diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
new file mode 100644
index 0000000..ec708cd
--- /dev/null
+++ b/.github/workflows/release.yml
@@ -0,0 +1,42 @@
+name: Publish And Deploy Demo # 自动部署的名称
+on:
+  push:
+    master: # 当我们提交代码为tag 是以'v'开头的时候才会触发自动部署到服务端 如 git push tag v0.1.0
+
+jobs:
+  build-and-deploy:
+    runs-on: ubuntu-latest # 运行环境，告诉它运行在什么环境
+    steps: # 步骤
+
+      # 第一步：下载源码（CI/CD拉取代码到自己的本地）
+      - name: Checkout
+        uses: actions/checkout@master
+
+      # 第二步：打包构建
+      - name: Build
+        uses: actions/setup-make@master
+      - run: make # 安装第三方包
+
+      # 第三步：发布 Release
+      - name: Create Release # 创建Release，可以在仓库看到一个个版本
+        id: create_release
+        uses: actions/create-release@master
+        env:
+          GITHUB_TOKEN: ${{ secrets.TOKEN }} # 之前GitHub添加的Token
+        with:
+          tag_name: ${{ github.ref }} # (tag)标签名称
+          release_name: Release ${{ github.ref }}
+          draft: false # 是否是草稿
+          prerelease: false # 是否是预发布
+
+      # 第四步：上传构建结果到 Release（把打包的tgz上传到Release）
+      - name: Upload Release Asset
+        id: upload-release-asset
+        uses: actions/upload-release-asset@master
+        env:
+          GITHUB_TOKEN: ${{ secrets.TOKEN }}
+        with:
+          upload_url: ${{ steps.create_release.outputs.upload_url }} # 上传地址，通过创建Release获取到的
+          asset_path: ./release.tgz # 要上传文件
+          asset_name: release.tgz # 上传后的文件名
+          asset_content_type: application/x-tgz
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..723ef36
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+.idea
\ No newline at end of file
diff --git a/src/ClusterServerPool.cpp b/src/ClusterServerPool.cpp
index 35591d2..af1974a 100644
--- a/src/ClusterServerPool.cpp
+++ b/src/ClusterServerPool.cpp
@@ -86,21 +86,46 @@ void ClusterServerPool::refreshRequest(Handler* h)
     h->handleRequest(req);
 }
 
+void ClusterServerPool::removeServer(Server* serv) {
+    if (nullptr == serv) return;
+    logNotice("redis cluster delete old server %s %s %s %s %s",
+              serv->name().data(),
+              serv->addr().data(),
+              serv->roleStr(),
+              serv->masterName().data(),
+              serv->dcName().data());
+    ServerGroup* g = getGroup(serv->name());
+    if (serv->group() && serv->group() != g) {
+        serv->group()->remove(serv);
+    }
+    auto mapServ = mServs.find(serv->addr());
+    if (mapServ != mServs.end())
+    {
+        mServs.erase(mapServ);
+    }
+    delete serv;
+}
+
 void ClusterServerPool::handleResponse(Handler* h, ConnectConnection* s, Request* req, Response* res)
 {
     ClusterNodesParser p;
     p.set(res->body());
     for (auto serv : mServPool) {
         serv->setUpdating(true);
+        logNotice("redis old cluster nodes get node %s %s %s %s",
+                  serv->name().data(),
+                  serv->addr().data(),
+                  serv->roleStr(),
+                  serv->masterName().data());
     }
     while (true) {
         ClusterNodesParser::Status st = p.parse();
         if (st == ClusterNodesParser::Node) {
-            logDebug("redis cluster update parse node %s %s %s %s",
-                     p.nodeId().data(),
-                     p.addr().data(),
-                     p.flags().data(),
-                     p.master().data());
+            logNotice("redis update cluster nodes get node %s %s %s %s",
+                      p.nodeId().data(),
+                      p.addr().data(),
+                      p.flags().data(),
+                      p.master().data());
             if (p.addr().empty()) {
                 logWarn("redis cluster nodes get node invalid %s %s %s %s",
                         p.nodeId().data(),
@@ -189,9 +214,12 @@ void ClusterServerPool::handleResponse(Handler* h, ConnectConnection* s, Request
             return;
         }
     }
-    for (auto serv : mServPool) {
+    for (std::vector<Server*>::iterator it = mServPool.begin(); it != mServPool.end();) {
+        auto serv = *it;
         if (serv->updating()) {
             serv->setUpdating(false);
+            it = mServPool.erase(it);    //删除不在集群中节点
+            removeServer(serv);
             continue;
         }
         if (serv->role() == Server::Master) {
@@ -229,6 +257,7 @@ void ClusterServerPool::handleResponse(Handler* h, ConnectConnection* s, Request
                 g->remove(serv);
             }
         }
+        ++it;
     }
 }
 
diff --git a/src/ClusterServerPool.h b/src/ClusterServerPool.h
index af9e27d..c6536a1 100644
--- a/src/ClusterServerPool.h
+++ b/src/ClusterServerPool.h
@@ -25,6 +25,7 @@ public:
     {
         return mServPool;
     }
+    void removeServer(Server* srv);
 private:
     Server* getServer(Handler* h, Request* req, const String& key) const;
     void refreshRequest(Handler* h);
diff --git a/src/ServerGroup.cpp b/src/ServerGroup.cpp
index e5d088c..5e4cb74 100644
--- a/src/ServerGroup.cpp
+++ b/src/ServerGroup.cpp
@@ -49,14 +49,16 @@ Server* ServerGroup::getServer(Handler* h, Request* req) const
     Server* serv = nullptr;
     if (req->requireWrite()) {
         int cnt = mServs.size();
-        for (int i = 0; i < cnt; ++i) {
+        for (int i = cnt-1; i >= 0; --i) {
             Server* s = mServs[i];
             if (!s->online()) {
                 continue;
             }
             if (s->role() == Server::Master) {
                 serv = s;
-                break;
+                if (!s->fail()){
+                    break;
+                }
             }
         }
     } else if (auto dataCenter = mPool->proxy()->dataCenter()) {