From a883424d25ef9b9316830704287c0f4d28dcf161 Mon Sep 17 00:00:00 2001
From: utkarshcmu <utkarsh.cmu@gmail.com>
Date: Fri, 26 Feb 2016 19:01:06 -0800
Subject: [PATCH] smooth upgrade from Grafana 2.6 to 3.0

---
 public/app/plugins/datasource/opentsdb/datasource.js | 1 +
 1 file changed, 1 insertion(+)

diff --git a/public/app/plugins/datasource/opentsdb/datasource.js b/public/app/plugins/datasource/opentsdb/datasource.js
index 75a0560f5a8..83e7168399f 100644
--- a/public/app/plugins/datasource/opentsdb/datasource.js
+++ b/public/app/plugins/datasource/opentsdb/datasource.js
@@ -14,6 +14,7 @@ function (angular, _, dateMath) {
     this.name = instanceSettings.name;
     this.withCredentials = instanceSettings.withCredentials;
     this.basicAuth = instanceSettings.basicAuth;
+    instanceSettings.jsonData = instanceSettings.jsonData || {};
     this.tsdbVersion = instanceSettings.jsonData.tsdbVersion || 1;
     this.supportMetrics = true;
     this.tagKeys = {};