From c0e86a51503e7f995f3e41c397e76f70acf4742f Mon Sep 17 00:00:00 2001
From: Tian Guangyu <tianguangyu@jd.com>
Date: Thu, 31 Dec 2015 12:23:09 +0800
Subject: [PATCH] add txn.Rollback on txn error

---
 kv/txn.go | 1 +
 1 file changed, 1 insertion(+)

diff --git a/kv/txn.go b/kv/txn.go
index 197a6fc5c5..18515380bf 100644
--- a/kv/txn.go
+++ b/kv/txn.go
@@ -38,6 +38,7 @@ func RunInNewTxn(store Storage, retryable bool, f func(txn Transaction) error) e
 			continue
 		}
 		if err != nil {
+			txn.Rollback()
 			return errors.Trace(err)
 		}