diff --git a/src/rootserver/ob_root_inspection.cpp b/src/rootserver/ob_root_inspection.cpp
index 6dcb2ac0a227932f955a4a2f7b5b54defe2b4307..8f5181a54506626d82304e6884cbd4e3d43f73b9 100644
--- a/src/rootserver/ob_root_inspection.cpp
+++ b/src/rootserver/ob_root_inspection.cpp
@@ -1653,9 +1653,10 @@ int ObForceDropSchemaTask::process()
   int ret = OB_SUCCESS;
   const int64_t FAST_INTERVAL = 10 * 1000 * 1000;  // 10s
   int64_t delay = ObInspector::INSPECT_INTERVAL;
-#ifdef ERRSIM
+#ifdef DEBUG
   delay = ObServerConfig::get_instance().schema_drop_gc_delay_time;
 #endif
+
   ObForceDropSchemaChecker drop_schema_checker(root_service_,
       root_service_.get_schema_service(),
       root_service_.get_common_rpc_proxy(),
diff --git a/src/rootserver/ob_root_service.cpp b/src/rootserver/ob_root_service.cpp
index d22b5da2307cc1eaed7b15c9bf1f03ea1054fcf3..095cc64f770f6c123cc3875fb7e2e3f5368cef8d 100644
--- a/src/rootserver/ob_root_service.cpp
+++ b/src/rootserver/ob_root_service.cpp
@@ -2269,9 +2269,10 @@ int ObRootService::schedule_inspector_task()
 {
   int ret = OB_SUCCESS;
   int64_t inspect_interval = ObInspector::INSPECT_INTERVAL;
-#ifdef ERRSIM
+#ifdef DEBUG
   inspect_interval = ObServerConfig::get_instance().schema_drop_gc_delay_time;
 #endif
+
   int64_t delay = 1 * 60 * 1000 * 1000;
   int64_t purge_interval = GCONF._recyclebin_object_purge_frequency;
   int64_t expire_time = GCONF.recyclebin_object_expire_time;
diff --git a/src/rootserver/ob_schema_history_recycler.cpp b/src/rootserver/ob_schema_history_recycler.cpp
index 98015c75464778fcfd9c3ffaf4cbda997a89a812..4c395e751ba9614b113ac22b2a10fa9a5bb1f099 100644
--- a/src/rootserver/ob_schema_history_recycler.cpp
+++ b/src/rootserver/ob_schema_history_recycler.cpp
@@ -473,7 +473,7 @@ int ObSchemaHistoryRecycler::get_recycle_schema_version_by_standby_cluster(
       ret = OB_ERR_UNEXPECTED;
       LOG_WARN("schema_status_proxy is null", K(ret));
     } else {
-      for (int64_t i = 0; OB_SUCC(ret) && i < tenant_ids.at(i); i++) {
+      for (int64_t i = 0; OB_SUCC(ret) && i < tenant_ids.count(); i++) {
         const uint64_t tenant_id = tenant_ids.at(i);
         int64_t recycle_schema_version = OB_INVALID_VERSION;
         ObRefreshSchemaStatus schema_status;
@@ -660,6 +660,7 @@ int ObSchemaHistoryRecycler::get_recycle_schema_version_by_global_stat(
       }
     }
     if (OB_SUCC(ret)) {
+      // step 4. restore point
       int64_t schema_version = 0;
       for (int64_t i = 0; OB_SUCC(ret) && i < tenant_ids.count(); i++) {
         const uint64_t tenant_id = tenant_ids.at(i);
@@ -670,6 +671,8 @@ int ObSchemaHistoryRecycler::get_recycle_schema_version_by_global_stat(
                    OB_FAIL(fill_recycle_schema_versions(tenant_id, schema_version, recycle_schema_versions))) {
           LOG_WARN("fail to fill recycle schema versions", KR(ret), K(tenant_id), K(schema_version));
         }
+        LOG_INFO("[SCHEMA_RECYCLE] get recycle schema version by restore point",
+                 KR(ret), K(tenant_id), K(schema_version));
       }
     }
   }