diff --git a/deps/oblib/src/lib/utility/ob_tracepoint.h b/deps/oblib/src/lib/utility/ob_tracepoint.h
index fce4686394..af5e5f57f2 100644
--- a/deps/oblib/src/lib/utility/ob_tracepoint.h
+++ b/deps/oblib/src/lib/utility/ob_tracepoint.h
@@ -703,6 +703,7 @@ class EventTable
       EN_COMPACTION_UPDATE_REPORT_SCN = 737,
       EN_CO_MREGE_DAG_READY_FOREVER = 738,
       EN_CO_MREGE_DAG_SCHEDULE_REST = 739,
+      EN_COMPACTION_SCHEDULE_MEDIUM_MERGE_AFTER_MINI = 740,
 
       // please add new trace point after 750
       EN_SESSION_LEAK_COUNT_THRESHOLD = 751,
diff --git a/src/share/scheduler/ob_tenant_dag_scheduler.cpp b/src/share/scheduler/ob_tenant_dag_scheduler.cpp
index 8596282c5d..38015a512a 100644
--- a/src/share/scheduler/ob_tenant_dag_scheduler.cpp
+++ b/src/share/scheduler/ob_tenant_dag_scheduler.cpp
@@ -131,9 +131,10 @@ int ObINodeWithChild::add_parent_node(ObINodeWithChild &parent)
 {
   int ret = OB_SUCCESS;
   ObMutexGuard guard(lock_);
-  inc_indegree();
   if (OB_FAIL(parent_.push_back(&parent))) {
     COMMON_LOG(WARN, "failed to add parent", K(ret), K(parent));
+  } else {
+    inc_indegree();
   }
   return ret;
 }