fix building log endpoints without error judge

agent/logs_agent.go

@@ -154,6 +154,12 @@ func (a *Agent) startLogAgent() {
 	}
 
 	endpoints, err := BuildEndpoints(intakeTrackType, AgentJSONIntakeProtocol, logsconfig.DefaultIntakeOrigin)
+	if err != nil {
+		message := fmt.Sprintf("Invalid endpoints: %v", err)
+		status.AddGlobalError(invalidProcessingRules, message)
+		log.Println("E!", errors.New(message))
+		return
+	}
 	processingRules, err := GlobalProcessingRules()
 	if err != nil {
 		message := fmt.Sprintf("Invalid processing rules: %v", err)

main.go

@@ -100,6 +100,7 @@ EXIT:
 		}
 	}
 
+	ag.Stop()
 	log.Println("I! exited")
 }