From 9768cf6b90bfb0aeb448cfd3aa003cccbd02d218 Mon Sep 17 00:00:00 2001
From: Susan LoVerso <sue@wiredtiger.com>
Date: Thu, 10 Dec 2015 11:17:25 -0500
Subject: [PATCH] WT-2283 Add yield to avoid tight looping.

---
 src/txn/txn.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/txn/txn.c b/src/txn/txn.c
index 8bfc48c1690..ed3a3a85b8c 100644
--- a/src/txn/txn.c
+++ b/src/txn/txn.c
@@ -334,8 +334,10 @@ __wt_txn_update_oldest(WT_SESSION_IMPL *session, bool force)
 			 */
 			WT_ASSERT(session, txn_global->scan_count > 0);
 			(void)__wt_atomic_subiv32(&txn_global->scan_count, 1);
-			if (force)
+			if (force) {
+				__wt_yield();
 				goto retry;
+			}
 		}
 	} else {
 		if (WT_VERBOSE_ISSET(session, WT_VERB_TRANSACTION) &&