From 4663e0b8beb1e0b79a0d0c696f500d4c7ea1354d Mon Sep 17 00:00:00 2001
From: Baris Soner Usakli <barisusakli@gmail.com>
Date: Fri, 14 Feb 2014 14:14:05 -0500
Subject: [PATCH] paranoid

---
 src/upgrade.js | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/upgrade.js b/src/upgrade.js
index 2f684179a0..3e612f893f 100644
--- a/src/upgrade.js
+++ b/src/upgrade.js
@@ -591,7 +591,7 @@ Upgrade.upgrade = function(callback) {
 						return next(err);
 					}
 
-					db.delete('topics:tid', function(err) {
+					db.rename('topics:tid', 'topics:tid:old', function(err) {
 						if(err) {
 							return next(err);
 						}
@@ -605,8 +605,8 @@ Upgrade.upgrade = function(callback) {
 								return next(err);
 							}
 							winston.info('[2014/2/14] Upgraded topics to sorted set');
-							next();
-						})
+							db.delete('topics:tid:old', next);
+						});
 					});
 				})
 			} else {