From ae83937130d1abc097e2694de97bf9ea59ed2f32 Mon Sep 17 00:00:00 2001
From: Spencer T Brody <spencer@mongodb.com>
Date: Tue, 22 Dec 2015 17:06:40 -0500
Subject: [PATCH] SERVER-21996 Wait for replication to all nodes before
 shutting down config server primary in test

---
 .../replset_config/autodiscover_config_rs_from_secondary.js   | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/jstests/sharding/replset_config/autodiscover_config_rs_from_secondary.js b/jstests/sharding/replset_config/autodiscover_config_rs_from_secondary.js
index eb26f0f11ba..d0c4e84d8bd 100644
--- a/jstests/sharding/replset_config/autodiscover_config_rs_from_secondary.js
+++ b/jstests/sharding/replset_config/autodiscover_config_rs_from_secondary.js
@@ -25,6 +25,10 @@ var seedList = rst.name + "/" + rst.nodes[1].host; // node 1 is guaranteed to no
     MongoRunner.stopMongos(mongos);
 }
 
+// Wait for replication to all config server replica set members to ensure that mongos
+// doesn't read from a stale config server when trying to verify if the initial cluster metadata
+// has been properly written.
+rst.awaitReplication();
 // Now take down the one electable node
 rst.stop(0);
 rst.awaitNoPrimary();