1 files changed, 12 insertions, 0 deletions
diff --git a/src/mongo/client/replica_set_monitor.cpp b/src/mongo/client/replica_set_monitor.cpp
index 8b126fc00f2..3a2276c252f 100644
--- a/src/mongo/client/replica_set_monitor.cpp
+++ b/src/mongo/client/replica_set_monitor.cpp
@@ -495,6 +495,18 @@ void ReplicaSetMonitor::cleanup() {
     seedServers = StringMap<set<HostAndPort>>();
 }
 
+bool ReplicaSetMonitor::isKnownToHaveGoodPrimary() const {
+    boost::mutex::scoped_lock lk(_state->mutex);
+
+    for (const auto& node : _state->nodes) {
+        if (node.isMaster) {
+            return true;
+        }
+    }
+
+    return false;
+}
+
 Refresher::Refresher(const SetStatePtr& setState)
     : _set(setState), _scan(setState->currentScan), _startedNewScan(false) {
     if (_scan)