diff --git a/plugin/api/index_management/elasticsearch.go b/plugin/api/index_management/elasticsearch.go
index 345898f1..ece5704e 100644
--- a/plugin/api/index_management/elasticsearch.go
+++ b/plugin/api/index_management/elasticsearch.go
@@ -6,6 +6,7 @@ import (
 	httprouter "infini.sh/framework/core/api/router"
 	"infini.sh/framework/core/elastic"
 	"infini.sh/framework/core/event"
+	"infini.sh/framework/core/host"
 	"infini.sh/framework/core/orm"
 	"infini.sh/framework/core/util"
 	"net/http"
@@ -80,10 +81,19 @@ func (handler APIHandler) ElasticsearchOverviewAction(w http.ResponseWriter, req
 		}
 	}
 
-	hostCount, err := handler.getMetricCount(orm.GetIndexName(elastic.NodeConfig{}), "metadata.host", clusterIDs)
+	hostCount, err := handler.getMetricCount(orm.GetIndexName(host.HostInfo{}), "ip", nil)
 	if err != nil{
 		log.Error(err)
 	}
+	log.Info(hostCount)
+	if v, ok := hostCount.(float64); ok && v == 0 {
+		log.Error("sss")
+		hostCount, err = handler.getMetricCount(orm.GetIndexName(elastic.NodeConfig{}), "metadata.host", clusterIDs)
+		if err != nil{
+			log.Error(err)
+		}
+	}
+
 	nodeCount, err := handler.getMetricCount(orm.GetIndexName(elastic.NodeConfig{}), "id", clusterIDs)
 	if err != nil{
 		log.Error(err)
diff --git a/plugin/api/index_management/indices.go b/plugin/api/index_management/indices.go
index 271378e3..7ab92ccd 100644
--- a/plugin/api/index_management/indices.go
+++ b/plugin/api/index_management/indices.go
@@ -22,7 +22,7 @@ func (handler APIHandler) HandleGetMappingsAction(w http.ResponseWriter, req *ht
 	_, _, idxs, err := client.GetMapping(copyAll, indexName)
 	if err != nil {
 		log.Error(err)
-		resBody["error"] = err
+		resBody["error"] = err.Error()
 		handler.WriteJSON(w, resBody, http.StatusInternalServerError)
 		return
 	}
@@ -91,14 +91,14 @@ func (handler APIHandler) HandleUpdateSettingsAction(w http.ResponseWriter, req
 	err := handler.DecodeJSON(req, &settings)
 	if err != nil {
 		log.Error(err)
-		resBody["error"] = err
+		resBody["error"] = err.Error()
 		handler.WriteJSON(w, resBody, http.StatusInternalServerError)
 		return
 	}
 	err = client.UpdateIndexSettings(indexName, settings)
 	if err != nil {
 		log.Error(err)
-		resBody["error"] = err
+		resBody["error"] = err.Error()
 		handler.WriteJSON(w, resBody, http.StatusInternalServerError)
 		return
 	}
@@ -114,7 +114,7 @@ func (handler APIHandler) HandleDeleteIndexAction(w http.ResponseWriter, req *ht
 	err := client.DeleteIndex(indexName)
 	if err != nil {
 		log.Error(err)
-		resBody["error"] = err
+		resBody["error"] = err.Error()
 		handler.WriteJSON(w, resBody, http.StatusInternalServerError)
 		return
 	}
@@ -132,14 +132,14 @@ func (handler APIHandler) HandleCreateIndexAction(w http.ResponseWriter, req *ht
 	err := handler.DecodeJSON(req, &config)
 	if err != nil {
 		log.Error(err)
-		resBody["error"] = err
+		resBody["error"] = err.Error()
 		handler.WriteJSON(w, resBody, http.StatusInternalServerError)
 		return
 	}
 	err = client.CreateIndex(indexName, config)
 	if err != nil {
 		log.Error(err)
-		resBody["error"] = err
+		resBody["error"] = err.Error()
 		handler.WriteJSON(w, resBody, http.StatusInternalServerError)
 		return
 	}