else {
+            this.bootstrap.option(ChannelOption.ALLOCATOR, UnpooledByteBufAllocator.DEFAULT)
+                .childOption(ChannelOption.ALLOCATOR, UnpooledByteBufAllocator.DEFAULT);
         }
 
         final boolean idleSwitch = SystemProperties.tcp_idle_switch();