diff --git a/modules/agent/api/instance.go b/modules/agent/api/instance.go
index 2fca647a..79bdbaf0 100644
--- a/modules/agent/api/instance.go
+++ b/modules/agent/api/instance.go
@@ -625,7 +625,7 @@ func (h *APIHandler) associateESNode(w http.ResponseWriter, req *http.Request, p
 
 func (h *APIHandler) autoAssociateESNode(w http.ResponseWriter, req *http.Request, ps httprouter.Params) {
 	reqBody := struct {
-		ClusterID string `json:"cluster_id"`
+		ClusterIDs []string `json:"cluster_ids"`
 	}{}
 	err := h.DecodeJSON(req, &reqBody)
 	if err != nil {
@@ -633,14 +633,6 @@ func (h *APIHandler) autoAssociateESNode(w http.ResponseWriter, req *http.Reques
 		h.WriteError(w, err.Error(), http.StatusInternalServerError)
 		return
 	}
-	// query cluster basicauth
-	cfg := elastic.GetConfig(reqBody.ClusterID)
-	basicAuth, err := common.GetBasicAuth(cfg)
-	if err != nil {
-		log.Error(err)
-		h.WriteError(w, err.Error(), http.StatusInternalServerError)
-		return
-	}
 	// query not associated nodes info
 	nodesM, err := getUnAssociateNodes()
 	if err != nil {
@@ -662,109 +654,119 @@ func (h *APIHandler) autoAssociateESNode(w http.ResponseWriter, req *http.Reques
 		h.WriteError(w, err.Error(), http.StatusInternalServerError)
 		return
 	}
-	taskSetting, err := getSettingsByClusterID(cfg.ID)
-	if err != nil {
-		log.Error(err)
-		h.WriteError(w, err.Error(), http.StatusInternalServerError)
-		return
-	}
-	for agentID, nodes := range nodesM {
-		var (
-			inst *agent.Instance
-			ok bool
-		)
-		if inst, ok = agents[agentID]; !ok {
-			log.Warnf("agent [%v] was not found", agentID)
-			continue
-		}
-		settings, err := common2.GetAgentSettings(agentID, 0)
+	for _, clusterID := range reqBody.ClusterIDs {
+		// query cluster basicauth
+		cfg := elastic.GetConfig(clusterID)
+		basicAuth, err := common.GetBasicAuth(cfg)
 		if err != nil {
 			log.Error(err)
-			continue
+			h.WriteError(w, err.Error(), http.StatusInternalServerError)
+			return
 		}
-		for _, node := range nodes {
-			host := node.PublishAddress
-			var endpoint string
-			if strings.HasPrefix( host, "::"){
-				instURL, err := url.Parse(inst.Endpoint)
-				if err != nil {
-					log.Error(err)
-					continue
-				}
-				host = instURL.Hostname()
-				endpoint = fmt.Sprintf("%s://%s:%s", node.Schema, host, node.HttpPort)
-			}else{
-				endpoint = fmt.Sprintf("%s://%s", node.Schema, host)
-			}
-			escfg := elastic.ElasticsearchConfig{
-				Endpoint: endpoint,
-				BasicAuth: &basicAuth,
-			}
-			nodeInfo, err := client.GetClient().AuthESNode(context.Background(), inst.GetEndpoint(), escfg)
-			if err != nil {
-				log.Warn(err)
+		taskSetting, err := getSettingsByClusterID(cfg.ID)
+		if err != nil {
+			log.Error(err)
+			h.WriteError(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+		for agentID, nodes := range nodesM {
+			var (
+				inst *agent.Instance
+				ok   bool
+			)
+			if inst, ok = agents[agentID]; !ok {
+				log.Warnf("agent [%v] was not found", agentID)
 				continue
 			}
-			//matched
-			if nodeInfo.ClusterUuid == cfg.ClusterUUID {
-				//update node info
-				nodeInfo.ID = node.ID
-				nodeInfo.AgentID = inst.ID
-				nodeInfo.ClusterID = cfg.ID
-				err = orm.Save(nil, nodeInfo)
+			settings, err := common2.GetAgentSettings(agentID, 0)
+			if err != nil {
+				log.Error(err)
+				continue
+			}
+			for _, node := range nodes {
+				host := node.PublishAddress
+				var endpoint string
+				if strings.HasPrefix(host, "::") {
+					instURL, err := url.Parse(inst.Endpoint)
+					if err != nil {
+						log.Error(err)
+						continue
+					}
+					host = instURL.Hostname()
+					endpoint = fmt.Sprintf("%s://%s:%s", node.Schema, host, node.HttpPort)
+				} else {
+					endpoint = fmt.Sprintf("%s://%s", node.Schema, host)
+				}
+				escfg := elastic.ElasticsearchConfig{
