diff --git a/deps/oblib/src/lib/lock/ob_qsync_lock.cpp b/deps/oblib/src/lib/lock/ob_qsync_lock.cpp
index a91f0a404..465bb2853 100644
--- a/deps/oblib/src/lib/lock/ob_qsync_lock.cpp
+++ b/deps/oblib/src/lib/lock/ob_qsync_lock.cpp
@@ -50,11 +50,16 @@ int ObQSyncLock::wrlock()
     if (!ATOMIC_BCAS(&write_flag_, 0, 1)) {
       sched_yield();
     } else {
-      // write priority try sync to succ
-      while (!qsync_.try_sync()) {
+      bool sync_success = false;
+      for (int64_t i = 0; !sync_success && i < TRY_SYNC_COUNT; i++) {
+        sync_success = qsync_.try_sync();
+      }
+      if (sync_success) {
+        break;
+      } else {
+        ATOMIC_STORE(&write_flag_, 0);
         sched_yield();
       }
-      break;
     }
   } while (true);
   return common::OB_SUCCESS;
diff --git a/deps/oblib/src/lib/lock/ob_qsync_lock.h b/deps/oblib/src/lib/lock/ob_qsync_lock.h
index 708bfdaa0..df5bae1fb 100644
--- a/deps/oblib/src/lib/lock/ob_qsync_lock.h
+++ b/deps/oblib/src/lib/lock/ob_qsync_lock.h
@@ -33,6 +33,8 @@ public:
   int wrlock();
   void wrunlock();
   int try_rdlock();
+private:
+  static const int64_t TRY_SYNC_COUNT = 16;
 private:
   int64_t write_flag_ CACHE_ALIGNED;
   common::ObDynamicQSync qsync_;