support update share_max_utilization at runtime

README.md

@@ -112,4 +112,9 @@ GPU is occupied by which job(s)
 **UpdateStrategy**
 ```
 ?aciotn=allocator_update_strategy&strategy=mixed
+```
+
+**UpdateShareMaxUtilization**
+```
+?aciotn=conf_set_share_max_utilization&util=1.5
 ```

src/configuration.go

@@ -145,6 +145,12 @@ func (config *Configuration) SetPreScheduleRatio(ratio float64) bool {
 	return true
 }
 
+func (config *Configuration) SetShareMaxUtilization(value float64) bool {
+	config.ShareMaxUtilization = value
+	log.Info("ShareMaxUtilization is set to ", value)
+	return true
+}
+
 func (config *Configuration) Dump() map[string]interface{} {
 	res := map[string]interface{}{}
 	res["KafkaBrokers"] = config.KafkaBrokers

src/main.go

@@ -358,6 +358,14 @@ func serverAPI(w http.ResponseWriter, r *http.Request) {
 		w.Write(js)
 		break
 
+	case "conf_set_share_max_utilization":
+		log.Debug("conf_set_share_max_utilization")
+		util, _ := strconv.ParseFloat(r.URL.Query().Get("util"), 32)
+		js, _ := json.Marshal(InstanceOfConfiguration().SetShareMaxUtilization(util))
+		w.Header().Set("Content-Type", "application/json")
+		w.Write(js)
+		break
+
 	default:
 		http.Error(w, "Not Found", http.StatusNotFound)
 		break

src/resource_pool.go

@@ -194,7 +194,7 @@ func (pool *ResourcePool) checkDeadNodes() {
 				delete(pool.versions, k)
 				pool.versionsMu.Unlock()
 				nodesToDel = append(nodesToDel, k)
-				log.Warn(" node ", k, " is offline")
+				log.Warn("node ", k, " is offline")
 			}
 		}
 		for _, v := range nodesToDel {