fix leader don't be added to the blacklist

src/storage/ls/ob_ls.cpp

@@ -1237,12 +1237,19 @@ int ObLS::get_ls_info(ObLSVTInfo &ls_info)
   } else if (OB_FAIL(ls_tx_svr_.check_tx_blocked(tx_blocked))) {
     LOG_WARN("check tx ls state error", K(ret),KPC(this));
   } else {
+    // The readable point of the primary tenant is weak read ts,
+    // and the readable point of the standby tenant is readable scn
+    if (MTL_IS_PRIMARY_TENANT()) {
+      ls_info.weak_read_scn_ = ls_wrs_handler_.get_ls_weak_read_ts();
+    } else if (OB_FAIL(get_ls_replica_readable_scn(ls_info.weak_read_scn_))) {
+      TRANS_LOG(WARN, "get ls replica readable scn fail", K(ret), KPC(this));
+    }
+    if (OB_SUCC(ret)) {
       ls_info.ls_id_ = ls_meta_.ls_id_;
       ls_info.replica_type_ = ls_meta_.get_replica_type();
       ls_info.ls_state_ = role;
       ls_info.migrate_status_ = migrate_status;
       ls_info.tablet_count_ = ls_tablet_svr_.get_tablet_count();
-    ls_info.weak_read_scn_ = ls_wrs_handler_.get_ls_weak_read_ts();
       ls_info.need_rebuild_ = is_need_rebuild;
       ls_info.checkpoint_scn_ = ls_meta_.get_clog_checkpoint_scn();
       ls_info.checkpoint_lsn_ = ls_meta_.get_clog_base_lsn().val_;
@@ -1254,6 +1261,7 @@ int ObLS::get_ls_info(ObLSVTInfo &ls_info)
         TRANS_LOG(INFO, "current ls is blocked", K(ls_info));
       }
     }
+  }
   return ret;
 }
 

src/storage/tx/wrs/ob_black_list.cpp

@@ -243,7 +243,7 @@ int ObBLService::do_black_list_check_(sqlclient::ObMySQLResult *result)
     SCN gts_scn;
     if (OB_FAIL(get_info_from_result_(*result, bl_key, ls_info))) {
       TRANS_LOG(WARN, "get_info_from_result_ fail ", KR(ret), K(result));
-    } else if (ls_info.is_leader()) {
+    } else if (ls_info.is_leader() && check_need_skip_leader_(bl_key.get_tenant_id())) {
       // cannot add leader into blacklist
     } else if (ls_info.weak_read_scn_ == 0) {
       // log stream is initializing, should't be put into blacklist
@@ -274,6 +274,21 @@ int ObBLService::do_black_list_check_(sqlclient::ObMySQLResult *result)
   return ret;
 }
 
+bool ObBLService::check_need_skip_leader_(const uint64_t tenant_id)
+{
+  bool need_skip = true;
+  int ret = OB_SUCCESS;
+  MTL_SWITCH(tenant_id) {
+    if (!MTL_IS_PRIMARY_TENANT()) {
+      need_skip = false;
+    }
+  }
+  if (!need_skip) {
+    TRANS_LOG(INFO, "needn't skip leader", KR(ret), K(need_skip), K(tenant_id));
+  }
+  return need_skip;
+}
+
 int ObBLService::do_clean_up_()
 {
   int ret = OB_SUCCESS;

src/storage/tx/wrs/ob_black_list.h

@@ -380,6 +380,7 @@ private:
   int do_clean_up_();
   int get_info_from_result_(sqlclient::ObMySQLResult &result, ObBLKey &bl_key, ObLsInfo &ls_info);
   int64_t get_tenant_max_stale_time_(uint64_t tenant_id);
+  bool check_need_skip_leader_(const uint64_t tenant_id);
   void print_stat_();
 
 private: