From f7ded408d09ce891f23adede2c676077ea497f97 Mon Sep 17 00:00:00 2001
From: Alexander Zobnin <alexanderzobnin@gmail.com>
Date: Sat, 11 Jul 2015 17:27:24 +0300
Subject: [PATCH] Added alert with explanations when limitmetrics parameter
 exceeded.

---
 zabbix/datasource.js | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/zabbix/datasource.js b/zabbix/datasource.js
index ccdebea..ab95d84 100644
--- a/zabbix/datasource.js
+++ b/zabbix/datasource.js
@@ -12,7 +12,7 @@ function (angular, _, kbn) {
 
   var module = angular.module('grafana.services');
 
-  module.factory('ZabbixAPIDatasource', function($q, backendSrv, templateSrv, ZabbixAPI, zabbixHelperSrv) {
+  module.factory('ZabbixAPIDatasource', function($q, backendSrv, templateSrv, alertSrv, ZabbixAPI, zabbixHelperSrv) {
 
     /**
      * Datasource initialization. Calls when you refresh page, add
@@ -122,6 +122,9 @@ function (angular, _, kbn) {
             // Don't perform query for high number of items
             // to prevent Grafana slowdown
             if (items.length > self.limitmetrics) {
+              var message = "Try to increase limitmetrics parameter in datasource config.<br>"
+                + "Current limitmetrics value is " + self.limitmetrics;
+              alertSrv.set("Metrics limit exceeded", message, "warning", 10000);
               return [];
             } else {
               items = _.flatten(items);