SERVER-16119: faster WT shutdown race avoidance

1 files changed, 5 insertions, 2 deletions

diff --git a/src/mongo/db/storage/wiredtiger/wiredtiger_kv_engine.cpp b/src/mongo/db/storage/wiredtiger/wiredtiger_kv_engine.cpp
index 01e4e6bbaa9..0ad0d32e9bf 100644
--- a/src/mongo/db/storage/wiredtiger/wiredtiger_kv_engine.cpp
+++ b/src/mongo/db/storage/wiredtiger/wiredtiger_kv_engine.cpp
@@ -330,7 +330,7 @@ namespace mongo {
             {
                 boost::mutex::scoped_lock lk( _identToDropMutex );
                 _identToDrop.insert( uri );
-                _epoch++;
+                _epoch.fetchAndAdd(1);
             }
             _sessionCache->closeAll();
             return false;
@@ -340,11 +340,14 @@ namespace mongo {
         return false;
     }
 
-    bool WiredTigerKVEngine::haveDropsQueued() const {
+    void WiredTigerKVEngine::syncSizeInfoOccasionally() const {
         if ( _sizeStorerSyncTracker.intervalHasElapsed() ) {
             _sizeStorerSyncTracker.resetLastTime();
             syncSizeInfo(false);
         }
+    }
+
+    bool WiredTigerKVEngine::haveDropsQueued() const {
         boost::mutex::scoped_lock lk( _identToDropMutex );
         return !_identToDrop.empty();
     }