diff --git a/src/main/java/org/redkale/boot/Application.java b/src/main/java/org/redkale/boot/Application.java
index b5ddc1566..db62f272b 100644
--- a/src/main/java/org/redkale/boot/Application.java
+++ b/src/main/java/org/redkale/boot/Application.java
@@ -96,11 +96,27 @@ public final class Application {
      */
     public static final String RESNAME_APP_EXECUTOR = "APP_EXECUTOR";
 
+    /**
+     * 当前进程的客共享AsyncGroup, 有且只有一个server节点NodeServer此字段值才有效
+     *
+     * @since 2.8.0
+     */
+    public static final String RESNAME_APP_GLOBAL_IOGROUP = "APP_GLOBAL_IOGROUP";
+
     /**
      * 当前进程的客户端组， 类型：AsyncGroup
      *
-     * @since 2.3.0
+     * @since 2.8.0
      */
+    public static final String RESNAME_APP_CLIENT_IOGROUP = "APP_CLIENT_IOGROUP";
+
+    /**
+     * 使用RESNAME_APP_CLIENT_IOGROUP代替
+     *
+     * @since 2.3.0
+     *
+     */
+    @Deprecated(since = "2.8.0")
     public static final String RESNAME_APP_CLIENT_ASYNCGROUP = "APP_CLIENT_ASYNCGROUP";
 
     /**
@@ -162,6 +178,9 @@ public final class Application {
     //配置项里的group信息, 注意： 只给SNCP使用
     private final SncpRpcGroups sncpRpcGroups = new SncpRpcGroups();
 
+    //
+    private final AsyncIOGroup globalAsyncGroup;
+
     //给客户端使用，包含SNCP客户端、自定义数据库客户端连接池
     private final AsyncIOGroup clientAsyncGroup;
 
@@ -578,7 +597,17 @@ public final class Application {
         this.resourceFactory.register(RESNAME_APP_EXECUTOR, Executor.class, this.workExecutor);
         this.resourceFactory.register(RESNAME_APP_EXECUTOR, ExecutorService.class, this.workExecutor);
 
-        this.clientAsyncGroup = new AsyncIOGroup("Redkale-DefaultClient-IOThread-%s", clientExecutor, bufferCapacity, bufferPoolSize).skipClose(true);
+        if (config.getAnyValues("server").length < 2) { //只存在一个server节点
+            this.globalAsyncGroup = new AsyncIOGroup("Redkale-Global-IOThread-%s", workExecutor, bufferCapacity, bufferPoolSize).skipClose(true);
+            this.resourceFactory.register(RESNAME_APP_GLOBAL_IOGROUP, AsyncGroup.class, this.globalAsyncGroup);
+            this.resourceFactory.register(RESNAME_APP_GLOBAL_IOGROUP, AsyncIOGroup.class, this.globalAsyncGroup);
+            this.clientAsyncGroup = this.globalAsyncGroup;
+        } else {
+            this.globalAsyncGroup = null;
+            this.clientAsyncGroup = new AsyncIOGroup("Redkale-DefaultClient-IOThread-%s", clientExecutor, bufferCapacity, bufferPoolSize).skipClose(true);
+        }
+        this.resourceFactory.register(RESNAME_APP_CLIENT_IOGROUP, AsyncGroup.class, this.clientAsyncGroup);
+        this.resourceFactory.register(RESNAME_APP_CLIENT_IOGROUP, AsyncIOGroup.class, this.clientAsyncGroup);
         this.resourceFactory.register(RESNAME_APP_CLIENT_ASYNCGROUP, AsyncGroup.class, this.clientAsyncGroup);
 
         this.excludelibs = excludelib0;
diff --git a/src/main/java/org/redkale/net/AsyncNioTcpProtocolServer.java b/src/main/java/org/redkale/net/AsyncNioTcpProtocolServer.java
index f57ccfec3..3fa7cb2f1 100644
--- a/src/main/java/org/redkale/net/AsyncNioTcpProtocolServer.java
+++ b/src/main/java/org/redkale/net/AsyncNioTcpProtocolServer.java
@@ -12,7 +12,9 @@ import java.util.Set;
 import java.util.concurrent.atomic.LongAdder;
 import java.util.function.*;
 import java.util.logging.Level;
+import org.redkale.annotation.Resource;
 import org.redkale.boot.Application;
+import static org.redkale.boot.Application.RESNAME_APP_GLOBAL_IOGROUP;
 import org.redkale.util.*;
 