+					Endpoint:  endpoint,
+					BasicAuth: &basicAuth,
+				}
+				nodeInfo, err := client.GetClient().AuthESNode(context.Background(), inst.GetEndpoint(), escfg)
 				if err != nil {
-					log.Error(err)
+					log.Warn(err)
 					continue
 				}
-				setting := pickAgentSettings(settings, node)
-				if setting == nil {
-					tsetting := model.TaskSetting{
-						NodeStats: &model.NodeStatsTask{
-							Enabled: true,
-						},
-						Logs: &model.LogsTask{
-							Enabled:  true,
-							LogsPath: nodeInfo.Path.Logs,
-						},
-					}
-					if taskSetting.IndexStats != nil {
-						tsetting.IndexStats = taskSetting.IndexStats
-						taskSetting.IndexStats = nil
-					}
-					if taskSetting.ClusterHealth != nil {
-						tsetting.ClusterHealth = taskSetting.ClusterHealth
-						taskSetting.ClusterHealth = nil
-					}
-					if taskSetting.ClusterStats != nil {
-						tsetting.ClusterStats = taskSetting.ClusterStats
-						taskSetting.ClusterStats = nil
-					}
-					setting = &agent.Setting{
-						Metadata: agent.SettingsMetadata{
-							Category: "agent",
-							Name:     "task",
-							Labels: util.MapStr{
-								"agent_id":     agentID,
-								"cluster_uuid": nodeInfo.ClusterUuid,
-								"cluster_id":   nodeInfo.ClusterID,
-								"node_uuid":    nodeInfo.NodeUUID,
-								"endpoint":     fmt.Sprintf("%s://%s", nodeInfo.Schema, nodeInfo.PublishAddress),
-							},
-						},
-						Payload: util.MapStr{
-							"task": tsetting,
-						},
-					}
-					err = orm.Create(nil, setting)
+				//matched
+				if nodeInfo.ClusterUuid == cfg.ClusterUUID {
+					//update node info
+					nodeInfo.ID = node.ID
+					nodeInfo.AgentID = inst.ID
+					nodeInfo.ClusterID = cfg.ID
+					err = orm.Save(nil, nodeInfo)
 					if err != nil {
-						log.Error("save agent task setting error: ", err)
-						h.WriteError(w, err.Error(), http.StatusInternalServerError)
-						return
+						log.Error(err)
+						continue
+					}
+					setting := pickAgentSettings(settings, node)
+					if setting == nil {
+						tsetting := model.TaskSetting{
+							NodeStats: &model.NodeStatsTask{
+								Enabled: true,
+							},
+							Logs: &model.LogsTask{
+								Enabled:  true,
+								LogsPath: nodeInfo.Path.Logs,
+							},
+						}
+						if taskSetting.IndexStats != nil {
+							tsetting.IndexStats = taskSetting.IndexStats
+							taskSetting.IndexStats = nil
+						}
+						if taskSetting.ClusterHealth != nil {
+							tsetting.ClusterHealth = taskSetting.ClusterHealth
+							taskSetting.ClusterHealth = nil
+						}
+						if taskSetting.ClusterStats != nil {
+							tsetting.ClusterStats = taskSetting.ClusterStats
+							taskSetting.ClusterStats = nil
+						}
+						setting = &agent.Setting{
+							Metadata: agent.SettingsMetadata{
+								Category: "agent",
+								Name:     "task",
+								Labels: util.MapStr{
+									"agent_id":     agentID,
+									"cluster_uuid": nodeInfo.ClusterUuid,
+									"cluster_id":   nodeInfo.ClusterID,
+									"node_uuid":    nodeInfo.NodeUUID,
+									"endpoint":     fmt.Sprintf("%s://%s", nodeInfo.Schema, nodeInfo.PublishAddress),
+								},
+							},
+							Payload: util.MapStr{
+								"task": tsetting,
+							},
+						}
+						err = orm.Create(nil, setting)
+						if err != nil {
+							log.Error("save agent task setting error: ", err)
+							h.WriteError(w, err.Error(), http.StatusInternalServerError)
+							return
+						}
 					}
 				}
 			}
-		}
 
+		}
 	}
 	h.WriteAckOKJSON(w)
 }
@@ -985,7 +987,7 @@ func getNodesInfoFromES(agentID string) (map[int]*agent.ESNodeInfo, error) {
 
 func getUnAssociateNodes() (map[string][]agent.ESNodeInfo, error){
 	query := util.MapStr{
-		"size": 1200,
+		"size": 3000,
 		"query": util.MapStr{
 			"bool": util.MapStr{
 				"must_not": []util.MapStr{