[tablelock] Fix a bug that select __all_virutal_obj_lock will return error...

[tablelock] Fix a bug that select __all_virutal_obj_lock will return error code if the LS is offline

src/observer/virtual_table/ob_all_virtual_obj_lock.cpp

@@ -129,7 +129,13 @@ int ObAllVirtualObjLock::get_next_obj_lock_or_iter_tx(ObLockID &lock_id)
       } else {
         obj_lock_iter_.reset();
         if (OB_FAIL(ls_->get_lock_id_iter(obj_lock_iter_))) {
-          SERVER_LOG(WARN, "fail to get obj lock iter", K(ret));
+          if (OB_ENTRY_NOT_EXIST == ret) {
+            SERVER_LOG(WARN,
+                       "fail to get obj lock iter, try to get next ls",
+                       K(ret), K(ls_->get_ls_id()));
+            ret = OB_SUCCESS;  // continue
+          }
+          SERVER_LOG(WARN, "fail to get obj lock iter", K(ret), K(ls_->get_ls_id()));
         }
       }
     } else {
@@ -161,6 +167,12 @@ int ObAllVirtualObjLock::get_next_lock_op(transaction::tablelock::ObTableLockOp
       } else {
         lock_op_iter_.reset();
         if (OB_FAIL(ls_->get_lock_op_iter(lock_id, lock_op_iter_))) {
+          if (OB_ENTRY_NOT_EXIST == ret) {
+            SERVER_LOG(WARN,
+                       "fail to get lock op iter, try to get next lock_id",
+                       K(ret), K(lock_id));
+            ret = OB_SUCCESS;  // continue
+          }
           SERVER_LOG(WARN, "fail to get lock op iter", K(ret), K(lock_id));
         }
       }

src/storage/tablelock/ob_lock_memtable_mgr.cpp

@@ -192,7 +192,7 @@ int ObLockMemtableMgr::release_head_memtable_(memtable::ObIMemtable *imemtable,
   int ret = OB_SUCCESS;
   int tmp_ret = OB_SUCCESS;
 
-  LOG_INFO("lock memtable mgr release head memtable", KP(imemtable));
+  LOG_INFO("lock memtable mgr release head memtable", KP(imemtable), K(force));
   ObLockMemtable *memtable = static_cast<ObLockMemtable *>(imemtable);
   if (get_memtable_count_() > 0 && force) {
     // for force
@@ -203,7 +203,8 @@ int ObLockMemtableMgr::release_head_memtable_(memtable::ObIMemtable *imemtable,
         LOG_WARN("unregister from common checkpoint failed", K(tmp_ret), K_(ls_id), K(memtable));
       }
       release_head_memtable();
-      FLOG_INFO("succeed to release head lock table memtable", K(ret), K_(ls_id), KP(imemtable));
+      FLOG_INFO("succeed to release head lock table memtable", K(ret),
+                K_(ls_id), KP(imemtable), K(memtable_head_), K(memtable_tail_));
     }
   } else if (!force) {
     // just for flush