 /**
@@ -30,6 +32,7 @@ class AsyncNioTcpProtocolServer extends ProtocolServer {
 
     private Selector selector;
 
+    @Resource(name = RESNAME_APP_GLOBAL_IOGROUP, required = false)
     private AsyncIOGroup ioGroup;
 
     private Thread acceptThread;
@@ -118,8 +121,10 @@ class AsyncNioTcpProtocolServer extends ProtocolServer {
             (pool == null ? safeResponsePool : pool).accept(v);
         };
         final String threadNameFormat = server.name == null || server.name.isEmpty() ? "Redkale-IOServletThread-%s" : ("Redkale-" + server.name.replace("Server-", "") + "-IOServletThread-%s");
-        this.ioGroup = new AsyncIOGroup(threadNameFormat, null, safeBufferPool);
-        this.ioGroup.start();
+        if (this.ioGroup == null) {
+            this.ioGroup = new AsyncIOGroup(threadNameFormat, null, safeBufferPool);
+            this.ioGroup.start();
+        }
 
         this.acceptThread = new Thread() {
             {
diff --git a/src/main/java/org/redkale/net/AsyncNioUdpProtocolServer.java b/src/main/java/org/redkale/net/AsyncNioUdpProtocolServer.java
index bc876caf6..f2de5aa07 100644
--- a/src/main/java/org/redkale/net/AsyncNioUdpProtocolServer.java
+++ b/src/main/java/org/redkale/net/AsyncNioUdpProtocolServer.java
@@ -15,7 +15,9 @@ import java.util.concurrent.atomic.LongAdder;
 import java.util.concurrent.locks.ReentrantLock;
 import java.util.function.*;
 import java.util.logging.Level;
+import org.redkale.annotation.Resource;
 import org.redkale.boot.Application;
+import static org.redkale.boot.Application.RESNAME_APP_GLOBAL_IOGROUP;
 import org.redkale.util.*;
 
 /**
@@ -32,6 +34,7 @@ class AsyncNioUdpProtocolServer extends ProtocolServer {
 
     private Selector selector;
 
+    @Resource(name = RESNAME_APP_GLOBAL_IOGROUP, required = false)
     private AsyncIOGroup ioGroup;
 
     private Thread acceptThread;
@@ -111,8 +114,10 @@ class AsyncNioUdpProtocolServer extends ProtocolServer {
             (pool == null ? safeResponsePool : pool).accept(v);
         };
         final String threadNameFormat = server.name == null || server.name.isEmpty() ? "Redkale-IOServletThread-%s" : ("Redkale-" + server.name.replace("Server-", "") + "-IOServletThread-%s");
-        this.ioGroup = new AsyncIOGroup(threadNameFormat, null, safeBufferPool);
-        this.ioGroup.start();
+        if (this.ioGroup == null) {
+            this.ioGroup = new AsyncIOGroup(threadNameFormat, null, safeBufferPool);
+            this.ioGroup.start();
+        }
         udpServerChannel.serverChannel.register(this.selector, SelectionKey.OP_READ);
         this.acceptThread = new Thread() {
             {
diff --git a/src/main/java/org/redkale/source/AbstractDataSqlSource.java b/src/main/java/org/redkale/source/AbstractDataSqlSource.java
index 572f9b090..f2bce2747 100644
--- a/src/main/java/org/redkale/source/AbstractDataSqlSource.java
+++ b/src/main/java/org/redkale/source/AbstractDataSqlSource.java
@@ -59,7 +59,7 @@ public abstract class AbstractDataSqlSource extends AbstractDataSource implement
 
     protected Properties writeConfProps;
 
-    @Resource(name = RESNAME_APP_CLIENT_ASYNCGROUP, required = false)
+    @Resource(name = RESNAME_APP_CLIENT_IOGROUP, required = false)
     protected AsyncGroup clientAsyncGroup;
 
     //配置<executor threads="0"> APP_EXECUTOR资源为null